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I have been studying Irodov's problem book. There are a lot of good problems that challenge conceptual knowledge, and so I have to ask somebody for a qualitative answer. I...
Asked on 08/19/2020 by Knight1805
2 answerI want to know how to write the propagation amplitude of a 2 point closed loop in scalar quantum field or QED (i think it should be even possible as...
Asked on 08/19/2020
0 answerI am learning about edge states at high magnetic field (Quantum ballistic sample). What I understand so far from it is that at high magnetic field, Landau states arise. ...
Asked on 08/19/2020 by user104662
2 answerIn some literature, it seems that there is only the right circular polarized spin-wave in a ferromagnet. And there are left and right circular polarized spin-waves in an antiferromagnet in...
Asked on 08/18/2020 by ZJX
0 answerI just started studying field theory and general relativity, and when reading paper titles I often see the word decoupling coming up. My intuition is that there must be a...
Asked on 08/18/2020 by Ballanzor
0 answerImagine an object that wants to move at a speed $v$ trough a fluid.I was thinking that when i ride a bike, there is generally a speed at...
Asked on 08/18/2020
2 answerWhen an aluminum plate is placed between two wires (lying parallel to each other), it doesn't change the repelling nor attracting force between the wires when a current is passing...
Asked on 08/18/2020 by Marijn
2 answerI have a few doubts about the canonical ensemble. Let's consider a system A in contact with a heat reservoir. 1) To derive the probability of the system being...
Asked on 08/18/2020
2 answerI've been working on numerically solving the Ising model in a study of phase transitions, but I'm having difficulty finding material to help me discuss the results. I'm studying spontaneous...
Asked on 08/17/2020 by ConfusedPleb
2 answerThe assumption that a fluid is incompressible seems to be an extremely common (and useful!) approximation to model fluids. I'm wondering what physical properties of a fluid make it approximately...
Asked on 08/17/2020 by vmist
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