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arXiv · 1708.09370

Quantum teleportation through time-shifted AdS wormholes

Rik van Breukelen·Kyriakos Papadodimas
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Abstract

Based on the work of Gao-Jafferis-Wall and Maldacena-Stanford-Yang, we observe that the time-shifted thermofield states of two entangled CFTs can be made traversable by an appropriate coupling of the two CFTs, or alternatively by the application of a modified quantum teleportation protocol. This provides evidence for the smoothness of the horizon for a large class of entangled states related to the thermofield by time-translations. The smoothness of these states has some relevance for the firewall paradox and the proposal that some observables in quantum gravity may be state-dependent. We notice that quantum teleportation through these entangled states could be used in a laboratory setup to implement a time-machine, which allows the observer to travel far in the future.

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Rik van Breukelen, Kyriakos Papadodimas. 2017-08-30. Quantum teleportation through time-shifted AdS wormholes. https://doi.org/10.1007/jhep08(2018)142

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