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Mar
3
comment Wave function of the universe - universes similar to ours
Similar but slightly less probable. But where is this image from?
Mar
3
comment Do any quantum gravity theories deal with closed timelike curves?
I suggest looking at work on CTCs in AdS3
Mar
3
comment Femionic vacuum expectation value
A fermionic VEV would spontaneously break Lorentz invariance: physics.stackexchange.com/a/108114/1486
Feb
27
comment How can we conciliate the structure of a proton and Coulomb/strong force?
@user104 Classically, if you have three charges close to each other, at a distance the field will still be almost homogeneous. According to physics.stackexchange.com/questions/132881/… the deviation from homogeneity could be described by an octupole moment.
Feb
27
comment Formation of a hydrogen atom from a proton and electron - detailed quantitative description
Also that there should be no initial entanglement between the particles (or with the electromagnetic vacuum).
Feb
27
comment Formation of a hydrogen atom from a proton and electron - detailed quantitative description
@Timaeus Yes, I meant proton... Basically I meant what you called coarsening.
Feb
27
comment Formation of a hydrogen atom from a proton and electron - detailed quantitative description
@Timaeus I would think that the initial state here is something like a product of two localized wavepackets, one for the electron and one for the photon
Feb
26
revised How can we conciliate the structure of a proton and Coulomb/strong force?
deleted 6 characters in body
Feb
26
comment How is a human voice unique?
Vocal cords, lungs... The features of your voice come from your body and how you use it.
Feb
26
answered How can we conciliate the structure of a proton and Coulomb/strong force?
Feb
26
answered Is the correspondence between our universe and cellular automata in the presence of time travel just co-incidence?
Feb
24
comment What's the nature of intraction between hydrogen atoms in the interstellar medium?
Would you say that the main influences on their motion are stellar and galactic gravitational fields, and shockwaves? (e.g. from supernovas)
Feb
16
answered Is dark matter really there?
Feb
16
answered What do sun spots look like under the surface of the Sun?
Feb
13
comment String models of particle physics
@kid "As of now, we don't know how..." what? There have been numerous realizations of the MSSM in string phenomenology.
Feb
13
comment Is dark matter really there?
Google "dark matter" "frame dragging" to see discussions of this idea.
Feb
13
answered String models of particle physics
Feb
12
comment Can we see the famous black hole pair or its effect on other stars in any other means but LIGO?
Fermi gamma-ray telescope may have detected an associated gamma ray burst.
Feb
9
comment Multiple Intersecting Universes
@David physics.stackexchange.com/questions/144337/…
Feb
8
comment Why is it difficult for 2 black holes to merge?
Serban, please give a source for this claim