论文标题

从自我引用阶段因子因多体波函数和超导性的出现量规场

Emergent gauge field from self-referencing phase factor on many-body wave functions and superconductivity

论文作者

Koizumi, Hiroyasu

论文摘要

超导性是一种现象,其中电流不摩擦流动。当前的标准理论是BCS(Bardeen-Cooper-Schrieffer)理论,该理论将其解释为由于电子配对的能量差距形成,而超循环产生的关键成分是仪表对称性的破坏。人们认为,这种标准理论可以完全理解超导性。然而,1986年丘比特人中超导性的发现改变了这种情况,显示了与标准理论相矛盾的许多实验结果。同样值得注意的是,标准理论在伦敦时刻的Supecurrent载体质量中与之矛盾。预测的质量是有效的质量,而实验值是游离电子质量。上面的矛盾表明对超导性理论进行基本修订的必要性。在这里,我们证明可以使用浆果阶段形式主义来实现所需的修订。它是在建立BCS理论之后开发的,并提供了一种检测新兴量规场的方法。浆果相形式检测到的波函数的自我引用相因解释了常规和丘比特超导体的超电流产生。它产生了一个仪表场,该字段使标准理论解释中的量规对称性破坏。

Superconductivity is a phenomenon where electrical current flows without friction. The current standard theory for it is the BCS (Bardeen-Cooper-Schrieffer) theory, which explains it as due to the energy gap formation by the electron-pairing, and the key ingredient for the supercurrent generation is the gauge symmetry breaking brought about by it. It was thought that superconductivity was fully understood by this standard theory; however, the discovery of superconductivity in cuprates in 1986 changed this situation, showing a number of experimental results that contradict the standard theory. It is also notable that the standard theory contradicts in the supecurrent carrier mass in the London moment; the predicted mass is an effective mass, while the experimental value is the free electron mass. The above contradictions suggest the necessity for a fundamental revision for the theory of superconductivity. Here we show that the required revision may be achieved by using the Berry phase formalism. It was developed after the establishment of the BCS theory, and provides a way to detect emergent gauge fields. A self-referencing phase factor on the wave function detected by the Berry phase formalism explains the supercurrent generation in the conventional and cuprate superconductors. It gives rise to a gauge field that enables the gauge symmetry breaking in the standard theory interpretation.

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