在白噪声和量子噪声区中耦合自旋的动力学
Dynamics of coupled spins in the white- and quantum-noise regime
摘要：
我们研究了一般自旋-自旋耦合中耗散自旋的动力学。我们调查的人口动态和弛豫的纯度在白噪声政权，其中确切的结果是可用的。除此之外，我们发现显着减少退相干和纯度衰减的减速简并点周围。我们还确定在解析形式的一个声子交换贡献的退相干和松弛的欧姆量子噪声制度有效到零温度。
英文摘要：
We study the dynamics of dissipative spins for general spin-spin coupling. We investigate the population dynamics and relaxation of the purity in the white noise regime, in which exact results are available. Inter alia, we find distinct reduction of decoherence and slowdown of purity decay around degeneracy points. We also determine in analytic form the one-phonon exchange contribution to decoherence and relaxation in the ohmic quantum noise regime valid down to zero temperature.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
