Past
Events

Date/Time
Place
Speaker
Title

:
:
:
:

9th December 2009 / 14:00 -

Dr. Philippe Raynal (Centre for Quantum Technologies, Singapore)

Encoding many qubits in a single rotor

Date/Time
Place
Speaker
Title

:
:
:
:

2nd-5th December, 2009
National Institute of Informatics, Tokyo, Japan

Date/Time
Place
Speaker
Title

:
:
:
:

11th November 2009 / 15:00 -

Dr.Daniel Burgarth (Imperial College, London)

Scalable quantum computation via local control of only two qubits

Date/Time
Place
Speaker
Title

:
:
:
:

21th October 2009 / 15:00 -

Dr. Kazuya Yuasa (Waseda Institute for Advanced Study, Waseda University, Japan)

Driving two fixed qubits to a maximally entangled state by repeated on-and off-resonant scattering of ancilla qubits

Date/Time
Place
Speaker
Title

:
:
:
:

14th October 2009 / 15:00 -

Prof. Takuya Hirano (Gakushuin University, Japan)

Continuous-variable quantum key distribution and entanglement generation using pulsed light

Date/Time
Place
Speaker
Title

:
:
:
:

17th September 2009 / 16:00 -

Prof. Y. Ogata (University of Tokyo, Japan)

Large deviations in quantum spin systems

Date/Time
Place
Speaker
Title

:
:
:
:

24th June 2009 / 15:00-

Dr. Naoki Yamamoto (Keio University)

Control theoretical approach to quantum control and information

Date/Time
Place
Speaker
Title

:
:
:
:

10th June 2009 / 15:00-

Dr. Mark Thompson (the University of Bristol)

Integrated Quantum Photonics

Date/Time
Place
Speaker
Title

:
:
:
:

27th May 2009 / 15:00-16:00

Dr. A. Tomita (Nano Electronics Res. Labs., NEC)

Secure quantum key distribution with decoy-BB84 protocol

Date/Time
Place
Speaker
Title

:
:
:
:

13th May 2009 / 15:00-

Dr. Satoshi Ishizaka (Nano Electronics Res. Labs., NEC)

On the (im)possibility of cheat-sensitive quantum bit commitment

Date/Time
Place
Speaker
Title

:
:
:
:

11th March 2009 / 14:00-

Dr. Christopher Portmann (TITech)

On the power of quantum encryption keys

Date/Time
Place
Speaker
Title

:
:
:
:

2nd March, 2009
National Institute of Informatics, Tokyo, Japan

Date/Time
Place
Speaker
Title

:
:
:
:

17th February 2009 / 15:00-

Dr. Hauken Haseler (University of Waterloo, Canada)

Expectation value matrix formalism for detecting entanglement

Date/Time
Place
Speaker
Title

:
:
:
:

24th February, 2009
National Institute of Informatics, Tokyo, Japan

Date/Time
Place
Speaker
Title

:
:
:
:

21nd January 2009 / 15:00-

Dr. Masahito Hayashi (Tohoku University)

Quantum universal coding protocols and universal approximation of multi-copy states

Date/Time
Place
Speaker
Title

:
:
:
:

8th January 2009 / 16:00-

Mr. Robert Glück (University of Copenhagen, Denmark)

Reversible Machine Code and its Abstract Processor Architecture

Date/Time
Place
Speaker
Title

:
:
:
:

10th December 2008 / 16:30-18:00

Dr. Ashley Stevens

Accuracy threshold for concatenated error detection in one dimension

Date/Time
Place
Speaker
Title

:
:
:
:

12th November 2008 / 16:30-

Prof. Christian Miniatura (Institut non Linéaire de Nice, France)

Life after a mean free path

Date/Time
Place
Speaker
Title

:
:
:
:

Wed. 22rd October 2008 / 16:00-

Dr. Alexander Kemp (NTT, Japan)

In detail discussion of some experimental limitations for a (three-JJ) flux qubit read out by a DC-SQUID

Date/Time
Place
Speaker
Title

:
:
:
:

Friday, 17th October 2008 / 14:00-

Prof. Ulf Leonhardt (National University of Singapore and University of St. Andrews)

The science and technology of invisibility

Date/Time
Place
Speaker
Title

:
:
:
:

Wednesday, 8th October 2008 / 15:00-

Dr. Iulia Buluta (Riken, Japan)

Planar Coulomb crystals for Quantum Simulation

Date/Time
Place
Speaker
Title

:
:
:
:

Wed. 17th September 2008 / 16:30-

Dr. Iordanis Kerenidis (CNRS, Universite Paris-Sud XI, France)

Non local Boxes and Communication Complexity

Date/Time
Place
Speaker
Title

:
:
:
:

Tuesday, 16th September 2008 / 15:00-

Ms. Melissa Makin (the University of Sydney)

University of Melbourne, Australia Title: Photon behaviour in arrays of coupled cavities containing single two level atoms.

Date/Time
Place
Speaker
Title

:
:
:
:

Wed. 25th June 2008 / starts at 15:00

Dr. Thaddeus D. Ladd (NII, Stanford University)

Recent Progress in Quantum Computing with Optically Controlled Semiconductors

Date/Time
Place
Speaker
Title

:
:
:
:

11th June 2008 / starts at 15:00

Dr. Y. Kawaguchi (the University of Tokyo, Japan)

Topological excitations and spin textures in spinor Bose-Einstein condensates

Date/Time
Place
Speaker
Title

:
:
:
:

28th May 2008 / starts at 15:00

Dr. Yukihiro Ota (Kinki University, Japan)

Holonomic quantum gates in an isospectral deformation of Ising model

Date/Time
Place
Speaker
Title

:
:
:
:

14th May 2008 / starts at 15:00

Dr. Peter Turner (The University of Tokyo, Japan)

Effective decoherence from bounded quantum reference frames.

