1
vote
1answer
61 views

Question on the preservation of information via mapping to free field states

In Hawking's paper, "Breakdown of predictability in gravitational collapse", the crux of Hawking's argument is as follows: ...,one can extend the principle to treatments in which the gravitational ...
0
votes
0answers
109 views

State of the entangled particles at the event horizon of black hole

Looking through the article of Samir Mathur http://arxiv.org/abs/0909.1038 he assumes that the entangled particles created at the event horizon have all the state ...
15
votes
3answers
113 views

Information Retrieval

This question is motivated by the issue of information retrieval from black holes, but it is essentially a question about quantum information. It is widely believed (in certain circles) that the ...
5
votes
2answers
188 views

Hayden-Preskill informational mirrors and decryption

I do have a question about an assumption made in the very interesting Hayden-Preskill paper of black holes as informational mirrors. Alice throws her top secret quantum diary which is $k$ qubits long ...