https://doi.org/10.1140/epjc/s10052-020-8206-1
Regular Article - Theoretical Physics
High temperature behavior of non-local observables in boosted strongly coupled plasma: a holographic study
1
Centre for High Energy Physics, Indian Institute of Science, C.V. Raman Avenue, Bangalore, 560012, India
2
Department of Physics, Indian Institute of Technology Ropar, Rupnagar, Punjab, 140001, India
3
Department of Mechanical Engineering, University of Turkish Aeronautical Association, 06790, Ankara, Turkey
4
Department of Physics, Usak University, 64200, Usak, Turkey
* e-mail: s.chakrabortty@iitrpr.ac.in
Received:
23
May
2020
Accepted:
4
July
2020
Published online:
23
July
2020
In this work, we perform a holographic analysis to study non local observables associated to a uniformly boosted strongly coupled large N thermal plasma in d-dimensions. In order to accomplish the holographic analysis, the appropriate dual bulk theory turns out to be 
dimensional boosted AdS-Schwarzschild blackhole background. In particular, we compute entanglement entropy of the boosted plasma at high temperature living inside a strip geometry with entangling width l in the boundary at a particular instant of time. We also study the two-point correlators in the boundary by following geodesic approximation method. For analyzing the effect of boosting on the thermal plasma and correspondingly on both non local observables, we keep the alignment of the width of region of interest both parallel and perpendicular to the direction of the boost. We find our results significantly modified compared to those in un-boosted plasma up to the quadratic order of the boost velocity v. More interestingly, the relative orientation of the boost and the entangling width play a crucial role to quantify the holographic entanglement entropy in the boundary theory. The breaking of rotational symmetry in the boundary theory due to the boosting of the plasma along a specific flat direction causes this interesting feature.
© The Author(s), 2020
