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In The Generalized Second Law implies a Quantum Singularity Theorem, Aron C. Wall asserts that an object with a negative ADM mass would produce...
Asked on 12/02/2020 by CuriousDroid
0 answer(This is taken from Introduction to Quantum Mechanics by D. Griffiths, 3rd edition, Problem 6.18 .) If a system has inverse symmetry, we know that [$hat{H},hat{Pi}]...
Asked on 12/02/2020 by AA10
2 answerIn classical orbital mechanics as per Newton/Kepler, the time taken to complete one orbit around a body of mass $M_e$ is: $$T = 2 pi cdot sqrt { frac...
Asked on 12/02/2020 by Avijit
2 answer"Compare this to the eigen functions $e^{-pi x} $ of linear momentum, where we could argue that $p$ had to be real to keep wavefunction bounded as ...
Asked on 12/02/2020 by physicshub
2 answerWhen doing 2d CFTs we typically complexify coordinates and formally consider $mathbb C^2$, with the understanding that, in the end, we are to restrict to the real slice ...
Asked on 12/02/2020 by AccidentalFourierTransform
1 answerConsider any wave packet describing a free particle (so no potential or other forces acting on it). Then it can be shown that $Delta p$ does not change in time....
Asked on 12/02/2020 by Ryker
4 answerSuppose the quark and lepton fields weren't the fundamental fields of Nature, but that a "deeper" Lagrangian connected to a generic model of sub-quarks and-leptons would take over the...
Asked on 12/02/2020
1 answerIn beam optics, the $M^2$ factor is a "catch-all" single number that describes how "good" a beam is, i.e., how close it is to an ideal Gaussian beam, which...
Asked on 12/02/2020 by John W.
0 answerWe have many theories that advocate the particle nature of light. But have we ever observed photons physically? If so: what do they look like? How big are they? If...
Asked on 12/02/2020
6 answerI need to calculate the components of the radiative flux tensor and the pressure tensor, but I am having a little trouble figuring out what the integral should be. The...
Asked on 12/02/2020 by philosophytophysics
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