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arXiv 1307.7397hep-th
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费米涡旋晶格的晶体几何

Crystalline Geometries from Fermionic Vortex Lattice

M. Reza Mohammadi Mozaffar, Ali Mollabashi

摘要:

本文研究了非零磁场作用下AdS $_2\times R^2$背景上的带电狄拉克费米子。在一定的边界条件下,我们证明了带电费米子可以使背景不稳定,从而自发形成涡旋晶格。我们观察到,由于自旋极化费米子构成的涡旋晶格,反反应溶液中出现了一个电场。该电场可以延伸到UV边界,这导致有限的电荷密度。我们还讨论了由于晶格形成的热力学函数的修正。

英文摘要:

We study charged Dirac fermions on an AdS$_2\times R^2$ background with a non-zero magnetic field. Under certain boundary conditions, we show that the charged fermion can make the background unstable, resulting in spontaneously formation of a vortex lattice. We observe that an electric field emerges in the back-reacted solution due to the vortex lattice constructed from spin polarized fermions. This electric field may be extended to the UV boundary which leads to a finite charge density. We also discuss corrections to the thermodynamic functions due to the lattice formation.

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