Uncertainty Relations for Position & Momentum Observables with Application to QKD

Date/Time: Mon.18th February 2013 / 15:00 - - ()

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

Entropic uncertainty relations with quantum side-information give a tight characterization of the statistical ignorance of two non-commuting measurements with respect to additional quantum information stored by the observers. Beside its fundamental interests, these uncertainty relation are powerful tools to characterize quantum information theoretic tasks. I will present you such an uncertainty relations for position and momentum observables and show how it directly relates to the security of continuous variable quantum key distribution.