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arXiv 2106.06192cond-mat.str-elcond-mat.quant-gascond-mat.stat-mechhep-lat
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无符号问题的非厄米哈伯德模型

Non-Hermitian Hubbard model without the sign problem

Tomoya Hayata, Arata Yamamoto

摘要:

研究了具有非厄米非对称跳跃项的哈伯德模型。对两个自旋分量引入共轭跳跃项,从而抵消了负的符号。这就保证了量子蒙特卡罗模拟不存在负号问题。我们分析了反铁磁序和非厄米性对反铁磁序的抑制。

英文摘要:

We study the Hubbard model with non-Hermitian asymmetric hopping terms. The conjugate hopping terms are introduced for two spin components so that the negative sign is canceled out. This ensures that the quantum Monte Carlo simulation is free from the negative sign problem. We analyze the antiferromagnetic order and its suppression by the non-Hermiticity.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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