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If I am not mistaken, an incoherent light wave is a light wave made out of waves with random phases: it consist of photons with random phases. Now I...
Asked on 05/14/2021 by Simon DK
1 answerI'm coming across the notation $^1 S_0$, $^3 P_1$, $^1D_2$ etc. in relation to particle states. What do the two numbers and the letter represent? I've tried...
Asked on 05/14/2021 by P4PL4
1 answerThe Higgs mechanism can be used to produce massive spin $1$ particles in a unitary and renormalizeable way. Showing that the gauge fields gain a mass is always done...
Asked on 05/14/2021
1 answerThis is a question, kind of related to my previous question but is here as a stand-alone. I've been reading the book 'essential relativity' by Rindler and have a...
Asked on 05/14/2021
1 answerI am trying to derive commutation relation of Lindblad Superoperator relations.They are defined as:$$cdot a^{dagger}a=mathcal{L}$$$$a^{dagger}acdot =mathcal{R}$$$$acdot a^{dagger}=mathcal{M}$$ I try to derive this commutation...
Asked on 05/14/2021 by Andris Erglis
0 answerAlthough the observed universe is considered homogeneous, there are small local inhomogeneities in it. These are galaxies with higher density, and voids with lower density. In the region of galaxies,...
Asked on 05/14/2021
0 answerI'm trying to quantify some intuition I have about friction and rocket sled.Suppose a rectangular sled with length $l$, weight...
Asked on 05/14/2021 by Henry Oh
2 answerI'm looking for an equation that will tell me how long it takes for two gases at two different pressures to equalize their pressures. As a more concrete question, Container...
Asked on 05/14/2021
4 answerIn canonical references for learning quantum information, such as Nielsen's Quantum Computation and Quantum Information and Preskill's lecture notes, the focus seems to be on systems with finite-dimensional Hilbert spaces....
Asked on 05/14/2021 by Rodo
0 answerIn David Tong's lecture notes on quantum field theory, at the bottom of page 23, we are applying the quantisation of the harmonic oscillator to the field...
Asked on 05/14/2021
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