基于腔的$\Lambda$型量子存储器噪声抑制理论
量子物理
2017-08-09 v1
摘要
量子存储器能够存储单光子或其他光量子态，并按需检索，为大规模光量子信息处理提供途径。一类有前景的存储器基于型原子系综中的远失谐拉曼吸收。然而在室温下这些系统表现出不期望的四波混频，这在单光子水平应用上是禁止的。本文展示如何通过将该存储介质置于中等精细度光学腔中抑制此噪声，从而消除阻碍该量子存储方法的主要障碍。
引用
@article{arxiv.1601.00157,
title = {Theory of noise suppression in {\Lambda}-type quantum memories by means of a cavity},
author = {J. Nunn and S. Thomas and J. H. D. Munns and K. T. Kaczmarek and C. Qiu and A. Feizpour and E. Poem and B. Brecht and D. J. Saunders and P. M. Ledingham and Dileep V. Reddy and M. G. Raymer and I. A. Walmsley},
journal= {arXiv preprint arXiv:1601.00157},
year = {2017}
}
备注
10 pages, 3 figures. This paper provides the theoretical background to our recent experimental demonstration of noise suppression in a cavity-enhanced Raman-type memory ( arXiv:1510.04625 ). See also the related paper arXiv:1511.05448, which describes numerical modelling of an atom-filled cavity. Comments welcome