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Stringy ER = EPR by Daniel Louis Jafferis; Elliot Schneider is a Physics and Astronomy article available to read on EtoBox.

What is Stringy ER = EPR about?

## Abstract The ER = EPR correspondence relates a superposition of entangled, disconnected spacetimes to a connected spacetime with an Einstein-Rosen bridge. We construct examples in which both sides may be described by weakly-coupled string theory. The relation between them is given by a Lorentzian continuation of the FZZ duality of the two-dimensional Euclidean black hole CFT in one example, and in another example by continuation of a similar duality that we propose for the asymptotic Euclidean AdS~3~ black hole. This gives a microscopic understanding of ER = EPR: one has a worldsheet duality between string theory in a connected, eternal black hole, and in a superposition of disconnected geometries in an entangled state. The disconnected description includes a condensate of entangled folded strings emanating from a strong-coupling region in place of a bifurcation point. Our construction relies on a Lorentzian interpretation of Euclidean time winding operators via angular quantization, as well as some lesser known worldsheet string theories, such as perturbation theory around a thermofield-double state, which we define using Schwinger-Keldysh contours in target space.

Who reads Stringy ER = EPR?

Author

Daniel Louis Jafferis; Elliot Schneider

Publisher

Springer Science and Business Media LLC

Published

2022

Language

EN

Field

Physics and Astronomy (Physical Sciences)