Not one bit of de Sitter information
| Authors |
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|---|---|
| Publication date | 2008 |
| Journal | The Journal of High Energy Physics |
| Volume | Issue number | 2008 | 9 |
| Pages (from-to) | 041 |
| Number of pages | 8 |
| Organisations |
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| Abstract | We formulate the information paradox in de Sitter space in terms of the no-cloning principle of quantum mechanics. We show that energy conservation puts an upper bound on the maximum entropy available to any de Sitter observer. Combined with a general result on the average information in a quantum subsystem, this guarantees that an observer in de Sitter space cannot obtain even a single bit of information from the de Sitter horizon, thereby preventing any observable violations of the quantum no-cloning principle. The result supports the notion of observer complementarity. |
| Document type | Article |
| Published at |
https://doi.org/10.1088/1126-6708/2008/09/041
(Final published version)
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