Date/Time
Place
Speaker
Title

:
:
:
:

1st May 2008 / 17:00-18:30

Prof. Franco Nori (RIKEN, Japan, and Univ. of Michigan, USA)

Quantum Circuits as Artificial Atoms

Date/Time
Place
Speaker
Title

:
:
:
:

28th March, 2008
National Institute of Informatics, Tokyo, Japan

Date/Time
Place
Speaker
Title

:
:
:
:

Wednesday 27th February 2008 / 16:30-

Dr. Masaki Owari (Imperial College, UK)

Two-way classical communication remarkably improves local distinguishability

Date/Time
Place
Speaker
Title

:
:
:
:

24 January 2008 / 16:30-

Dr. Ryo Namiki (Osaka University)

Fidelity criterion for quantum-domain transmission and storage of coherent states beyond unit-gain constraint

Date/Time
Place
Speaker
Title

:
:
:
:

22 November 2007 / 16:30-

Dr. Tatsuhiko Koike (Keio University)

Quantum brachistochrone

Date/Time
Place
Speaker
Title

:
:
:
:

25 October 2007 / 16:30-

Milan Mosonyi (GSIS, Tohoku University)

Hypothesis testing for certain correlated states on a spin chain

Date/Time
Place
Speaker
Title

:
:
:
:

11 October 2007 / 16:30-

Dr. Casey Myers (Applications of Controlled Rotations in Qubus Computation)

/qulink/abstract2007s/abstract_q3901.html

Date/Time
Place
Speaker
Title

:
:
:
:

27 September 2007 / 16:30-

Mr. Keisuke Fujii (Kyoto University)

Optimal entanglement purification with double selection and upper bound on the noise threshold for fault-tolerant computation

Date/Time
Place
Speaker
Title

:
:
:
:

12 July 2007 / 16:30-

Dr. Masaki Owari (UT)

Entanglement and group symmetries: stabilizer, symmetric and antisymmetric states

Date/Time
Place
Speaker
Title

:
:
:
:

28 June 2007 / 16:30-

Dr. Hoshang Heydari (Nihon University)

Concurrence and entanglement witnesses for multi-qubit states

Date/Time
Place
Speaker
Title

:
:
:
:

14 June 2007 / 16:30-

Dr. Tsuyoshi Ito (NII)

An approach to Bell inequalities from combinatorial optimization

Date/Time
Place
Speaker
Title

:
:
:
:

24 May 2007 / 16:30-

Dr. Gen Kimura (Tohoku University)

How to detect a possible correlation from the information of a sub-system in quantum mechanical systems.

Date/Time
Place
Speaker
Title

:
:
:
:

10 May 2007 / 15:00-

Mr. Tokishiro Karasawa (NII, Japan)

Conservation-law-induced precision limits for realizations of quantum gates

Date/Time
Place
Speaker
Title

:
:
:
:

13 April 2007 / 14:00-

Prof. V. P. Belavkin

On entangled quantum entropies, conditional information and capacity

Date/Time
Place
Speaker
Title

:
:
:
:

08th February 2007

Dr. Akira Kitagawa (NICT)

Entanglement quantification with Fisher information

Date/Time
Place
Speaker
Title

:
:
:
:

25th January 2007

Dr. Atsushi Tanaka (Tokyo Metropolitan University)

Cheon's anholonomies in quantum map

Date/Time
Place
Speaker
Title

:
:
:
:

23 January 2007

Yasser Omar (Technical University of Lisbon)

Particle Statistics: a Resource for Quantum Information Processing

Date/Time
Place
Speaker
Title

:
:
:
:

14th December 2006

Keiichi Shigechi (The University of Tokyo)

Integrable Loop Models, Spin Chains and Hecke Algebra

Date/Time
Place
Speaker
Title

:
:
:
:

30th November 2006

Dr. Neill Lambert (The University of Tokyo)

Noise and entanglement in non-equilibrium quantum dots

Date/Time
Place
Speaker
Title

:
:
:
:

9th November 2006

Dr. Peter van Loock (NII)

Universal Quantum Computation with Gaussian Continuous-Variable Cluster States

Date/Time
Place
Speaker
Title

:
:
:
:

26th October 2006

Dr. Andrew Greentree (University of Melbourne)

Silicon and diamond: two outstanding media for quantum information processing

Date/Time
Place
Speaker
Title

:
:
:
:

28th September 2006

Dr. Kaoru Shimizu (NTT Basic Research Laboratories)

Pair-wise entanglement and quantum phase transition of quantum spin chains

Date/Time
Place
Speaker
Title

:
:
:
:

13th July 2006

Francesco Buscemi (ERATO-SORST)

Information flow in decoherence process

Date/Time
Place
Speaker
Title

:
:
:
:

22th June 2006

Dr. Tohya Hiroshima (ERATO)

Monogamy inequality for distributed Gaussian entanglement

Date/Time
Place
Speaker
Title

:
:
:
:

8th June 2006

Dr. Koji Azuma (The University of Tokyo, Japan)

Quantum cloning with nonlocal assistance: Complement of Jozsa's stronger no-cloning theorem

Date/Time
Place
Speaker
Title

:
:
:
:

25th May 2006

Dr. Yodai Watanabe (NII, Japan)

Security proof of the BB84 protocol in practical implementation

Date/Time
Place
Speaker
Title

:
:
:
:

11 May 2006

Oka Takashi (the University of Tokyo)

Zener breakdown in Mott insulators and a quantum walk analysis

Date/Time
Place
Speaker
Title

:
:
:
:

27 April 2006

Dr. Kiyoshi Tamaki (NTT Basic Research Laboratories)

On the performance of two protocols: SARG04 and BB84

Date/Time
Place
Speaker
Title

:
:
:
:

24 April 2006

Prof. Samuel L. Braunstein (York University, UK)

Quantum information with continuous variables

Date/Time
Place
Speaker
Title

:
:
:
:

13 April 2006

Dr. Damian Markham (the University of Tokyo)

Multiparty entanglement and LOCC state discrimination

Date/Time
Place
Speaker
Title

:
:
:
:

08 December 2005

Dr. Cyrus Master (Stanford University and NII)

Error avoidance in the quantum search algorithm by judicious gate design

Date/Time
Place
Speaker
Title

:
:
:
:

09 November 2005

Dr. Chip Elliott (BBN, U.S.A.)

BBN's Quantum Networktest bed

Date/Time
Place
Speaker
Title

:
:
:
:

27 October 2005

Hoshang Heydari (Nihon University)

Quantum entanglement measure for general pure multipartite states

Date/Time
Place
Speaker
Title

:
:
:
:

13 October 2005

Prof. Tim C. Ralph (University of Queensland)

Quantum Time Machines: What? Why? and (maybe) How?

