Dongni Chen, Jiahui Li, Stefano Chesi and Ying-Dan Wang
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引用次数: 0
Abstract
We consider generating maximally entangled states (Bell states) between two qubits coupled to a common bosonic mode, based on f-STIRAP. Utilizing the systematic approach developed by Wang et al (2017 New J. Phys.19 093016), we quantify the effects of non-adiabatic leakage and system dissipation on the entanglement generation, and optimize the entanglement by balancing non-adiabatic leakage and system dissipation. We find the analytical expressions of the optimal coupling profile, the operation time, and the maximal entanglement. Our findings have broad applications in quantum state engineering, especially in solid-state devices where dissipative effects cannot be neglected.
我们考虑基于 f-STIRAP 在耦合到共同玻色子模式的两个量子比特之间产生最大纠缠态(贝尔态)。利用 Wang 等人(2017 New J. Phys.19 093016)开发的系统方法,我们量化了非绝热泄漏和系统耗散对纠缠生成的影响,并通过平衡非绝热泄漏和系统耗散优化了纠缠。我们找到了最佳耦合曲线、运行时间和最大纠缠的解析表达式。我们的发现在量子态工程中有着广泛的应用,尤其是在耗散效应不可忽视的固态设备中。
期刊介绍:
Communications in Theoretical Physics is devoted to reporting important new developments in the area of theoretical physics. Papers cover the fields of:
mathematical physics
quantum physics and quantum information
particle physics and quantum field theory
nuclear physics
gravitation theory, astrophysics and cosmology
atomic, molecular, optics (AMO) and plasma physics, chemical physics
statistical physics, soft matter and biophysics
condensed matter theory
others
Certain new interdisciplinary subjects are also incorporated.