meta user
network profile
| bio | website | |
|---|---|---|
| location | Russia | |
| age | ||
| visits | member for | 2 years |
| seen | May 5 '12 at 20:03 | |
| stats | profile views | 235 |
Scientist
|
May 30 |
comment |
If there is a meltdown at the Fukushima reactors, would the control rods melt also? world-nuclear.org/info/fukushima_accident_inf129.html |
|
May 28 |
comment |
What can the D-Wave quantum computer do? There is not very boring stuff in list I mentioned, e.g.: Does adiabatic quantum optimization fail for NP-complete problems? N. G. Dickson et al. Phys. Rev. Lett. 106, Issue 5, 050502 arxiv.org/abs/1010.0669 |
|
May 27 |
comment |
What can the D-Wave quantum computer do? They did not promise to do Shor algorithm dwavesys.com/en/publications.html |
|
May 26 |
comment |
Does decoherence explain all instances of wave function collapse? @Marek: You wrote "OP was referring to the discontinuous nature of the collapse" and so I supposed you are going to explain the discontinuous nature using some discontinuous decoherence. As for "never", I am not sure, e.g. if in theories like GRW decoherence continuous? |
|
May 26 |
comment |
Does decoherence explain all instances of wave function collapse? @Marek: There are many definitions of decoherence, but in most of them it is fast, but not discontinuous process. That particular kind of decoherence you are talking about? |
|
May 24 |
comment |
Does decoherence explain all instances of wave function collapse? Yet another point is that decoherence is used to describe diagonalization of density matrix, but collapse is other story – it is “problem of definite outcome”. The last problem is not relevant with most practical applications. An analogue of the problem in classical case is a question – I know that probability of each face of dice is 1/6, but I want now to have a method to find precisely that particular face appears in given experiment. |
|
May 23 |
comment |
Quantum Physics and the Law of Large Numbers Even in classical case law of large numbers should not be formulated in such an abstract way as in the question to avoid paradoxes en.wikipedia.org/wiki/Saint_Petersburg_Paradox |
|
May 23 |
comment |
Historical background of wave function collapse @Marty: I wrote "mechanisms like flecks" (i.e. similar with flecks, sorry my poor English). It is written there "(iii) no positive experimental evidence exists for physical state-vector collapse;" |
|
May 23 |
awarded | Commentator |
|
May 23 |
comment |
Historical background of wave function collapse @Marty: I think it is an answer - you asked about examples and there is written that such examples do not exist. In the paper I cited mechanisms like flecks are also explained. It is all about Sun moving around Earth. I am not voting for such kind of explanations, I just may say, it may not be disproved using current state. |
|
May 23 |
comment |
Historical background of wave function collapse @Marty: Idea of quantum jumps is still alive together with idea of Bohm and some other ideas, but you asked about wave function. |
|
May 23 |
comment |
Historical background of wave function collapse @Marty: Free online version of the paper is here arxiv.org/abs/quant-ph/0506199 but afraid it won't make you happy. My main reason for the cite was to show that there is quite solid view that there are no any experimental evidence of collapse at all. Yet I am not demanding that in future some experiments may not to prove collapse. |
|
May 23 |
comment |
Historical background of wave function collapse @Marty: Then I reading early papers on QM (or even hear some colleagues nowaday) I feel, that at that time collapse was simply “an obvious thing” and so any experiment demonstrated quantum behavior could be considered as proof of collapse. Someone used comparison with idea, that “it is obvious, that Sun moves around Earth, because we see that every day.” |
|
May 23 |
comment |
Historical background of wave function collapse @Marty Green: Why? |
|
May 22 |
answered | Historical background of wave function collapse |
|
May 20 |
revised |
Radio waves and frequency of photon mistype corrected |
|
May 20 |
answered | Radio waves and frequency of photon |
|
May 14 |
answered | What is an observer in quantum mechanics? |
|
May 10 |
answered | Disproof of Bell’s Theorem |
|
May 8 |
comment |
Can spin be infinite? @Qmechanic: Anyway, I would like to see an example of representation you are talking about. |
