2005/12/31 by Aurélien Dantan, Aurelien Dantan, Jean Cviklinski +5 · 1 citation
Computer Science · Physics and Astronomy · #Atomic and Subatomic Physics Research #Quantum Information and Cryptography #Quantum optics and atomic interactions #quant-ph
paper · pdf · doi:10.1103/physreva.73.032338
published as Physical Review A 73 (2006) 032338 · 6 pages, 5 figures
openalex publication_date 2006/03/27 · arxiv created 2006/04/07 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30
We study the transfer dynamics of nonclassical fluctuations of light to the ground-state collective spin components of an atomic ensemble during a pulsed quantum memory sequence, and evaluate the relevant physical quantities to be measured in order to characterize such a quantum memory. We show in particular that the fluctuations stored into the atoms are emitted in temporal modes which are always different from those of the readout pulse, but which can nevertheless be retrieved efficiently using a suitable temporal mode-matching technique. We give a simple toy model---a cavity with variable transmission---that accounts for the behavior of the atomic quantum memory.