Quantum-to-classical correspondence in two-dimensional Heisenberg models
ORAL
Abstract
The quantum-to-classical correspondence (QCC) in spin models is a puzzling phenomenon
where the static susceptibility of a quantum system agrees with its classical-system counterpart,
at a different corresponding temperature, within the systematic error at a sub-percent level.
We employ the bold diagrammatic Monte Carlo method to explore the universality of QCC by
considering three different two-dimensional spin-1/2 Heisenberg models. In particular,
we reveal the existence of QCC in two-parametric models.
where the static susceptibility of a quantum system agrees with its classical-system counterpart,
at a different corresponding temperature, within the systematic error at a sub-percent level.
We employ the bold diagrammatic Monte Carlo method to explore the universality of QCC by
considering three different two-dimensional spin-1/2 Heisenberg models. In particular,
we reveal the existence of QCC in two-parametric models.
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Presenters
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Tao Wang
University of Massachusetts Amherst
Authors
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Tao Wang
University of Massachusetts Amherst
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Xiansheng Cai
University of Massachusetts Amherst
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Kun Chen
Simons Foundation, Department of Physics and Astronomy, Rutgers, The State University of New Jersey, Flatiron Institute, Center for Computational Quantum Physics, Center for Computational Quantum Physics, Flatiron Institute
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Nikolai Prokof'ev
University of Massachusetts Amherst
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Boris Svistunov
University of Massachusetts Amherst