Effective temperature of nonequilibrium dense matter in holography
Effective temperature of nonequilibrium dense matter in holography
复制标题
全息中非平衡致密物质的有效温度
DOI：
10.1103/physrevd.91.026009
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
Shin Nakamura
中科院分区：
文献类型：
--
作者：
Hironori Hoshino;Shin Nakamura
利用反德西特时空/共形场论对应研究了非平衡定态有效温度的性质。我们考虑非平衡系统与恒定的电流沿着电场，其中的电流是由两个掺杂的电荷和那些对产生的电场。我们发现，如果我们取对产生可忽略不计的极限，则有效温度与朗之万系统的有效温度一致。在很宽的全息模型范围内，电子对产生的效应提高了有效温度，而掺杂电荷产生的电流则有助于降低有效温度。
We study properties of effective temperature of nonequilibrium steady states by using the anti–de Sitter spacetime/conformal field theory () correspondence. We consider nonequilibrium systems with a constant flow of current along an electric field, in which the current is carried by both the doped charges and those pair created by the electric field. We find that the effective temperature agrees with that of the Langevin systems if we take the limit where the pair creation is negligible. The effect of pair creation raises the effective temperature whereas the current by the doped charges contributes to lower the effective temperature in a wide range of the holographic models.