Speaker
Description
We analyze the dynamics of a static open string in a general stationary spacetime, which can represent a heavy quark-antiquark pair within the holographic framework or effective theory. We establish that for a simple U-shaped string with only radial dependence on the space string coordinate, the string profile is generally not symmetric about its turning point, and the symmetry restores only for backgrounds with $G_{00} G_{pr} - G_{0p} G_{0r} = 0$. Consequently, such asymmetric strings directly probe a possibility of the parity violation in the quark-antiquark interaction. Nevertheless, we identify a wide family of metrics for which the symmetry is preserved, enabling a direct isolation of the linear-in-distance term in the static interquark potential for simple symmetric string configurations, even in non-diagonal backgrounds. Applying the holographic framework, we further study the Rindler-AdS spacetime dual to an accelerated $\mathcal{N}=4$ super Yang-Mills plasma.
We show that the distance between quarks decreases, the static potential between them increases, and the deconfinement phase transition temperature increases with an acceleration $a$. However, we show that an acceleration-scaled potential, $aV$, as a function of the acceleration-scaled distance, $aL$, does not depend on the certain value of the acceleration.
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