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arXiv 2106.09704cond-mat.str-elcond-mat.supr-con
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哈伯德模型中有限温度下的干涉态

Intertwined states at finite temperatures in the Hubbard model

E. W. Huang, W. O. Wang, J. K. Ding, T. Liu, F. Liu, X. -X. Huang, B. Moritz, T. P. Devereaux

摘要:

数值技术的重大进展使哈伯德模型的各种性质的研究取得了突破性进展。哈伯德模型是一个看似简单但复杂的相关电子模型,半个多世纪以来一直是研究的焦点。特别是,它抓住了强关联的本质,并被认为具有各种涌现,低能态和铜酸盐高温超导材料的集体激发特性。虽然在这里不可能对所有活动进行彻底的审查,但我们集中讨论了我们最近使用无偏的、数值精确的、“蛮力”的有限温度量子蒙特卡罗方法的工作。我们的各种研究揭示了丰富多样的量子液晶相和互补的输运性质,这回答了一些问题,但肯定会提出其他关于“奇怪的金属”行为和准粒子在哈伯德模型中的最终命运。

英文摘要:

Significant advances in numerical techniques have enabled recent breakthroughs in the study of various properties of the Hubbard model - a seemingly simple, yet complex model of correlated electrons that has been a focus of study for more than half a century. In particular, it captures the essence of strong correlations, and is believed to possess various emergent, low energy states and collective excitations characteristic of cuprate high-temperature superconducting materials. While a thorough review of all activity is not possible here, we have focused the discussion on our recent work using unbiased, numerically exact, ``brute force", finite temperature quantum Monte Carlo methods. Our various studies reveal a rich variety of quantum liquid crystal phases, and complementary transport properties, which answer some questions, but certainly raise others concerning ``strange metal" behavior and the ultimate fate of quasiparticles in the Hubbard model.

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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