Split degenerate states and stable p plus ip phases from holography
Split degenerate states and stable p plus ip phases from holography
复制标题
从全息术中分离简并态和稳定的 p + ip 相
DOI：
10.1140/epjc/s10052-017-4643-x
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发表时间：
2017
影响因子：
4.4
通讯作者：
Zeng Hui
中科院分区：
文献类型：
--
作者：
Nie Zhang-Yu;Pan Qiyuan;Zeng Hua-Bi;Zeng Hui
本文研究了复矢量场全息p波模型中的pp超流相。我们发现，在探测极限下，pp相和p波相是同样稳定的，因此p和dip阶可以任意比例混合形成更一般的pp相，它们与p波相和pp相也是同样稳定的.结果表明，系统在超流区具有简并热态。我们进一步研究了在度规上考虑反作用的情况，发现简并基态将被分离为p波相和pp相，并且p波相更稳定。最后，由于p波和pp相到正常相的零级相变的临界温度不同，存在pp相存在而p波相不存在的温度区域。在该区域我们首次发现了稳定的全息pp相。
In this paper, we investigate the pp superfluid phases in the complex vector field holographic p-wave model. We find that in the probe limit, the pp phase and the p-wave phase are equally stable, hence the p andip orders can be mixed with an arbitrary ratio to form more general pp phases, which are also equally stable with the p-wave and pp phases. As a result, the system possesses a degenerate thermal state in the superfluid region. We further study the case on considering the back-reaction on the metric, and we find that the degenerate ground states will be separated into p-wave and pp phases, and the p-wave phase is more stable. Finally, due to the different critical temperature of the zeroth order phase transitions from p-wave and pp phases to the normal phase, there is a temperature region where the pp phase exists but the p-wave phase does not. In this region we find the stable holographic pp phase for the first time.