A Classical String in Lifshitz-Vaidya Geometry

作者：Hajilou A^*; Ali Akbari M; Charmchi F

来源：European Physical Journal C, 2018, 78(5): 424.

DOI：10.1140/epjc/s10052-018-5903-0

We study the time evolution of the expectation value of a rectangular Wilson loop in strongly anisotropic time-dependent plasma using gauge-gravity duality. The corresponding gravity theory is given by describing time evolution of a classical string in the Lifshitz-Vaidya background. We show that the expectation value of the Wilson loop oscillates about the value of the static potential with the same parameters after the energy injection is over. We discuss how the amplitude and frequency of the oscillation depend on the parameters of the theory. In particular, for the transverse case, by raising the anisotropy parameter, we observe that the amplitude and frequency of the oscillation increase. In the longitudinal case, although the amplitude of the oscillation increases for larger values of anisolropy parameter, the frequency is independent of anisotropy parameter.

• 出版日期2018-5-28