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Just a quick question if I may. The Poynting vector, or the energy flux density, is given by: $mathbf{S} = frac{1}{mu_{0}}(mathbf{E} times mathbf{B})$ So it's the cross product between the...
Asked on 08/01/2020 by Denver Dang
2 answerI am reading arXiv:2006.03606 where through Eq. (1.1) they say that the transition amplitude for collapse of matter from initial state $Psi_{i}$ into a black hole...
Asked on 07/31/2020 by asymptoticallyboundedgluon
1 answerIf mirrors work by deflecting photons by free electrons in surface layer of mirror, so it could be possible to take a glass pane and provide it with extra free...
Asked on 07/31/2020 by toriningen
2 answerThis is a purely speculative question and one that is motivated by discrete computational models of space. In particular, I am wondering if there is a worked out mathematical model...
Asked on 07/31/2020 by pbot
1 answerBackground Many quantities in quantum information can be extended to the case where we consider positive semidefinite operators with trace smaller than or equal to 1. I do not understand...
Asked on 07/31/2020
0 answerKeep your eyes near 0V anode potential - here you can see that the light with maximum frequency has more photoelectric current and that the light with minimum frequency has...
Asked on 07/31/2020 by Torsional constant
1 answerLet $A$ and $B$ represent two normal product of operators and suppose all operators in $A$ commute with operators in $B$. Then is that true...
Asked on 07/30/2020 by y255yan
0 answerIn the kitchen the flame is blue when there is enough oxygen. Is it true that the amount of oxygen has effect in fire color, why blue, why yellow sometimes?...
Asked on 07/30/2020
3 answerI'm studying crystalline solar cell and their working principle, but I still don't completely understand the process. First of all, I understand that we dope a pure crystalline silicon with...
Asked on 07/30/2020 by Tommaso Bendinelli
2 answerI have been reading Senechal's lecture notes on bosonization, and I appreciate the care that he takes in dealing with the zero modes of the massless boson....
Asked on 07/30/2020
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