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Quantum Channels in Quantum Gravity · Around

2014

Quantum Channels in Quantum Gravity

Rangamani, Mukund, Rota, Massimiliano

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The black hole final state proposal implements manifest unitarity in the process of black hole formation and evaporation in quantum gravity, by postulating a unique final state boundary condition at the singularity.

We argue that this proposal can be embedded in the gauge/gravity context by invoking a path integral formalism inspired by the Schwinger-Keldysh like thermo-field double construction in the dual field theory.
This allows us to realize the gravitational quantum channels for information retrieval to specific deformations of the field theory path integrals and opens up new connections between geometry and information theory.

Built on

D. Marolf, Holography without strings?
Original
1977
Earlier work this paper cites.
C. Herzog and D. Son, Schwinger-Keldysh propagators from AdS/CFT correspondence
2003
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G. T. Horowitz and J. M. Maldacena, The Black hole final state
2004
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D. Gottesman and J. Preskill, Comment on ‘The Black hole final state’
2004
Earlier work this paper cites.

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Then

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