Date/Time
Place
Speaker
Title

:
:
:
:

04 October 2005

Professor Sir Peter L. Knight (Blackett Laboratory, Imperial College London)

Manipulating Cold Atoms for Quantum Information Processing

Date/Time
Place
Speaker
Title

:
:
:
:

22 June 2005

Pranab Sen (NEC Labs America)

Random Measurement Bases, Distinguishing Quantum States and Applications to the Hidden Subgroup Problem

Date/Time
Place
Speaker
Title

:
:
:
:

22 September 2005

Shingo Fujiwara (the University of Tokyo)

Simulation of Ion-trap Quantum Computation

Date/Time
Place
Speaker
Title

:
:
:
:

9 June 2005

Tomoyuki Horikiri (PhD student, The University of Tokyo, Japan)

Quantum key distribution with a heralded single photon source and a photon number resolving detector

Date/Time
Place
Speaker
Title

:
:
:
:

26 May 2005

Masaki Owari (the University of Tokyo, Japan)

Local copying and its relationship with Local discrimination

Date/Time
Place
Speaker
Title

:
:
:
:

28 April 2005

Dr. Akira Kitagawa

Effective squeezing enhancement via measurement-induced non-Gaussian operation and its application to dense coding scheme

Date/Time
Place
Speaker
Title

:
:
:
:

14 April 2005

Francois Legall (Technical Assistant, ERATO / doctoral course student, The University of Tokyo)

An Efficient Quantum Algorithm for the Hidden Subgroup Problem over a Class of non-Abelian Groups

Date/Time
Place
Speaker
Title

:
:
:
:

24 March 2005

Dr. Koji Maruyama

Does the second law imply the Holevo bound?

Date/Time
Place
Speaker
Title

:
:
:
:

23 March 2005

Prof. David Avis (Computer Science, McGill University, Canada)

A few million more Bell inequalities

Date/Time
Place
Speaker
Title

:
:
:
:

16 March 2005

Hirotada Kobayashi (ERATO, Japan)

Exact Quantum Algorithms for the Leader Election Problem

Date/Time
Place
Speaker
Title

:
:
:
:

24 February 2005

Dr. Xiang-Bin Wang (ERATO)

Beating the PNS attack for QKD with coherent light

Date/Time
Place
Speaker
Title

:
:
:
:

15-16 February 2005

Dr. Vincent Danos (CNRS, UniversitéParis VII)

Measurement based quantum computing

Date/Time
Place
Speaker
Title

:
:
:
:

10th February 2005

Dr. Masahiro Takeoka (NICT, Japan)

Implementation of quantum measurements with linear optics and continuous photon counting

Date/Time
Place
Speaker
Title

:
:
:
:

13th January 2005

Dr. Tim Byrnes (NII)

Simulating Lattice Gauge Theory on a Quantum Computer

Date/Time
Place
Speaker
Title

:
:
:
:

25th November 2004

Dr. Fumiko Yamaguchi (Stanford University/Keio University)

Solid-state NMR quantum computation

Date/Time
Place
Speaker
Title

:
:
:
:

19th November 2004

Prof. Samuel L. Braunstein (York University, UK)

State estimation on a circle

Date/Time
Place
Speaker
Title

:
:
:
:

14th October 2004

Dr. Keiji Saito (University of Tokyo)

Nonadiabatic Manipulation in Discrete-Level systems and Its Application

Date/Time
Place
Speaker
Title

:
:
:
:

Thu., 3th December 2015 15：00-16：00
room 1903 (19F), National Institute of Informatics

Dr. Eriko Kaminishi (The University of Tokyo)

Entanglement prethermalization in a one-dimensional Bose gas

Date/Time
Place
Speaker
Title

:
:
:
:

Thu., 5th November 2015 15：00-16：00
room 1320　(3F), Science Building 4, Hongo-campus, University of Tokyo

Dr. Tomotaka Kuwahara (The University of Tokyo)

General theory for finite-time dynamics in periodically driven many-body systems

Date/Time
Place
Speaker
Title

:
:
:
:

Thu., 29th October 2015 15：00-16：00
room 1320　(3F), Science Building 4, Hongo-campus, University of Tokyo

Dr. Hiroyasu Tajima (RIKEN Center for Emergent Matter Science)

Measurement-based Formulation of Quantum Heat Engine and Optimal Efficiency with Finite-Size Effect

Date/Time
Place
Speaker
Title

:
:
:
:

13rd-14th October, 2015
National Institute of Informatics, Tokyo, Japan

Date/Time
Place
Speaker
Title

:
:
:
:

28th September-2nd October, 2015
National Institute of Informatics, Tokyo, Japan

Date/Time
Place
Speaker
Title

:
:
:
:

29th-30th August, 2015
National Institute of Informatics, Tokyo, Japan

Date/Time
Place
Speaker
Title

:
:
:
:

Fri., 21st August 2015 13：00-14：30
room 1320　(3F), Science Building 4, Hongo-campus, University of Tokyo

Prof. George Sudarshan (Center for Complex Quantum Systems, University of Texas at Austin)

Quantum Zeno Effect

Date/Time
Place
Speaker
Title

:
:
:
:

Mon., 15th June 2015 15:00-16:00
room 1320　(3F), Science Building 4, Hongo-campus, University of Tokyo

Dr. Yoshifumi Nakata (The University of Tokyo)

Decoupling with random diagonal-unitary matrices

Date/Time
Place
Speaker
Title

:
:
:
:

Mon., 11th May 2015 15:00-16:00
room 1320　(3F), Science Building 4, Hongo-campus, University of Tokyo

Dr. Erik Gauger (Heriot-Watt University, U.K.)

