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My professor defined, given $a$ the lattice spacing the massive propagator according to the Wilson prescription as:$$D_m equiv D+m left( 1-frac{aD}{2} right)$$Then he computes the chrial...
Asked on 08/14/2021 by Ringo_00
0 answerI am having trouble understanding the derivation presented in chapter 2 of Overview of Quantum Field Theory, in which the authors show that the a particular function, denoted as ...
Asked on 08/14/2021
1 answerIn Stefan's law, the radiated energy of a black body with a temperature of $T$ is$q = sigma T^4$Where $sigma$ is Stefan's constant. However, if...
Asked on 08/14/2021 by user3733086
1 answerSuppose an object's velocity is $5 text{m/s}$ at $t = 1$ seconds and $8 text{m/sec}$ at $t = 2$ seconds then the acceleration here...
Asked on 08/14/2021 by rahul amare
3 answerI am trying to calculate the impulse of an object that is thrown against a wall. Problem is, to calculate the impulse one needs to know not just the force,...
Asked on 08/14/2021 by Sophia Lily
3 answerThe ratio between the supercond. gap and the critical temperature is said to be equal to a constant in BCS theory. Is it true only for s-wave supcond (e.g. pairs...
Asked on 08/14/2021 by Derrick Rossi
0 answerMy question is regarding a famous publication by Sommerfeld and Runge, see the translation from the original German here 1. I am quoting in full the last...
Asked on 08/14/2021
0 answerI'm having quite the problem connecting all these concepts, so apologies for the lengthy post. Complex Fields and Feynman propagators Let $psi$ denote a complex field. Then, after quantization,...
Asked on 08/14/2021
1 answerOkay quick question... why is it that when galaxies group together in superclusters they form a sort of branch-like shape? I personally would think they’d all just group together in...
Asked on 08/14/2021 by PythonerLMAO
1 answerSuppose I have a coordinate system, call it $S$, in which an observer $O$ is not moving, and $O'$ is moving with constant velocity and another coordinate...
Asked on 08/14/2021
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