论文标题
Higgs/振幅模式动力学来自全息图
Higgs/Amplitude Mode Dynamics From Holography
论文作者
论文摘要
二阶相变是由订单参数普遍驱动的，该参数在临界点变得微不足道。同时，涉及顺序参数幅度的集体激发产生了一个差距，该差距平稳地接近临界时的零。我们开发了分析技术，以研究全息系统中这种“希格斯”模式，该系统在有限温度和化学势下进行连续的相变。这使我们能够以间隙顺序的能量尺度研究系统的线性响应。我们以热力学数量和单个传输系数来表达绿色的标量运算符的功能，并根据黑洞地平线数据进行修复。
Second order phase transitions are universally driven by an order parameter which becomes trivial at the critical point. At the same time, collective excitations which involve the amplitude of the order parameter develop a gap which smoothly closes to zero at criticality. We develop analytical techniques to study this "Higgs" mode in holographic systems which undergo a continuous phase transition at finite temperature and chemical potential. This allows us to study the linear response of the system at energy scales of the order of the gap. We express the Green's functions of scalar operators in terms of thermodynamic quantities and a single transport coefficient which we fix in terms of black hole horizon data.
