Timeline for Can string theory get rid of randomness in quantum processes?
Current License: CC BY-SA 3.0
15 events
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Feb 17, 2022 at 18:09 | comment | added | Quillo | Aviad P: If you find "disappointing" QM in its standard interpretation, then you should give a shot to the "hidden variable theory" en.wikipedia.org/wiki/Hidden-variable_theory | |
Dec 18, 2014 at 9:52 | comment | added | CuriousOne | @AviaP.: In QM you can predict the expectation values just fine. At least the situation is no worse than in classical mechanics, and for many types of systems it's even better (integrability throws a giant wrench into the idea that the classical world can be calculated... it can't be). | |
Dec 18, 2014 at 9:52 | history | tweeted | twitter.com/#!/StackPhysics/status/545516946767478784 | ||
Dec 18, 2014 at 9:45 | comment | added | Aviad P. | @CuriousOne - The disappointing part is the inability to definitely predict anything. I would like for there to exist some underlying mechanics which we haven't discovered yet, which provides deterministic results for all processes. In other words, it is disappointing from a computer science perspective (which I am a disciple of) | |
Dec 18, 2014 at 9:42 | comment | added | CuriousOne | @AviadP.: Why is that disappointing? It's most likely the main reason why you are alive, or why there is even a universe. Take QM away and the world wouldn't be able to make a single stable atom. | |
Dec 18, 2014 at 9:40 | vote | accept | Aviad P. | ||
Dec 18, 2014 at 9:38 | comment | added | CuriousOne | No. That's the whole point why we need quantum mechanics. We can not predict which of the possible outcomes a single measurement will have. This seems to be a fundamental limit, not just a shortcoming of our knowledge. | |
Dec 18, 2014 at 9:31 | comment | added | Aviad P. | @CuriousOne - Can my question then apply to the possibility to determine exactly which eigenvalue will arise? | |
Dec 18, 2014 at 9:30 | comment | added | Aviad P. | @Qmechanic - No I was not aware of that, perhaps only vaguely, I will remember that now :) | |
Dec 18, 2014 at 8:43 | answer | added | N. Virgo | timeline score: 5 | |
Dec 18, 2014 at 8:39 | comment | added | CuriousOne | String theory is a special case of quantum theory. It follows the same rules as any other quantum mechanical model. In general, quantum mechanics has very little to do with "randomness". The evolution of quantum states is perfectly continuous. It's only when we do a measurement, that the state of the system is reduced to an eigenvalue of our measurement operator. It is easy to mistake this uncertainty for randomness, but it is logically and mathematically very different. | |
Dec 18, 2014 at 8:36 | comment | added | Qmechanic♦ | Do you know that string theory is a quantum theory? | |
Dec 18, 2014 at 8:35 | review | First posts | |||
Dec 18, 2014 at 8:57 | |||||
Dec 18, 2014 at 8:33 | history | edited | Qmechanic♦ | CC BY-SA 3.0 |
added 31 characters in body
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Dec 18, 2014 at 8:30 | history | asked | Aviad P. | CC BY-SA 3.0 |