论文标题
非Fermi液体超导性的热效应
Thermal effects in non-Fermi liquid superconductivity
论文作者
论文摘要
当包括虚拟静态玻色子的热效应时，我们重新审视超导性和量子关键性之间的相互作用。这些贡献是由在热圈上压缩的有效理论产生的，即使在较小的温度下，也会强烈影响场理论预测。我们认为它们在多种非Fermi液体行为模型中无处不在，并且通常会产生对超导不稳定的参数抑制。我们将这些想法应用于$ d = 2 $空间尺寸的非弗米液体，通过将费米表面耦合到Landau抑制的软玻色子获得。扩展了针对$ d = 3-ε$尺寸开发的先前方法，我们确定了动力学和相图。它具有裸量子临界点，由连续的无限级阶从具有强大的非Fermi液体校正的超导阶段隔开。我们还强调了这些效应与（数值）实验对非fermi液体的相关性。
We revisit the interplay between superconductivity and quantum criticality when thermal effects from virtual static bosons are included. These contributions, which arise from an effective theory compactified on the thermal circle, strongly affect field-theoretic predictions even at small temperatures. We argue that they are ubiquitous in a wide variety of models of non-Fermi liquid behavior, and generically produce a parametric suppression of superconducting instabilities. We apply these ideas to non-Fermi liquids in $d=2$ space dimensions, obtained by coupling a Fermi surface to a Landau-damped soft boson. Extending previous methods developed for $d=3-ε$ dimensions, we determine the dynamics and phase diagram. It features a naked quantum critical point, separated by a continuous infinite order transition from a superconducting phase with strong non-Fermi liquid corrections. We also highlight the relevance of these effects for (numerical) experiments on non-Fermi liquids.
