We demonstrate detection of a vector light shift (VLS) using the quantum lock-in method. The method offers precise VLS measurement with little affect from real magnetic field fluctuation. We detect a VLS on a Bose-Einstein condensate (BEC) of Rb87...
Tobias A. Eriksson   Ruben S. Luis   Georg Rademacher   Benjamin J. Puttnam   Kadir Gumus   Laurent Schmalen   Alex Alvarado   Hideaki Furukawa   Naoya Wada   Takuya Hirano   Masahide Sasaki   Masahiro Takeoka   
2020 European Conference on Optical Communications, ECOC 2020 2020年12月
We discuss challenges and recent progress on coding, digital signal processing and joint transmission with classical data channels, for quantum key distribution.
We demonstrate gravity compensation for an ultracold gas of Rb87 atoms with a time-averaged optical potential. The position of a far-off-resonance beam is temporally modulated with an acousto-optic deflector to efficiently produce a potential with...