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Open Quantum Systems Decoherence

Lee-Yang zeros and two-time spin correlation function

arXiv

Authors: Kh. P. Gnatenko, A. Kargol, V. M. Tkachuk

Year

2017

Paper ID

24638

Status

Preprint

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~2 min

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Abstract

The two-time correlation function for probe spin interacting with spin system (bath) is studied. We show that zeros of this function correspond to zeros of partition function of spin system in complex magnetic field. The obtained relation gives new possibility to observe the Lee-Yang zeros experimentally. Namely, we show that measuring of the time dependence of correlation function allows direct experimental observation of the Lee-Yang zeros.

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The two-time correlation function for probe spin interacting with spin system (bath) is studied.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1712.02709 [2] arXiv https://arxiv.org/abs/1712.02709 [3] Publisher https://arxiv.org/abs/1712.02709

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