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Generalized Lifshitz-Kosevich scaling at quantum criticality from the holographic correspondence

机译:来自全息对应关系的量子临界下的广义Lifshitz-Kosevich缩放

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摘要

We characterize quantum oscillations in the magnetic susceptibility of a quantum critical non-Fermi liquid. The computation is performed in a strongly interacting regime using the nonperturbative holographic correspondence. The temperature dependence of the amplitude of the oscillations is shown to depend on a critical exponent v. For general v the temperature scaling is distinct from the textbook Lifshitz-Kosevich formula. At the "marginal" value v=1/2, the Lifshitz-Kosevich formula is recovered despite strong interactions. As a byproduct of our analysis we present a formalism for computing the amplitude of quantum oscillations for general fermionic theories very efficiently.
机译:我们在量子临界非费米液体的磁化率中表征量子振荡。使用非扰动全息对应在强相互作用的状态下执行计算。振荡幅度的温度依赖性显示为取决于临界指数v。对于一般v而言,温度标度不同于教科书Lifshitz-Kosevich公式。在“边际”值v = 1/2时,尽管相互作用强烈,但恢复了Lifshitz-Kosevich公式。作为我们分析的副产品,我们提出了一种形式主义,用于非常有效地计算一般费米子理论的量子振荡幅度。

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