空腔中的全息石墨烯
Holographic Graphene in a Cavity
摘要：
EM相互作用的有效强度可以通过将场限制在腔中来控制，并且这些效应可以用于将石墨烯推入强耦合状态。研究了紧致空间中的类D3/Probe D5系统，讨论了双镜腔的引力对偶。我们表明，共形对称破缺长度尺度的引入在单个D5片上引入了质量间隙。双层结构显示层间激子凝聚。如果施加足够强的磁场，则存在远离激子凝聚的一级相变。最后，我们绘制出这些系统的相位结构在一个腔的存在下，镜面反射的探针-一个质量间隙可能会形成通过激子凝聚与镜像。
英文摘要：
The effective strength of EM interactions can be controlled by confining the fields to a cavity and these effects might be used to push graphene into a strongly coupled regime. We study the similar D3/probe D5 system on a compact space and discuss the gravity dual for a cavity between two mirrors. We show that the introduction of a conformal symmetry breaking length scale introduces a mass gap on a single D5 sheet. Bilayer configurations display exciton condensation between the sheets. There is a first order phase transition away from the exciton condensate if a strong enough magnetic field is applied. We finally map out the phase structure of these systems in a cavity with the presence of mirror reflections of the probes - a mass gap may form through exciton condensation with the mirror image.
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