QED3 AND 2-DIMENSIONAL SUPERCONDUCTIVITY WITHOUT PARITY VIOLATION
QED3 AND 2-DIMENSIONAL SUPERCONDUCTIVITY WITHOUT PARITY VIOLATION
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DOI：
10.1016/0550-3213(92)90632-l
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发表时间：
1992-11-16
影响因子：
2.8
通讯作者：
MAVROMATOS, NE
中科院分区：
文献类型：
--
作者：
DOREY, N;MAVROMATOS, NE
我们研究了最近提出的二维超导的宇称不变模型。该模型由与阿贝尔规范场符号相反的两种费米子组成，与QED3密切相关。论文的第一部分详细分析了QED3的相关性质。特别地，我们研究了宇称守恒费米子质量的动力学产生和有限温度对称性的恢复跃迁。我们展示了宇称不变量模型是如何作为一种有效的长波理论出现在二维量子反铁磁体中的空穴动力学的。该模型显示了没有宇称或时间反转对称性破坏的第二类超导电性，2DELTA/k(B)T(C)的高值，量子HC/2E的磁通量子化和二维迈斯纳效应。我们讨论了该模型与高温超导体的可能关联。
We investigate a recently proposed parity-invariant model of two-dimensional superconductivity. The model consists of two-species of fermions coupled with opposite sign to an abelian gauge field and is closely related to QED3. The first part of the paper is devoted to a detailed analysis of the relevant properties of QED3. In particular we study the dynamical generation of a parity-conserving fermion mass and the finite-temperature symmetry restoration transition. We show how the parity-invariant model arises as an effective long-wavelength theory of the dynamics of holes in a two-dimensional quantum antiferromagnet. The model exhibits type-II superconductivity without parity or time-reversal symmetry violation, a high value of 2DELTA/k(B)T(c), flux quantization with quantum hc/2e and a two-dimensional Meissner effect. We discuss the possible relevance of this model to the high-T(c) superconductors.