Rejuvenating Quantum Walks

Date/Time
Place
Speaker
Title

:
:
:
:

Mon., 27th April 2015 15:00-16:00
room 1901 (19F), National Institute of Informatics

Dr. Anton Kockum (RIKEN Center for Emergent Matter Science)

Quantum optics with surface acoustic waves

Date/Time
Place
Speaker
Title

:
:
:
:

Mon., 13th April 2015 15:00-16:00
room 1320　(3F), Science Building 4, Hongo-campus, University of Tokyo

Dr. Ruibo Jin (Quantum ICT Laboratory, National Institute of Information and Communications Technology)

High-purity single-photon source and its application in quantum information

Date/Time
Place
Speaker
Title

:
:
:
:

Mon., 23rd February 201515:00-16:00
room 1901 (19F), National Institute of Informatics

Dr. Devin Smith (NTT Communication Science Laboratories)

Quantum Non-locality—steering, entanglement, and loopholes

Date/Time
Place
Speaker
Title

:
:
:
:

17th-18th February, 2015
National Institute of Informatics, Tokyo, Japan

Date/Time
Place
Speaker
Title

:
:
:
:

Mon., 9th February 2015 15:00-16:00
room 1320 (3F), Science Building 4, Hongo-campus, University of Tokyo

Prof. Takeshi Koshiba (Graduate School of Science and Engineering, Saitama University)

Blind Quantum Computation and Its Application

Date/Time
Place
Speaker
Title

:
:
:
:

Mon., 20th October 2014 15:00-16:00
room 2010, National Institute of Informatics

Dr. Yuichiro Matsuzaki (NTT Communication Science Laboratories)

Improving the coherence time of a quantum system via a coupling to a short-lived system

Date/Time
Place
Speaker
Title

:
:
:
:

Thu., 28th, August 2014 15:00~16:00
room 1901 (19F), National Institute of Informatics

Junyi Wu (Heinrich-Heine Universität Düsseldorf, Germany)

Randomized Graph states and X-chains

Date/Time
Place
Speaker
Title

:
:
:
:

Tue., 26th August 2014 15:00-16:00
Room 431 of Science Building 1, Hongo-campus, UT

Marco Túlio Quintino (Univ. Geneve)

Joint measurability, EPR steering, and Bell nonlocality

Date/Time
Place
Speaker
Title

:
:
:
:

Mon, 17th July 2014 15:00-16:00
room 207, Sci. Bldg. 1, Hongo-campus, UT

Dr Bobby Tan (Centre for Quantum Technologies, Singapore)

Exploiting separable quantum states in communication protocols.

Date/Time
Place
Speaker
Title

:
:
:
:

Mon, 16th June 2014 15:00-16:00
room1320, science building 4, UT

Dr. Raymond Lal (University of Oxford)

Theory-independent limits on correlations from generalised Bayesian networks

Date/Time
Place
Speaker
Title

:
:
:
:

Mon, 14th July 2014 15:00-16:00
room 1901, National Institute of Informatics

Dr. Go Kato (NTT Communication Science Laboratories)

Unconditional security with strong reference light in the CV-QKD

Date/Time
Place
Speaker
Title

:
:
:
:

Mon, 09th June 2014 15:00-16:00
room 1208, National Institute of Informatics,

Dr. Xin-You Lü (RIKEN, Japan)

Quantum-criticality-induced strong Kerr nonlinearities in optomechanical systems

Date/Time
Place
Speaker
Title

:
:
:
:

Mon. 26th May 2014 15:00-16:00
room 1320, sience building 4, University of Tokyo

Prof. Francesco Buscemi (Nagoya University)

The Quantum Blackwell Theorem and Its Consequences

Date/Time
Place
Speaker
Title

:
:
:
:

Mon, 28th April 2014 15:00-16:00
room1320, science building 4, UT

Dr. Yasuhiro Takahashi (NTT Communication Science Laboratories)

Computational power of constant-depth quantum circuits with unbounded fan-out gates

Date/Time
Place
Speaker
Title

:
:
:
:

26th-27th, March, 2014
National Institute of Informatics, Tokyo, Japan

Date/Time
Place
Speaker
Title

:
:
:
:

Mon, 10th March 2014 15:00-16:00
room1320, sience building 4, UT

Dr. Mario Berta (Caltech)

Identifying the Information Gain of a Quantum Measurement

Date/Time
Place
Speaker
Title

:
:
:
:

3rd-5th March, 2014
National Institute of Informatics, Tokyo, Japan

Date/Time
Place
Speaker
Title

:
:
:
:

Wed. 12th February 2014 15:00-16:00
room 1901/1902 (19th floor), National Institute of Informatics

Kazuya Yuasa (Department of Physics, Waseda University, Tokyo)

Quantum Estimation via a Single Sequence of Measurements with a Quantum Mixing Channel

Date/Time
Place
Speaker
Title

:
:
:
:

Mon. 2nd December 2013, 15:00-16:00
Seminar room 2005, National Institute of Informatics

Dr. Natsuko Ishida (RIKEN, Japan)

Non-equilibrium dynamics of polaritons in the quantum strong coupling regime

Date/Time
Place
Speaker
Title

:
:
:
:

Mon.25th November 2013 15:00-16:00
Science 1 building, room 447(4th floor), the University of Tokyo, Japan

Dr. Shunsuke Furukawa (University of Tokyo, Japan)

Entanglement spectra in topological phases and coupled Tomonaga-Luttinger liquids

Date/Time
Place
Speaker
Title

:
:
:
:

Mon.13th November 2013 15:00-16:00

Dr. Kiyoshi Tamaki (NTT Basic Research Laboratories, Japan)

Researches in Tokyo QKD network

Date/Time
Place
Speaker
Title

:
:
:
:

1st November 2013 / 15:30-16:30

Prof. Gerard Milburn (University of Queensland, Australia)

Deterministic Many-Resonator W Entanglement of Nearly Arbitrary Microwave States via Attractive Bose-Hubbard Simulation

Date/Time
Place
Speaker
Title

:
:
:
:

Mon.28th October 2013 15:00-16:00

Dr. Yujiro Eto (Gakushuin University, Japan)

Generation and detection of squeezed states using a pulsed light

Date/Time
Place
Speaker
Title

:
:
:
:

26th September 2013, 14:00-15:00

Dr. Fumiaki Matsuoka (Hokkaido University, Japan)

Improvement of Success Probability by Squeezed Light in Weak Value Amplification for Single-Photon-Level Nonlinearity

Date/Time
Place
Speaker
Title

:
:
:
:

17th September 2013 / 15:00-16:00

Mr. Tommaso Demarie (Macquarie University)

Detecting topological order on a 2D lattice of quantum harmonic oscillators.

