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Lee–Yang zeros and two-time spin correlation function

Author

Listed:
  • Gnatenko, Kh.P.
  • Kargol, A.
  • Tkachuk, V.M.

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.

Suggested Citation

  • Gnatenko, Kh.P. & Kargol, A. & Tkachuk, V.M., 2018. "Lee–Yang zeros and two-time spin correlation function," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 509(C), pages 1095-1101.
    • Handle: RePEc:eee:phsmap:v:509:y:2018:i:c:p:1095-1101
    DOI: 10.1016/j.physa.2018.06.103
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    References listed on IDEAS

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    1. Ananikian, N.S. & Hovhannisyan, V.V. & Kenna, R., 2014. "Partition function zeros of the antiferromagnetic spin-12 Ising–Heisenberg model on a diamond chain," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 396(C), pages 51-60.
    2. Hovhannisyan, V.V. & Ananikian, N.S. & Kenna, R., 2016. "Partition function zeros and magnetization plateaus of the spin-1 Ising–Heisenberg diamond chain," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 453(C), pages 116-130.
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