Non-Markovian dynamics of spin squeezing

作者：Xue Peng^*

来源：Physics Letters, Section A: General, Atomic and Solid State Physics , 2013, 377(19-20): 1328-1332.

DOI：10.1016/j.physleta.2013.04.006

• Spin squeezing
• Non-Markovian decoherence

We evaluate the spin squeezing dynamics of N independent spin-1/2 particles with exchange symmetry. Each particle couples to an individual and identical reservoir. We study the time evolution of spin squeezing under the influence of different decoherence. The spin squeezing property vanishes with evolution time under Markovian decoherence, while it collapses quickly and revives under non-Markovian decoherence. As spin squeezing can be regarded as a witness of multipartite entanglement, our scheme shows the collapses and revivals of multipartite entanglement under the influence of non-Markovian decoherence.

• 出版日期2013-8-15
• 单位东南大学