Date/Time
Place
Speaker
Title

:
:
:
:

13th September 2013, 13:30-15:00

Dr. Akira Saito (National Institute of Informatics, Japan)

Difficulty of the Ising spin glass problem on physical systems

Date/Time
Place
Speaker
Title

:
:
:
:

Mon.08th July 2013 15:00-16:00

Dr. Tim Byrnes (National Institute of Informatics, Japan)

Quantum information using two component Bose-Einstein condensate

Date/Time
Place
Speaker
Title

:
:
:
:

Mon.24th June 2013 15:00-

Dr. Takashi Mori (the University of Tokyo)

Out-of-equilibrium phase transitions in the optical cavity system

Date/Time
Place
Speaker
Title

:
:
:
:

Mon.10th June 2013 / 15:00 -

Prof.Tomohiro Ogawa (University of Electro-Communications)

An information spectrum approach to classical-quantum channel resolvability

Date/Time
Place
Speaker
Title

:
:
:
:

21st-23rd May, 2013
National Institute of Informatics, Tokyo, Japan

Date/Time
Place
Speaker
Title

:
:
:
:

Mon.13th May 2013 / 15:00 - 16:00

Dr. Cecilia Cormick (Ulm University, Germany)

Dissipative ground-state preparation of a spin chain by a structured environment

Date/Time
Place
Speaker
Title

:
:
:
:

Mon.22th April 2013 / 15:00 - 16:00

Prof. Ryosuke Shimizu (University of Electro-Communications)

Control of frequency correlations between photons

Date/Time
Place
Speaker
Title

:
:
:
:

Mon.15th April 2013 / 15:00 -

Dr. Akihito Soeda (the University of Tokyo, Japan)

Generalized Monogamy of Contextual Inequalities from the No-Disturbance Principle

Date/Time
Place
Speaker
Title

:
:
:
:

Fri.22th March 2013 / 15:00 -

Dr. Marco Tomamichel (CQT, the National University of Singapore)

Hierarchy of Information Quantities for the Finite Block Length Analysis of Quantum Tasks (joint work with Masahito Hayashi)

Date/Time
Place
Speaker
Title

:
:
:
:

Mon.18th March 2013 / 15:00-17:30

Mr. Alexandru Paler (University of Passau, Germany)

Verification of topological quantum computers

Date/Time
Place
Speaker
Title

:
:
:
:

Mon.18th March 2013 / 15:00-17:30

Prof. Ilia Polian (University of Passau, Germany)

Towards scalable quantum computing: algorithmic challenges

Date/Time
Place
Speaker
Title

:
:
:
:

Mon.18th February 2013 / 15:00 -

Dr. Fabian Furrer (the University of Tokyo, Japan)

Uncertainty Relations for Position & Momentum Observables with Application to QKD

Date/Time
Place
Speaker
Title

:
:
:
:

Tue.12th February 2013 / 15:15 - 16:15

Dr. Jun Suzuki (University of Electro-Communications, Japan)

Long-Lived Qubit rom Three Spin-1/2 Atoms

Date/Time
Place
Speaker
Title

:
:
:
:

Fri.1st Fabruary 2013 / 14:00-

Sir Peter Knight (Principal of the Kavli Royal Society International Centre, and Imperial College, London)

Quantum Technology for a Networked World: Clocks, GPS and all That

Date/Time
Place
Speaker
Title

:
:
:
:

Tue.29th January 2013 / 15:15-17:00

Ms Sania Jevtic (Imperial College, London)

The Quantum Steering Ellipsoid

Date/Time
Place
Speaker
Title

:
:
:
:

Tue.29th January 2013 / 15:15-17:00

Ms Fern Watson (Imperial College, London)

Overhead for the Toric Code

Date/Time
Place
Speaker
Title

:
:
:
:

15th January, 2013
National Institute of Informatics, Tokyo, Japan

Date/Time
Place
Speaker
Title

:
:
:
:

Mon.10th December 2012 / 15:00 - 16:00

Prof. N. Yamamoto (Keio University)

Quantum information with linear control theory

Date/Time
Place
Speaker
Title

:
:
:
:

Mon.28th November 2012 / 10:30-

Dr. Peter P. Rohde (Macquarie University, Australia)

Boson-sampling: A new route towards optical quantum computing

Date/Time
Place
Speaker
Title

:
:
:
:

Mon.26th November 2012 / 15:00-

Prof. M. Koashi (the University of Tokyo, Japan)

Security of quantum key distribution using optical phase shifts in a pulse train

Date/Time
Place
Speaker
Title

:
:
:
:

Mon.12th November 2012 / 15:00 - 16:15

Prof. Subhash Chaturvedi (the University of Hyderabad, India)

Aspects of quantum nets on phase spaces based on F2n and Z2n

Date/Time
Place
Speaker
Title

:
:
:
:

Mon.22nd October 2012 / 15:00 -

Dr. Robert Johansson (Advanced Science Institute, RIKEN, Japan)

Dynamical Casimir effect in superconducting microwave circuits

Date/Time
Place
Speaker
Title

:
:
:
:

Mon.9th October 2012 / 14:00 -

Prof. Andrew Greentree (RMIT University, Australia)

Introducing photonic techniques to the solid state Solid-state

Date/Time
Place
Speaker
Title

:
:
:
:

14th September 2012 / 13:30 -

Prof. Howard Wiseman (Griffith University)

Quantum jumps in atoms: what's new after 100 years?

Date/Time
Place
Speaker
Title

:
:
:
:

Mon.2nd July 2012 / 15:00 -

Dr. A. Kawachi (Tokyo Institute of Technology)

Quantum Reductions for Cryptographic Proofs

Date/Time
Place
Speaker
Title

:
:
:
:

Mon.25th June 2012 / 16:00 - 17:00

Dr. Masaki Owari (NTT)

Probing an untouchable environment as a resource for quantum computing

Date/Time
Place
Speaker
Title

:
:
:
:

Mon.11th June 2012 / 15:00 -

Dr. Akira Oiwa (Department of Applied Physics, The University of Tokyo)

Control of single photo-electron and angular momentum transfer between single photon and single spin in quantum dots

Date/Time
Place
Speaker
Title

:
:
:
:

Mon.28th May 2012 / 15:00 -

Dr. Burkhard Scharfenberger (NII QIST)

Classifaction of SU(n) spin chains by means of extended Young tableaux

Date/Time
Place
Speaker
Title

:
:
:
:

15th May 2012 / 15:00 -

Dr. Naresh Sharma (School of Technology and Computer Science, Tata Institute of Fundamental Research)

Non-asymptotic information-theoretic analysis for multi-party scenarios.

