通过 dressed states 实现两个原子之间的快速绝热量子态转移和纠缠态生成。

Fast adiabatic quantum state transfer and entanglement generation between two atoms via dressed states.

机构信息

Department of Physics, College of Science, Yanbian University, Yanji, Jilin 133002, People's Republic of China.

出版信息

Sci Rep. 2017 Apr 11;7:46255. doi: 10.1038/srep46255.

DOI:10.1038/srep46255

PMID:28397793

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5387687/

Abstract

We propose a dressed-state scheme to achieve shortcuts to adiabaticity in atom-cavity quantum electrodynamics for speeding up adiabatic two-atom quantum state transfer and maximum entanglement generation. Compared with stimulated Raman adiabatic passage, the dressed-state scheme greatly shortens the operation time in a non-adiabatic way. By means of some numerical simulations, we determine the parameters which can guarantee the feasibility and efficiency both in theory and experiment. Besides, numerical simulations also show the scheme is robust against the variations in the parameters, atomic spontaneous emissions and the photon leakages from the cavity.

摘要

我们提出了一种 dressed-state 方案，以实现原子-腔量子电动力学中的绝热捷径，从而加速绝热双原子量子态传输和最大纠缠态的产生。与受激拉曼绝热通道相比，dressed-state 方案以非绝热的方式大大缩短了操作时间。通过一些数值模拟，我们确定了可以保证理论和实验中可行性和效率的参数。此外，数值模拟还表明，该方案对参数变化、原子自发发射和光子从腔中泄漏具有鲁棒性。