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Question Is there way to simulate a 2D Ising model with anisotropic coupling parameter $J_{ij}$ and zero external field using Wolff algorithm? Particularly, I am looking for when coupling...
Asked on 01/27/2021
0 answerIntroductionFor the Klein Gordon Field, the equations of motion are described by the equation $$(partial_{mu}partial^{mu} + m^2)phi(vec{x},t)=0$$ Which when the field is expressed as a Fourier transform of the...
Asked on 01/27/2021 by Joshua Pasa
0 answerI would like to prove mathematically that the electric field produced by a punctual charge is isotropic and radial, i.e. $$vec{E}(r,phi,theta)=E(r)vec{e}_rtag{1}$$ I think that this statement is visually...
Asked on 01/27/2021
1 answerThe Lorentz force law is $$vec{F}=q(vec{E}+vec{v}timesvec{B}).$$In tensor formulation, it is$$f^mu=qU^lambda {F_lambda}^mu.$$ In Sean Carroll's spacetime and geometry book, pg. 32-33, he said thatthe...
Asked on 01/27/2021 by TaeNyFan
0 answerThe Hamiltonian matrix of particle subject to a central potential is described by $$H=begin{pmatrix}H_{11} & H_{12} & H_{13} & H_{14}H_{21} & H_{22} & H_{23} & H_{24}...
Asked on 01/27/2021 by Vinícius Frehse
0 answerI started reading the lecture notes on Path integral formulation by Ashoke Das. At the very first page of the introduction chapter, he says that - "a theory describing the...
Asked on 01/27/2021 by Samapan Bhadury
1 answerIn string theory, we know three dualities. S-duality: Extension of Electric-magnetic duality, Duality between strongly coupled qft and weakly coupled qft. (One of the typical example is Seiberg duality in...
Asked on 01/27/2021
1 answerWill the displacement current be multiplied by K when a dielectric is placed between the plates of a capacitor. Will its value then be K times the value without dielectric....
Asked on 01/27/2021 by Aditya Roychowdhury
0 answerTwo questions, 2nd to be written separately concerns more difficult problem for motion of extended charge distributions. First: Two point charges q1,q2. Determine motion of q1 using Newton's...
Asked on 01/27/2021
1 answerI was reading about the phase relation between the displacement , velocity and acceleration of a particle executing SHM.I understood that all three differ in phase by π/2 radian respectively...
Asked on 01/27/2021 by user270071
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