Quantum memory of a squeezed vacuum for arbitrary frequency sidebands

Manabu Arikawa, Kazuhito Honda, Daisuke Akamatsu, Satoshi Nagatsuka, Keiichirou Akiba, Akira Furusawa, Mikio Kozuma

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)


We have developed a quantum memory that is completely compatible with current quantum information processing for continuous variables of light, where arbitrary frequency sidebands of a squeezed vacuum can be stored and retrieved using bichromatic electromagnetic induced transparency. The 2 MHz sidebands of squeezed vacuum pulses with temporal widths of 470 ns and a squeezing level of -1.78±0.02 dB were stored for 3 μs in laser-cooled Rb87 atoms. Squeezing of -0.44±0.02 dB, which is the highest squeezing reported for a retrieved pulse, was achieved.

Original languageEnglish
Article number021605
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number2
Publication statusPublished - 2010 Feb 22
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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