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Physics Stack Exchange users whose comments are worth studying include Lubos Motl and Ron Maimon (now at http://www.quora.com/Ron-Maimon and http://www.physicsoverflow.org/user/Ron+Maimon). Also see http://arxiv.org/abs/hep-ph/0207124 for a review of physics since the standard model.


Nov
18
comment General Relativity field equation solution and geodesic equation solution
@DamonBlevins: letting you know there's still some discussion and links here.
Nov
17
comment General Relativity field equation solution and geodesic equation solution
I am agnostic as to whether the best answer to Damon's particular question would be self-contained, or would link to external resources. Also he might be better off asking at some place like physicsforums.com, so he can have more of a discussion.
Nov
17
comment General Relativity field equation solution and geodesic equation solution
@KyleKanos: in this case a person can link to relevant derivations, e.g. thephysicsforum.com/special-general-relativity/….
Nov
16
comment General Relativity field equation solution and geodesic equation solution
btw if this question never gets re-opened, I invite Damon to email me and I will answer it privately.
Nov
16
comment General Relativity field equation solution and geodesic equation solution
My point was that "too broad" might have been a valid criticism of a question about solving the EFE in general (though it could be answered by providing references), but Damon's question was quite specific.
Nov
16
comment General Relativity field equation solution and geodesic equation solution
@KyleKanos: what I said was, "it's about solving the EFE for one extremely simple scenario". I contrasted "solving the EFE in general" with "solving the EFE for one extremely simple scenario"...
Nov
15
comment General Relativity field equation solution and geodesic equation solution
The absolutely briefest answer would be to say that since the electron is engaged in uniform motion, we can change to a reference frame where it is at rest. So we could just consider GR for a point mass at rest.
Nov
15
comment General Relativity field equation solution and geodesic equation solution
@Kyle Kanos. I saw your first sentence. But his question isn't about solving the EFE in general, it's about solving the EFE for one extremely simple scenario. No-one has to write a chapter...
Nov
12
comment General Relativity field equation solution and geodesic equation solution
"This appears to be way too broad a question to be justly answered here. You will have to narrow your question down quite a bit to get a good answer." He describes one specific physical situation and asks for a worked solution. How is that "too broad"?
Nov
10
comment Is everything made of space?
"unpublished personal theory"... The idea that everything is just made of space is part of physics history (e.g. the study of "geons"), and you could argue that supergravity as a theory of everything was just a slight generalization of this idea - geometry plus supersymmetry.
Oct
19
comment Philosophical Interpretation of String Theory
What happened to the bounty on this question? It still had days to run.
Oct
17
comment Is it possible to make superpartner of Standard Model live in Mirror World?
My own idea was physics.stackexchange.com/questions/27421/… ... which could be analyzed using modification of Polonsky's framework perhaps.
Oct
17
comment Is it possible to make superpartner of Standard Model live in Mirror World?
There is some recent work on the possibility that N=2 superpartners of gauge bosons could be detectable motls.blogspot.com/2011/11/could-nature-lhc-prefer-n2.html ... also see arxiv.org/abs/1403.5951
Oct
17
comment Is it possible to make superpartner of Standard Model live in Mirror World?
Most phenomenologists would say that N=2 susy is ruled out because so-called en.wikipedia.org/wiki/Oblique_correction to SM prediction (see the paper I linked in my answer) is not observed.
Oct
17
comment Is it possible to make superpartner of Standard Model live in Mirror World?
For references: physicsforums.com/threads/…
Oct
14
comment Is it possible to make superpartner of Standard Model live in Mirror World?
Both models have mirror particles but the details are different, e.g. Polonsky has susy and Berezhiani doesn't; and, in Berezhiani the visible sector and the mirror sector only interact via gravitation, whereas Polonsky has a general framework allowing for a variety of inter-sector interactions.
Oct
14
comment Is it possible to make superpartner of Standard Model live in Mirror World?
btw mirror symmetry here refers to a kind of parity symmetry, and not en.wikipedia.org/wiki/Mirror_symmetry_%28string_theory%29 which is far more elaborate.
Oct
14
comment Is it possible to make superpartner of Standard Model live in Mirror World?
This is a refinement of the question physics.stackexchange.com/questions/141072/… ... if one is to be closed as a duplicate, it might be better to close the old one, since this new version makes the intent of the question clearer.
Sep
16
comment Was Max Born the first to notice a connection between quantum mechanics and randomness?
@CuriousOne - orthodox QM for more than 80 years has been, the wavefunction evolves deterministically according to Schrodinger's equation, until an observation is made, at which point the wavefunction jumps RANDOMLY to some eigenstate of the observable, with a probability equal to ... blah blah, I'm sure you know this.
Sep
16
comment Was Max Born the first to notice a connection between quantum mechanics and randomness?
@CuriousOne: Suppose I'm going to measure some observable and I start with a superposition of eigenstates, |x>+|y>. According to QM, the system can start in the state |x>+|y>, and then end up in the state |x> or the state |y>. If it was completely deterministic, there would only be one possible end state.