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comment Virtual particles and physical laws
So if one used non-perturbative methods to do calculations, there would be no purpose for virtual particles?
Apr
10
awarded  Popular Question
Mar
30
comment Do there exist objects that absorb energy only (and do not give it away)?
Black holes -------------
Mar
29
comment Determinism loophole?
Good then. That's exactly what I'm doing here.
Mar
29
comment Determinism loophole?
I'm not trying to insist on a classical theory -- I learn best by trying to come up with a counterexample and then figuring out what went wrong (I suppose you could call it learning by contradiction?)
Mar
29
asked Determinism loophole?
Mar
29
asked Why is QM maximally predictive?
Mar
23
comment Why have $n$, $\ell$, $m_\ell$, $m_s$ been picked as quantum number symbols *in this order*?
The solutions to electron orbitals can be expressed in terms of equations that take integer parameters. So all valid ψ(r) can be expressed as ψ(n,l,m_l,m_s). The math works out to require that "l" be 0 to n-1, "m_l" be -l to l and "m_s" be -1/2 or 1/2. It makes sense to order them based on the fact that their range depends on the previous number's value (except m_s)
Mar
20
comment Lennard-Jones induced pseudo-molecules
I did a MD simulation once with particles that only interacted vs LJ. Varying σ, ϵ, and temperature led to a variety of clusters forming. The pair correlation functions of these "clustered" systems matched those of liquid or solid PCFs.
Feb
6
comment Why isn't quantum entanglement just a lack of information?
15%? Wouldn't it be 13.55%? (0.05)(0.05)(0.05) + (0.05)(0.95)(0.95) + (0.95)(0.05)(0.95) + (0.95)(0.95)(0.05) = 0.1355
Jan
25
comment Are there any materials that change the electromagnetic wavelength of visible light?
I am not aware of any material that alters the wavelength of a photon during the duration of its existence; however, there are materials that absorb photons of certain wavelengths and then emit photons of new wavelengths: en.wikipedia.org/wiki/Phosphorescence and en.wikipedia.org/wiki/Fluorescence
Jan
21
awarded  Nice Question
Dec
24
awarded  Yearling
Dec
10
comment Is the wave function of a particle re-created after a measurement stops?
> "As an interesting side-note: if you make another measurement of the same observable very quickly after making the first measurement (and I mean VERY quickly), you will get back the same result because the wave-function has not had time to evolve away from that state yet." Is it moreso the fast time evolution of the wavefunction or the decoherence due to the environment that mandates such a quick remeasurement?
Nov
29
awarded  Popular Question
Nov
27
comment Gradient of a two-component field
Perfect. Thanks!
Nov
27
accepted Gradient of a two-component field
Nov
27
revised Gradient of a two-component field
added 174 characters in body
Nov
27
asked Gradient of a two-component field
Nov
25
asked Decomposition of two particle wavefunction into product of single-particle wavefunctions