Holographic excited states in AdS Black Holes
arXiv:1901.00505 · doi:10.1007/JHEP04(2019)028
Abstract
We have recently presented a geometry dual to a Schwinger-Keldysh closed time contour, with two equal length Euclidean sections, which can be thought of as dual to the Thermo Field Dynamics formulation of the boundary CFT. In this work we study non-perturbative holographic excitations of the thermal vacuum by turning on asymptotic Euclidean sources. In the large- approximation the states are found to be thermal coherent state and we manage to compute its eigenvalues. We pay special attention to the high temperature regime where the manifold is built from pieces of Euclidean and Lorentzian black hole geometries. In this case, the real time segments of the Schwinger-Keldysh contour get connected by an Einstein-Rosen wormhole through the bulk, which we identify as the exterior of a single maximally extended black hole. The Thermal-AdS case is also considered but, the Lorentzian regions become disconnected, its results mostly follows from the zero temperature case.
arXiv comment23 pages, 14 figures, corrections in Sec. 3 and 4, comments added. Version accepted in JHEP
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