Speaker
Mr
Gianni Buser
(University of Basel)
Description
Quantum memories matched to single photon sources will form an important cornerstone of future quantum-network technology. We demonstrate such a memory in warm Rb vapor with on-demand storage and retrieval, based on electromagnetically induced transparency. We test the memory with laser pulses, attenuated to the single photon level. Their bandwidth is chosen to be 660(10) MHz to simulate the photons emitted by semiconductor quantum dots. In this regime, vapor cell memories offer an excellent compromise between storage efficiency, storage time, noise level, and experimental complexity. For 50 ns storage time, we measure an end-to-end efficiency of 3.4(3) %, extrapolating an intrinsic storage and retrieval efficiency of 17(3) %.
Authors
Mr
Gianni Buser
(University of Basel)
Dr
Janik Wolters
(University of Basel)
Mr
Roberto Mottola
(University of Basel)
Dr
Andrew Horsley
(University of Basel)
Dr
Lucas Béguin
(University of Basel)
Dr
Andreas Jöckel
(University of Basel)
Mr
Jan-Philipp Jahn
(University of Basel)
Prof.
Richard J. Warburton
Prof.
Philipp Treutlein
(University of Basel)