Date/Time
Place
Speaker
Title

:
:
:
:

23rd April 2012 / 15:00 -

Dr.Takahiro Sagawa (Kyoto University)

How Has the Paradox of Maxwell's Demon Been Resolved?

Date/Time
Place
Speaker
Title

:
:
:
:

09th April 2012 / 15:00 -

Dr. Jonathan Matthews (University of Bristol)

Simulating quantum statistics with photonic entanglement

Date/Time
Place
Speaker
Title

:
:
:
:

28th February 2012 / 15:00 -

Arend G. Dijkstra (Kyoto University)

Bathanglement and the nonlinear response

Date/Time
Place
Speaker
Title

:
:
:
:

21st February 2012 / 10:30 -

Christian Miniatura (CNRS/National University of Singapore)

Coherent Backscattering of Ultracold Matter Waves: Momentum Space Signatures

Date/Time
Place
Speaker
Title

:
:
:
:

Monday 13th February 2012 / 15:00 -

Alexey Pyrkov (NII, Tokyo, Japan)

Entanglement in solid-state NMR systems (open alternating spin chain, multiple-quantum NMR experiment and adiabatic demagnetization experiment)

Date/Time
Place
Speaker
Title

:
:
:
:

Monday 16th January 2012 / 16:00 -

Tomoyuki Morimae (Tokyo Institute of Technology)

Measurement-based quantum computation on tensor-network states and its application to blind quantum computation

Date/Time
Place
Speaker
Title

:
:
:
:

Monday 28th November 2011 / 15:00 -

Michal Hajdušek (the University of Tokyo)

Graph state entanglement and stabiliser formalism

Date/Time
Place
Speaker
Title

:
:
:
:

14th November 2011 / 15:00 -

Dr. Ichiro Hasuo (the University of Tokyo)

Functional Programming for Quantum Computation and Its Semantics

Date/Time
Place
Speaker
Title

:
:
:
:

24th October 2011 / 15:00 - 16:00

Dr. Paul Nation (RIKEN)

Non-Equilibrium Landauer Transport Model for Hawking Radiation from a Black Hole

Date/Time
Place
Speaker
Title

:
:
:
:

03rd October 2011 / 15:00 -

Dr Oscar C.O. Dahlsten (University of Oxford)

Quantifying the relation between work and information - recent results using the smooth entropy approach

Date/Time
Place
Speaker
Title

:
:
:
:

20th September 2011 / 15:00 -

Prof. Berthold-Georg Englert (National University of Singapore)

Test-state approach to the quantum search problem

Date/Time
Place
Speaker
Title

:
:
:
:

20th June 2011 / 15:00 -

Dr. Yasuhiro Tokura (NTT Basic Research Lab.)

Manipulation and detection of coupled spin qubits

Date/Time
Place
Speaker
Title

:
:
:
:

13th June 2011 / 15:00 -

Dr. Francois Le Gall (Assistant Professor,The University of Tokyo)

Quantum Private Information Retrieval with Sublinear Communication

Date/Time
Place
Speaker
Title

:
:
:
:

23rd May 2011 / 15:00 -

Dr. Michikazu Kobayashi (The University of Tokyo,Japan)

Non-Abelian vortex and its dynamics in cold atoms

Date/Time
Place
Speaker
Title

:
:
:
:

09th May 2011 / 15:00-

Dr. Jun-ichi Yoshikawa (Prof.Akira Furusawa group, The University of Tokyo)

Quantum teleportation of a non-Gaussian state

Date/Time
Place
Speaker
Title

:
:
:
:

11th April 2011 / 15:00-

Dr. Terry Rudolph (Imperial College, UK)

Characterizing globalness of unitary operations for quantum information processing

Date/Time
Place
Speaker
Title

:
:
:
:

30th March 2011 / 15:00-

Dr. Terry Rudolph (Imperial College, UK)

Negative heat flow as a witness of quantum entanglement.

Date/Time
Place
Speaker
Title

:
:
:
:

9th March 2011 / 13:30 -

Prof. Jörg Schmiedmayer (Vienna University of Technology, Austria)

Hybrid Quantum Systems: Interconnecting the Quantum Worlds

Date/Time
Place
Speaker
Title

:
:
:
:

23rd February 2011 / 15:00 -

Dr. Mark J. Everitt (The British University in Egypt / Loughborough University in the UK)

Quantum measurement with chaotic apparatus(Mark J. Everitt, W.J. Munro and T.P. Spiller)

Date/Time
Place
Speaker
Title

:
:
:
:

16th February 2011 / 15:00 -

Prof. Richard Cleve (University of Waterloo / Institute for Quantum Computing)

Efficient Discrete-Time Simulations of Continuous-Time Quantum Query Algorithms

Date/Time
Place
Speaker
Title

:
:
:
:

09th February 2011 / 15:30 -

Dr. Clare Horsman (Keio University, Japan)

Quantum picturalism for topological cluster-state computing

Date/Time
Place
Speaker
Title

:
:
:
:

19th January 2011 / 15:00 - 16:00

Dr. Yoichi Chizaki (The National Institute of Advanced Industrial Science and Technology)

Macroscopic quantum tunneling induced by a spontaneous periodic perturbation in intrinsic Josephson junctions

Date/Time
Place
Speaker
Title

:
:
:
:

14th January 2011 / 13:30-

Prof. Seth Lloyd (MIT, USA)

Date/Time
Place
Speaker
Title

:
:
:
:

Wednesday, 15th December 2010 / 15:00-

Ms. Stacey Jeffery (the University of Waterloo, Canada)

Trading Robustness for Correctness and Privacy in Voting, Beyond an Honest Majority

Date/Time
Place
Speaker
Title

:
:
:
:

08 December 2010 / 15:00-16:00

Dr. Jenny Hide (the University of Tokyo, Japan)

