论文标题

在有限温度下,在$ Q \ bar Q $系统中对混乱的重气密密度和磁场影响

Baryon density and magnetic field effects on chaos in a $Q \bar Q$ system at finite temperature

论文作者

Losacco, N.

论文摘要

研究了有限温度下的$ q \ bar q $系统全息偶的混乱的巴里昂密度和磁场效应。 ADS Reissner Nordstrom背景中的一根串,以及在黑洞地平线附近具有磁场的度量标准中,研究了静态构型的小时依赖性扰动。与地平线的接近性会导致混乱,从而软化增加了化学电位或磁场。还检查了包括DILATON的效果的背景几何形状。对于有限的重子化学势和磁场以及何时将DILATON包含在度量标准中时,满足了表征扰动的Lyapunov指数上的Maldacena,Shenker和Stanford。

Baryon density and magnetic field effect on chaos for the holographic dual of a $Q \bar Q$ system at finite temperature is studied. A string in an AdS Reissner Nordstrom background, and in a metric with magnetic field near the black hole horizon is considered and small time-dependent perturbations of the static configurations are investigated. The proximity to the horizon induces chaos, which is softened increasing the chemical potential or the magnetic field. A background geometry including the effect of a dilaton is also examined. The Maldacena, Shenker, and Stanford bound on the Lyapunov exponents characterizing the perturbations is satisfied for finite baryon chemical potential and magnetic field and when the dilaton is included in the metric.

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