Song Jie, Di Jing-Yan, Xia Yan, Sun Xiu-Dong, Jiang Yong-Yuan
Department of Physics, Harbin Institute of Technology, Harbin 150001, China.
Department of Physics, Fuzhou University, Fuzhou 350002, China.
Sci Rep. 2015 Jun 22;5:10656. doi: 10.1038/srep10656.
We discuss a method to perform dissipation-assisted quantum state manipulation in a cavity. We show that atomic spontaneous emission and cavity decay might be exploited to drive many atoms into many-body steady-state entanglement. Our protocol offers a dramatic improvement in fidelity when noise strength increases. Moreover, the dephasing noise is suppressed effectively by showing that high-fidelity target state can be obtained in a dissipative environment.
我们讨论了一种在腔中执行耗散辅助量子态操纵的方法。我们表明，原子自发辐射和腔衰减可被用于驱动多个原子进入多体稳态纠缠。当噪声强度增加时，我们的协议在保真度方面有显著提高。此外，通过表明在耗散环境中可以获得高保真目标态，有效地抑制了退相噪声。