A Steady State Entanglement Witness

Date/Time
Place
Speaker
Title

:
:
:
:

22 November 2010 / 15:00-16:00

Dr. Kimura (Chuo University, Japan)

Derivation of Qubit from Physical Principles

Date/Time
Place
Speaker
Title

:
:
:
:

17 November 2010 / 15:00-15:30

Dr. Robin Blume-Kohout (Los Alamos National Laboratory, USA)

Creative uses of likelihood for quantum statistical inference

Date/Time
Place
Speaker
Title

:
:
:
:

10 November 2010 / 15:00-16:00

Dr. Rekishu Yamazaki (Kyoto University, JST-CREST)

Fine Optical Control without Hyper-fine --For the Application in Quantum Simulation--

Date/Time
Place
Speaker
Title

:
:
:
:

27 October 2010 / 15:00-16:00

Dr. Fuyuhiko Tanaka (The University of Tokyo, Japan)

Optimal prediction of the observable based on a partial measurement

Date/Time
Place
Speaker
Title

:
:
:
:

13 October 2010 / 14:00-15:00

Dr. Nobuyasu Shiga (NICT)

Locking Laser Phase to the Atom Phase

Date/Time
Place
Speaker
Title

:
:
:
:

30 June 2010 / 15:00-

Dr. Warwick Bowen (the University of Queensland)

Cooling and Control of a Cavity Optoelectromechanical System

Date/Time
Place
Speaker
Title

:
:
:
:

23 June 2010 / 15:00-

Dr. Y. Nakamura (NEC, Japan)

Artificial atom in 1D open space

Date/Time
Place
Speaker
Title

:
:
:
:

26 May 2010 / 15:00-

Dr. Michael Fraser (The University of Tokyo)

Novel dynamic quantized vortex states in an exciton-polariton condensate

Date/Time
Place
Speaker
Title

:
:
:
:

19 May 2010 / 15:00-16:00

Dr. Jason Doukas (Yukawa Institute for Theoretical Physics, Kyoto University)

Qubit entanglement under acceleration

Date/Time
Place
Speaker
Title

:
:
:
:

28th April 2010 / 15:00 - 16:00

Dr. Min-Hsiu Hsieh (the Japan Science and Technology Agency)

The quantum dynamic capacity formula of a quantum channel (joint work with Dr. Mark Wilde)

Date/Time
Place
Speaker
Title

:
:
:
:

14th April 2010 / 16:00 -

Dr. Mark Everitt (NII)

Optical Quantum Logic with Multi-Mode Cavities

Date/Time
Place
Speaker
Title

:
:
:
:

30th-31st March 2010
National Institute of Informatics, Tokyo, Japan

Date/Time
Place
Speaker
Title

:
:
:
:

16th-17th March 2010
National Institute of Informatics, Tokyo, Japan

Date/Time
Place
Speaker
Title

:
:
:
:

15th February 2010 / 14:00 -

Dr. Yuji Hasegawa (Atominstitut, Technische Universität Wien)

Quantum optical phenomena studied with neutrons

Date/Time
Place
Speaker
Title

:
:
:
:

15th January 2010 / 15:00 -

Prof. Masanao Ozawa (Nagoya University, Japan)

Quantum measurements and the uncertainty principle

Date/Time
Place
Speaker
Title

:
:
:
:

2:00pm, May 13th, 2021
Virtual Seminar

Dr. Mary Jacquline Romero (University of Queensland, Australia.)

Quantum State Tomography for Qudits

Date/Time
Place
Speaker
Title

:
:
:
:

5:00pm, Feb 16th, 2021
Virtual Seminar

Dr. Simon Devitt (UTS, Sydney)

Quantum Computing Hardware and Software development

Date/Time
Place
Speaker
Title

:
:
:
:

5:00pm, Dec 3rd, 2020
Virtual Seminar

Dr. Gelo Noel M. Tabia (the National Tsing Hua University, Taiwan)

Activation of teleportation power by local filtering

Date/Time
Place
Speaker
Title

:
:
:
:

5:00pm, Sept 24th, 2020
Virtual Seminar

Prof. Saikat Ghosh (the Indian Institute of Technology)

Atomic coherence and quantum synchronization

Date/Time
Place
Speaker
Title

:
:
:
:

5:00pm, July 29th, 2020
Virtual Seminar

Prof. Yoshifumi Nakata (The University of Tokyo)

Quantum Information Approach to Information Paradox of Black Holes with Symmetry

Date/Time
Place
Speaker
Title

:
:
:
:

(Cancelled) 3:30pm, February 27th, 2020
Room 447, Science Building 1, at The University of Tokyo

Dr Yelena Guryanova (IQOQI, Vienna)

Ideal Projective Measurements Have Infinite Resource Costs

Date/Time
Place
Speaker
Title

:
:
:
:

(Cancelled) 3:30pm, February 27th, 2020
Room 447, Science Building 1, at The University of Tokyo

Dr Paul Erker (IQOQI, Vienna)

Autonomous quantum clocks: does thermodynamics limit our ability to measure time?

Date/Time
Place
Speaker
Title

:
:
:
:

3:00pm, November 8th, 2019
Room 2009/2010 (20th floor, National Institute of Informatics

Dr Erik Aurell (KTH - Royal Institute of Technology, Sweden)

Open quantum systems interacting with harmonic and anharmonic baths

Date/Time
Place
Speaker
Title

:
:
:
:

4:00pm, Tuesday September 24th, 2019
Room 1208 (12th floor), National Institute of Informatics

Dr. Ryuichi Ohta ((NTT Basic Research Laboratories, NTT Corporation))

Mechanical control of localized excitons

Date/Time
Place
Speaker
Title

:
:
:
:

4:00pm, Tuesday 18th June 2019
the University of Tokyo, Science building 1, room 934(9F)

Dr. Daniel Ebler (SUSTech, Shenzhen, Guangdong, China)

Quantum training of binary neural networks

Date/Time
Place
Speaker
Title

:
:
:
:

4:00pm, Tuesday 13rd November 2018
the University of Tokyo, Science building 1, room 431 (4F)

Dr. Daniel Ebler (The University of Hong Kong)

