Holographic charge density waves
Holographic charge density waves
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DOI：
10.1103/physrevd.87.126008
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发表时间：
2013-03
影响因子：
5
通讯作者：
Aristomenis Donos;J. Gauntlett
中科院分区：
文献类型：
--
作者：
Aristomenis Donos;J. Gauntlett
结果表明，在有限电荷密度下，强耦合全息物质可以出现电荷密度波位相，在保持时间反转和宇称不变性的同时自发地打破平移不变性。我们证明了在一般时空维度的爱因斯坦-麦克斯韦-膨胀子理论中，这样的位相是可能的。我们还讨论了当存在与第二矢量场的附加耦合时的相关空间调制相位，可能具有非零质量。我们讨论了这些结构和其他结构如何与新的空间调制基态相关联。
We show that strongly coupled holographic matter at finite charge density can exhibit charge density wave phases which spontaneously break translation invariance while preserving time-reversal and parity invariance. We show that such phases are possible within Einstein-Maxwell-dilaton theory in general spacetime dimensions. We also discuss related spatially modulated phases when there is an additional coupling to a second vector field, possibly with non-zero mass. We discuss how these constructions, and others, should be associated with novel spatially modulated ground states.