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arXiv 0908.1436hep-th
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背景磁场中的全息非费米液体

Holographic Non-Fermi Liquid in a Background Magnetic Field

Pallab Basu, JianYang He, Anindya Mukherjee, Hsien-Hang Shieh

摘要:

我们研究了非零磁场对最近在0903.2477中发现的一类2+1暗非费米液体的影响,并考虑了极端AdS^4黑洞背景中费米探针的性质。在双子AdS^4黑洞几何结构中引入一个类似的费米子探针,我们发现磁场的影响可以并入探针费米子电荷的重新标度中。从这个简单的事实,我们观察到有趣的效果,如逐渐消失的费米面和准粒子峰在大磁场和系统的其他属性的变化。我们还发现了类似于de Haas-van Alphen效应的朗道能级结构和振荡现象。

英文摘要:

We study the effects of a non-zero magnetic field on a class of 2+1 dim non-Fermi liquids, recently found in 0903.2477 by considering properties of a fermionic probe in an extremal AdS^4 black hole background. Introducing a similar fermionic probe in a dyonic AdS^4 black hole geometry, we find that the effect of a magnetic field could be incorporated in a rescaling of the probe fermion's charge. From this simple fact, we observe interesting effects like gradual disappearance of the Fermi surface and quasi particle peaks at large magnetic fields and changes in other properties of the system. We also find Landau level like structures and oscillatory phenomena similar to the de Haas-van Alphen effect.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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