Timeline for How Does Random Noise Typically Look?
Current License: CC BY-SA 2.5
3 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Nov 20, 2009 at 9:15 | comment | added | Gil Kalai | I agree that this is not realistic - neither in the quantum case neither in the classic case. (At least not without much further explanation.) I only asked about the factual matter: what is the situation in the classical case. It was strange for me that I do not know the answer (and not precisely the question) for a question which was easy in the quantum case. It is still not clear to me how to do the computation for a random stochastic map and what the answer is. | |
| Nov 16, 2009 at 23:34 | comment | added | Greg Kuperberg | If you randomly choose a unitary operation and then restrict to those unitaries with a low average qubit error rate, then as Gil says most errors arise as catastrophic loss. If you do the same thing with a randomly chosen stochastic map, using uniform measure as you say, then I think that you get the same catastrophic loss phenomenon. As I said, this is not considered a realistic noise model either classically or quantumly. Specifically, you are conditioning on a very rare property. | |
| Nov 15, 2009 at 13:17 | history | answered | Steve Flammia | CC BY-SA 2.5 |