We demonstrate an algorithm for the retrieval of a qubit, encoded in spin
angular momentum, that has been dropped into a no-firewall black hole.
Retrieval is achieved analogously to quantum teleportation by collecting
Hawking radiation and performing measurements on the black hole. Importantly,
these methods only require the ability to perform measurements from outside the
event horizon.Comment: 6 pages v2: modified protocol to discuss total angular momentum,
corrected typos, added references v3: updated with referee feedbac
