Speaker
Ms
Rin Takada
(The University of Tokyo)
Description
We point out a new phase structure of imaginarily rotating hot QCD: at zero quark chemical potential it has a phase in which charge conjugation $C$ is spontaneously broken and rotation alone induces an imaginary quark number density. At imaginary angular velocity $2\pi$ the existence of this phase is exact: the theory at $2\pi$ is nonrotating QCD at the Roberge-Weiss point, where $C$ is known to break above the endpoint temperature. On the rotation axis, the high-temperature one-loop potential of QCD reveals a finite window around $2\pi$ with two distinct transitions not fixed by the exact correspondence: a second-order $C$-breaking transition and a first-order locking of the holonomy onto the center elements within the broken phase.
Author
Ms
Rin Takada
(The University of Tokyo)