Rényi entropies of interacting fermions from determinantal quantum Monte Carlo simulations
Rényi entropies of interacting fermions from determinantal quantum Monte Carlo simulations
复制标题
来自行列式量子蒙特卡罗模拟的相互作用费米子的 Rényi 熵
DOI:
10.1088/1742-5468/2014/08/p08015
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发表时间:
2014
期刊:
影响因子:
--
通讯作者:
S. Trebst
中科院分区:
文献类型:
--
作者:
P. Broecker;S. Trebst
Entanglement measures such as the entanglement entropy have become an indispensable tool to identify the fundamental character of ground states of interacting quantum many-body systems. For systems of interacting spin or bosonic degrees of freedom much recent progress has been made not only in the analytical description of their respective entanglement entropies but also in their numerical classification. Systems of interacting fermionic degrees of freedom, however, have proved to be more difficult to control, in particular with regard to the numerical understanding of their entanglement properties. Here we report a generalization of the replica technique for the calculation of Rényi entropies to the framework of determinantal Quantum Monte Carlo simulations—the numerical method of choice for unbiased, large-scale simulations of interacting fermionic systems. We demonstrate the strength of this approach over a recent alternative proposal based on a decomposition in free fermion Green's functions by studying the entanglement entropy of one-dimensional Hubbard systems both at zero and finite temperatures.
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DOI:
--
发表时间:
2012
期刊:
影响因子:
--
作者:
J. Mcminis;N. Tubman
通讯作者:
N. Tubman
DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
L. Bonnes;H. Pichler;A. Lauchli
通讯作者:
A. Lauchli
影响因子:
8.6
作者:
Depenbrock, Stefan;McCulloch, Ian P.;Schollwoeck, Ulrich
通讯作者:
Schollwoeck, Ulrich
DOI:
10.1088/1742-5468/2011/05/p05001
发表时间:
2011-05-01
影响因子:
2.4
作者:
Bauer, B.;Carr, L. D.;Wessel, S.
通讯作者:
Wessel, S.
影响因子:
3.7
作者:
Brian Swingle;J. Mcminis;N. Tubman
通讯作者:
N. Tubman