Suppression of superfluidity by dissipation: An application to failed superconductors

Suppression of superfluidity by dissipation: An application to failed superconductors
复制标题

通过耗散抑制超流性:在失效超导体中的应用

DOI:
10.1103/physrevb.102.104515
复制
发表时间:
2020
期刊:
影响因子:
3.7
通讯作者:
Nagaosa Naoto
Nagaosa Naoto
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Misaki Kou;Nagaosa Naoto

文献摘要

参考文献

相似文献

玻色子的基态被分为超流体、玻色子量子霍尔态、莫特绝缘体和玻色玻璃。最近在外部磁场下的二维干净超导体中的实验强烈地表明存在库珀对的第四量子态,即,玻色金属或量子金属,其中电阻率在最低温度下保持恒定。然而,对它的理论认识仍然没有定论。在本文中,我们提出了一个模型,其中的旋涡行为的量子玻色子受到耗散在正常的核心。我们讨论,这些玻色子保持金属,即使在零温度下,通过推广的Feynman图片的超流在第一量子化公式,也通过微扰计算的场论模型在第二量子化形式主义。这一结果表明,玻色金属的零温电阻率表现为正常态和第二上临界场的剩余电阻率。它还预测玻色金属在超净超导体和脏极限或颗粒超导体中缺失。
The ground states of bosons have been classified into superfluids, bosonic quantum Hall states, Mott insulators, and Bose glass. Recent experiments in two-dimensional clean superconductors under an external magnetic fieldstrongly suggest the existence of the fourth quantum state of Cooper pairs, i.e., Bose metal or quantum metal, where the resistivity remains constant at lowest temperature. However, its theoretical understanding remains unsettled. In this paper, we propose a model where the vortices behave as quantum bosons subject to dissipation at the normal core. We discuss that those bosons remain metallic even at zero temperature by generalizing the Feynman picture of superfluidity in the first quantization formulation and also by a perturbative calculation for a field theoretical model in the second quantization formalism. This result indicates that the resistivityof Bose metal at zero temperature behaves aswithbeing the residual resistivity in the normal state andthe second upper critical field. It also predicts that the Bose metal is missing in superclean superconductors and at the dirty limit or in granular superconductors.
带电玻色子气体
DOI: 10.1103/physrev.124.649
发表时间: 1961
期刊: Physical Review
影响因子: --
作者:
L. Foldy
通讯作者: L. Foldy
具有强规范场相互作用的二维玻色液体。
DOI: --
发表时间: 1993
期刊: Physical Review B (Condensed Matter)
影响因子: --
作者:
Feigelman;Geshkenbein;Ioffe;Larkin
通讯作者: Larkin
凝聚单极子和阿贝尔约束
DOI: 10.1103/physrevlett.41.351
发表时间: 1978
影响因子: 8.6
作者:
M. Stone;P. Thomas
通讯作者: P. Thomas
绝缘体-超导体转变中电导率的波动与耗散。
DOI: 10.1103/physrevlett.84.737
发表时间: 1999
影响因子: 8.6
作者:
D. Dalidovich;P. Phillips
通讯作者: P. Phillips
无序超流体的约瑟夫森关系
DOI: 10.1103/physreva.91.023602
发表时间: 2015
期刊: Physical Review A
影响因子: 2.9
作者:
C. Müller
通讯作者: C. Müller