论文标题
QCD临界点附近的分散和抑制声音
Dispersion and suppression of sound near QCD critical point
论文作者
论文摘要
我们使用了配备有状态方程的二阶相对论流体动力学，其中包括研究相对论QCD流体中扰动传播的关键点。已经得出了声波的分散关系，以确定QCD临界终点（CEP）附近流体中扰动的命运。我们观察到，流体在CEP处发出声音波长的阈值，这意味着此时，扰动的所有模式都消失了。已经讨论了在临界点附近抑制声音的某些后果。
We have used second order relativistic hydrodynamics equipped with equation of state which includes the critical point to study the propagation of perturbation in a relativistic QCD fluid. Dispersion relation for the sound wave has been derived to ascertain the fate of the perturbation in the fluid near the QCD critical end point (CEP). We observe that the threshold value of the wavelength of the sound in the fluid diverges at the CEP, implying that all the modes of the perturbations are dissipated at this point. Some consequences of the suppression of sound near the critical point have been discussed.
