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I have a question about the mechanism that induces permanent current in a superconductor ring. I'm refering to explanations from this source https://www.wiley-vch.de/books/sample/3527403493_c01.pdf on page 12. Background:...
Asked on 12/04/2020 by katalaveino
3 answer2D ising model explains phase transition (Para-ferro). How come a 2-D model explain a system where spins are distributed in all three directions?...
Asked on 12/04/2020 by Neeraj kumar
1 answerI'd like to model some simple molecules using VSEPR. With what functions should I approximate the sigma and pi bond orbitals?A simple Gauss would do it?I'd like to...
Asked on 12/04/2020 by RobertSzili
0 answerDental drills have always been cutting edge technology when it comes to high rotational speeds. According to Wikipedia modern drills reach more...
Asked on 12/04/2020 by A. P.
1 answerIf there are 2 observers in water moving relative to each other as well as to water, they measure different speeds of light. So does time dilation occur for...
Asked on 12/04/2020 by Siddhant Sharma
2 answerHow much energy (watts) from sunlight could arrive to the focal point if we use Jupiter as a gravitational lens? and if we use it as an atmospheric lens by...
Asked on 12/04/2020
1 answerA rigid body motion can be decomposed into translation and rotation. My question is, given a rigid body motion velocities of all points in the body, how to decompose this...
Asked on 12/04/2020 by user138668
2 answerWhile the inflation phase of the universe, expansion was exponential and so the universe was de Sitter-like. So, for a point-like observer, there was a cosmological event horizon. Do this...
Asked on 12/04/2020
0 answerIn the solution for Peskin & Shroeder 2.2 where the Hamiltonian density obtained from the Klein-Gordon Lagrangian is given by:$$ H = pi^* pi + nabla phi...
Asked on 12/04/2020 by David Feng
1 answerI saw the following definition for the partial trace operator:$rho_A=sum_k langle e_k|rho_{AB}|e_krangle$, where $e_k$ is basis for the state space of system $B$.From what I know, in the Dirac notation,...
Asked on 12/04/2020
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