Spiraling string in Gauss–Bonnet geometry

Abstract

In this paper, we consider a spiraling string falling in the bulk with Gauss−Bonnet geometry that is holographically dual to a heavy particle rotating through a hot plasma at finite coupling. One finds such interesting simple problem provides a novel perspective on different channels of the energy loss in the corresponding strongly coupled theory. Depends on the sign of the coupling, one observes that the influence of finite coupling on total energy loss and contribution of drag force and radiation channels appears as a shift on curves with respect to the plasma with infinite coupling. Also we found that crossover between regime in which drag force contribution is predominant to regime in which energy loss is due to radiation, does not depend on the Gauss−Bonnet coupling.

Holographic Schwinger effect in a rotating strongly coupled medium

“…Actually, AdS/CFT can be as insightful in this issue and various observables or quantities have already been studied. Such as drag force [32][33][34], jet quenching parameter [35,36], energy loss [37][38][39], phase transition [40] and free energy [41].…”

“…Certainly, there is little hope of obtaining a significant correction owing to the angular velocity in current experiments; however, this may be observed in the near future. Moreover, AdS/CFT can be as insightful within this is-sue, and various observables and quantities have already been studied, such as drag force [32][33][34], the jet quenching parameter [35,36], energy loss [37][38][39], phase transition [40], and free energy [41]. Inspired by this, we investigate the effect of angular velocity on the Schwinger effect in a deformed AdS black-hole background.…”