Persistent spin squeezing of a dissipative one-axis twisting model embedded in a general thermal environment

Yong Hong Ma, Quan Zhen Ding, Ting Yu

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12 Scopus citations

Abstract

We investigate spin squeezing for a one-axis twisting (OAT) model coupled to a general non-Markovian environment in a finiteerature regime. Using the non-Markovian quantum state diffusion and master equation approach, we numerically study non-Markovian spin-squeezing generation in the OAT model. Our results show that the total spin number N, energy kBT, and certain coefficients in the OAT model can play a crucial role in generating spin squeezing. In particular, it shows that the maximum spin squeezing can be significantly enhanced when the participating environment has a relatively long memory time.

Original languageEnglish
Article number022327
JournalPhysical Review A
Volume101
Issue number2
DOIs
StatePublished - Feb 2020

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