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arXiv 2003.07994cond-mat.supr-concond-mat.str-elnucl-th
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费米子动力学对称性和强关联电子:高温超导的综合模型

Fermion dynamical symmetry and strongly-correlated electrons: a comprehensive model of high-temperature superconductivity

Mike Guidry, Yang Sun, Lian-Ao Wu, Cheng-Li Wu

摘要:

本文综述了强关联电子的SU(4)模型在铜氧化物和铁基超导体中的应用。一个最小的自洽推广BCS理论,将反铁磁性在平等的基础上与配对和强大的库仑排斥被发现系统地占高温超导的主要特点,与微观细节的母化合物进入只有参数。这提供了一个系统的程序,从外围分离的基本,这表明,许多功能所表现出的高$T\tsub c$数据集是感兴趣的,在自己的权利,但不是中央的超导机制。更一般地说,我们提出,在许多物理学领域中观察到的令人惊讶的广泛的常规和非常规超导和超流体行为是由涌现的有效哈密顿量的类似代数结构的系统外观引起的,即使相应母态的微观哈密顿量可能彼此根本不同。

英文摘要:

We review application of the SU(4) model of strongly-correlated electrons to cuprate and iron-based superconductors. A minimal self-consistent generalization of BCS theory to incorporate antiferromagnetism on an equal footing with pairing and strong Coulomb repulsion is found to account systematically for the major features of high-temperature superconductivity, with microscopic details of the parent compounds entering only parametrically. This provides a systematic procedure to separate essential from peripheral, suggesting that many features exhibited by the high-$T\tsub c$ data set are of interest in their own right but are not central to the superconducting mechanism. More generally, we propose that the surprisingly broad range of conventional and unconventional superconducting and superfluid behavior observed across many fields of physics results from the systematic appearance of similar algebraic structures for the emergent effective Hamiltonians, even though the microscopic Hamiltonians of the corresponding parent states may differ radically from each other.

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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