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seen Aug 20 at 18:53

May
25
comment Is every quantum measurement reducible to measurements of position and time?
It is interesting that this question has 14 votes, while all 4 answers have 0 votes...
May
13
comment Bell's theorem and why nonlocality is problematic
@RonMaimon Thanks for your reply.
May
11
comment Bell's theorem and why nonlocality is problematic
When you say "... it used to be thought that physics would be too arbitrary," do you mean something like what Einstein says in that paragraph? Are you saying this is 'old fashioned'? If so, can you point me to a good counter-argument?
May
11
comment Bell's theorem and why nonlocality is problematic
That's from "Quantum Mechanics and Reality" ("Quanten-Mechanik und Wirklichkeit", Dialectica 2:320-324, 1948), as cited here (I haven't found an english translation of the full paper)
May
11
comment Bell's theorem and why nonlocality is problematic
"The following idea characterises the relative independence of objects far apart in space, A and B: external influence on A has no direct influence on B; this is known as the Principle of Local Action, which is used consistently only in field theory. If this axiom were to be completely abolished, the idea of the existence of quasienclosed systems, and thereby the postulation of laws which can be checked empirically in the accepted sense, would become impossible." -Einstein
May
11
comment Bell's theorem and why nonlocality is problematic
Ron, are still you listening to this site? You say: "Locality is emphasized, because without locality, it used to be thought that physics would be too arbitrary." I am wondering exactly what you mean here. Recently I found a short paragraph quoted from an Einstein paper:
Apr
30
awarded  Informed
Apr
22
accepted Complete vs General Integral of first order PDE
Apr
21
awarded  Talkative
Apr
20
asked What is Anderson localization? Could someone give an example worked out in detail?
Apr
20
comment Why is information indestructible?
I think he means time evolution is invertible... in other words, +1 @Raskolnikov comment.
Apr
19
revised Mean-field theory and spatial correlations in statistical physics
fixed expectation symbols
Apr
19
suggested approved edit on Mean-field theory and spatial correlations in statistical physics
Apr
18
revised Introduction to Anderson localization
edited tags
Apr
16
accepted Galilean invariance of the Schrodinger equation
Apr
16
comment Can dark matter be relativistic dust?
@zhermes those are not duplicates, but related
Apr
13
comment What is the “direction” of the transition dipole moment? (Understanding Eq. 9.29, Charge and Energy Transfer 3rd Ed, May & Kuhn)
Agree with @michielm. Can you explain? In what setting are the wave functions real? If it isn't real, the unit vector n is a complex vector. What's the meaning of its "direction"?
Apr
12
awarded  Yearling
Apr
11
revised classical-mechanics wiki description
added 159 characters in body
Apr
11
suggested approved edit on classical-mechanics tag wiki