Coherent control of quantum fluctuations using cavity electromagnetically induced transparency.
Coherent control of quantum fluctuations using cavity electromagnetically induced transparency.
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DOI：
10.1103/physrevlett.111.113602
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发表时间：
2013-09
影响因子：
8.6
通讯作者：
J. A. Souza;E. Figueroa;H. Chibani;C. J. Villas-Boas;G. Rempe
中科院分区：
文献类型：
--
作者：
J. A. Souza;E. Figueroa;H. Chibani;C. J. Villas-Boas;G. Rempe
我们研究了通过单原子腔量子电动力学（CQED）和电磁诱导透明（EIT）相结合对光束量子涨落的全光控制。具体地，EIT控制场用于将CQED跃迁频率调谐为与探测光共振或不共振。以这种方式，光子封锁和反封锁效应分别产生亚泊松和超泊松光场。可实现的量子控制为实现新型量子晶体管的原型铺平了道路，该晶体管放大或衰减光束的相对强度噪声。它的可行性证明了从最近的实验中使用现实的参数计算。
We study the all-optical control of the quantum fluctuations of a light beam via a combination of single-atom cavity quantum electrodynamics (CQED) and electromagnetically induced transparency (EIT). Specifically, the EIT control field is used to tune the CQED transition frequencies in and out of resonance with the probe light. In this way, photon blockade and antiblockade effects are employed to produce sub-Poissonian and super-Poissonian light fields, respectively. The achievable quantum control paves the way towards the realization of a prototype of a novel quantum transistor which amplifies or attenuates the relative intensity noise of a light beam. Its feasibility is demonstrated by calculations using realistic parameters from recent experiments.