多个玻色库下的自旋压缩动力学

The Dynamics of Spin Squeezing under Multiple Bosonic Reservoirs

本文分析了一个具有交换对称性的N量子比特系综中的自旋压缩动力学问题,这些量子比特相互独立且分别与各自独立的和等价的多个玻色环境相互耦合。研究发现,非马尔科夫特性和玻色库个数在自旋压缩中起着重要作用。为了抑制环境退相干,我们还讨论了弱测量方法对自旋压缩的影响,得到一些有意义的结果。

This paper explores the spin squeezing dynamics for an ensemble of N independent qubits with exchange symmetry,each of which is coupled to uncorrelated and identical multiple bosonic reservoirs.It is showed that both the non-Markovian properties and reservoirs＇ number play an important role in spin squeezing.Moreover,in order to suppress the environmental decoherence,the influence of weak measurement method on spin squeezing is discussed and some significant results are disclosed.