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seen May 26 at 21:17

May
23
comment Minimum connectivity required for mean field to be a good approximation?
@YvanVelenik I am mainly interested in good approximate values of the free energy and the magnetization. I edited the question to add this. If you are willing to add some details, you should post your first comment as an answer.
May
23
revised Minimum connectivity required for mean field to be a good approximation?
added 176 characters in body
May
23
accepted The “replica trick” initial formula?
May
23
revised Minimum connectivity required for mean field to be a good approximation?
edited title
May
22
asked Minimum connectivity required for mean field to be a good approximation?
May
9
comment The “replica trick” initial formula?
@AntonioRagagnin fixed.
May
9
revised The “replica trick” initial formula?
added 11 characters in body
May
9
revised The “replica trick” initial formula?
added 5 characters in body
May
9
asked The “replica trick” initial formula?
Apr
12
awarded  Yearling
Mar
18
comment Double double-slit experiment
As for the photon that you do measure, it loses the entanglement with the other photon after the measurement. And you lose the interference pattern after determining the slit through which it went.
Mar
18
comment Double double-slit experiment
I don't understand your argument. Why you say that the spatial superposition is built up during the evolution of the photons, and why this loses the entanglement? The fact that there's an uncertainty $\Delta x$ means that the second photon (the one you didn't measure) is in a superposition of states spreading through some spatial region on the order of $\Delta x$. If this spatial region is large enough as to include both slits, you have an interference pattern.
Mar
18
comment Double double-slit experiment
+1 Good point. But I think that in the first case there should be only one interference pattern, not both. After determining through which slit the measured photon went, I'll still be ignorant as to the slit used by the second photon. So in this case I destroy the interference pattern of the measured photon (because I know which slit it used), but I still see the other interference pattern (because $\Delta x$ doesn't let me determine the slit of the non-measured photon from the slit of the measured photon).
Mar
13
revised Double double-slit experiment
added 150 characters in body
Mar
13
comment Double double-slit experiment
@CarlWitthoft "see recent experiments which seem to show that a particle's quantum state can be "found" in one slit while the particle is "seen" in the other." .... can you provide some references?
Mar
13
asked Double double-slit experiment
Jan
15
comment Consequences of the new theorem in QM?
What is GRW? Thanks.
Jan
8
awarded  Popular Question
Jan
1
awarded  Popular Question
Dec
17
accepted Does an electric field create a pH gradient?