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arXiv · 0905.2816

Quantum memory of a squeezed vacuum for arbitrary frequency sidebands

Manabu Arikawa·Kazuhito Honda·Daisuke Akamatsu·Satoshi Nagatsuka·Akira Furusawa·Mikio Kozuma
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Abstract

We have developed a quantum memory technique 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. 2MHz sidebands of squeezed vacuum pulses with temporal widths of 470ns and a squeezing level of -1.78 +- 0.02dB were stored for 3us in the laser-cooled 87Rb atoms. -0.44 +- 0.02dB of squeezing was retrieved, which is the highest squeezing ever reported for a retrieved pulse.

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Manabu Arikawa, Kazuhito Honda, Daisuke Akamatsu, Satoshi Nagatsuka, Akira Furusawa, Mikio Kozuma. 2009-05-18. Quantum memory of a squeezed vacuum for arbitrary frequency sidebands. https://doi.org/10.1103/physreva.81.021605

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