Quantum speedup in testing causal hypotheses

Date/Time
Place
Speaker
Title

:
:
:
:

2:45pm, Tuesday 26th June 2018
Room 1901 (19th floor), National Institute of Informatics

Dr. Fumiki Yoshihara (Advanced ICT Research Institute, National Institute of Information and Communications Technology)

Superconducting qubit-oscillator circuit beyond the ultrastrong-coupling regime

Date/Time
Place
Speaker
Title

:
:
:
:

3:30pm, Tuesday 29th May 2018
the University of Tokyo, Science building 1, room 431 (4F)

Dr. Hui Khoon Ng (Yale-NUS College, and CQT, NUS, Singapore)

Randomized benchmarking does not measure average infidelity

Date/Time
Place
Speaker
Title

:
:
:
:

4:00pm, Tuesday 8th May 2018
Room 1901 (19th floor), National Institute of Informatics

Dr. David Elkouss (TU Delft)

Towards a quantum internet - the certifiable road ahead

Date/Time
Place
Speaker
Title

:
:
:
:

09 -11 April, 2018
National Institute of Informatics

Date/Time
Place
Speaker
Title

:
:
:
:

4:30pm, Tuesday 19th December 2017
Room 2001A (20th floor), National Institute of Informatics

Dr. Zeliang Xiang (NII, Vienna Center for Quantum Science and Technology)

Intra-city quantum communication via thermal microwave networks

Date/Time
Place
Speaker
Title

:
:
:
:

22th August 2017, 16:00-
Room 2208 (22th floor), National Institute of Informatics

Dr. Nathan Shammah (RIKEN)

Numerical and analytical tools to solve the open-system quantum dynamics of N two-level systems

Date/Time
Place
Speaker
Title

:
:
:
:

25th July 2017, 16:00-
University of Tokyo, Science 1 building, room 913 (9F)

Dr. Michele Dall'Arno (Centre for Quantum Technologies, National University of Singapore)

No-hypersignaling principle

Date/Time
Place
Speaker
Title

:
:
:
:

27th June 2017, 15:30-16:30
Room 2009-2010 (20th floor), National Institute of Informatics

Dr. Kazunari Hashimoto (University of Yamanashi)

Nonadiabaticity in spin pumping under relaxation

Date/Time
Place
Speaker
Title

:
:
:
:

13th June 2017, 16:00-
University of Tokyo, Science 1 building, room 201a (2F)

Dr. Peter Wittek (ICFO - The Institute of Photonic Sciences, Barcelona)

The growing intersection of machine learning and quantum physics hypothesis

Date/Time
Place
Speaker
Title

:
:
:
:

30th May 2017, 15:30-16:30
Room 2009-2010 (20th floor), National Institute of Informatics

Dr. Takashi Mori (University of Tokyo)

Systematic construction of counterexamples to eigenstate thermalization hypothesis

Date/Time
Place
Speaker
Title

:
:
:
:

9th May 2017, 16:00-17:30
Room 1901-1902 (19th floor), National Institute of Informatics

Dr. Michael Trupke (University of Vienna)

Scaled Control of Solid-State Qubit Arrays

Date/Time
Place
Speaker
Title

:
:
:
:

06 -08 March, 2017
1901, 19th floor, National Institute of Informatics

Date/Time
Place
Speaker
Title

:
:
:
:

02 - 03 March 2017
1901, 19th floor, National Institute of Informatics

Date/Time
Place
Speaker
Title

:
:
:
:

27 February - 1 March 2017
Suzuki Umetaro Hall, Riken

Date/Time
Place
Speaker
Title

:
:
:
:

Tuesday 24th Feb 2017 16:00-17:00
room 1208 (12F), National Institute of Informatics

Dr. Clemens Gneiting (RIKEN Center for Emergent Matter Science)

Treating disorder-perturbed quantum systems with quantum master equations

Date/Time
Place
Speaker
Title

:
:
:
:

Tuesday 14th Feb 2017 16:00-17:00
room 233 (2F), Science 1 building, University of Tokyo

Prof. Yeong Cherng (National Cheng Kung University)

Quantifying quantum steerability and measurement incompatibility using uncharacterized devices

Date/Time
Place
Speaker
Title

:
:
:
:

Fri., 27th January 2017 16:00-17:00
room 1902 (19F), National Institute of Informatics

Dr. Emi Yukawa (RIKEN Center for Emergent Matter Science)

Fast generation of macroscopic superposition states by coherent driving field

Date/Time
Place
Speaker
Title

:
:
:
:

Fri., 16th December 2016 16:00-17:00
room 1320　(3F), Science Building 4, Hongo-campus, University of Tokyo

Dr. Marco Tulio Quentino (University of Tokyo)

Can we reveal quantum nonlocality of (all) local entangled states?

Date/Time
Place
Speaker
Title

:
:
:
:

Wed., 17th August 2016 16:00-17:00
room 1901 (19F), National Institute of Informatics

Dr. Jaeha Lee (KEK Theory Center)

Quantum-classical Transformations based on Quasi-joint-spectral Distributions and its Application to novel Uncertainty Relations

Date/Time
Place
Speaker
Title

:
:
:
:

Wed., 13th July 2016 16:00-17:00
room 233 (2F), Science Building 1, Hongo-campus, University of Tokyo

Prof. Jun Suzuki (University of Electro-Communications)

Wave-particle duality from parameter estimation perspective: An example of nuisance parameter problem in quantum estimation theory

Date/Time
Place
Speaker
Title

:
:
:
:

Thu., 26th May 2016 15:00-16:00
room 1213 (12F), National Institute of Informatics

Dr. Neill Lambert (RIKEN Center for Emergent Matter Science)

Bistable photon emission in hybrid circuit-QED

Date/Time
Place
Speaker
Title

:
:
:
:

Thu., 24th March 2016 15:00-16:00
room 1212 (12F), National Institute of Informatics

Dr. Stefan Bäuml (NTT Communication Science Laboratories)

Witnessing entanglement by proxy

Date/Time
Place
Speaker
Title

:
:
:
:

Thu., 21st January 2016 15：30-16：30
room 2009 (20F), National Institute of Informatics

Dr. Mauro Cirio (RIKEN Center for Emergent Matter Science)

Ground State Electroluminescence