Quantum physics of black holes: A superconducting perspective

We establish an analogy between superconductor-metal interfaces and the quantum physics of a black hole. We show that the metal-superconductor interface can be thought of as an event horizon and Andreev reflection from the interface is analogous to the Hawking radiation in black holes, giving a unitary description of black hole dynamics. Quantum information transfer can be described with Andreev reflection and a final state projection model similar to Horowitz-Maldacena, and Hayden and Preskill's description of a black hole final state, where the black hole is described as an information mirror. The analogy between Crossed Andreev Reflections and Einstein-Rosen bridges is also discussed. Given these established connections, we conjecture that the final quantum state of a black hole is the Bardeen-Cooper-Schrieffer ground state wavefunction.