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Working through chapters 6 through 8 in Srednicki's "quantum field theory", I am having some trouble conceptually understanding what is happening when we take time ordered products of operators in...
Asked on 10/29/2021
1 answerI got this question in school:Explain, based on the properties of an ideal gas, why the ideal gas law only gives good results for hydrogen.We know that the ideal gas...
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3 answerI have recently been reading literature on geometric constructions of representations of affine Lie algebras by Nakajima and others. In particular, the representations arise as cohomologies of moduli...
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1 answerThe Meissner effect expels magnetic field lines in a super conductor, see the picture below. Left is normal conducting, right is the superconducting state. ...
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1 answerI am reading material related to statistical physics, and I am having a problem understanding why we care about the notions of distinguishably and indistinguishability. I have found What...
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2 answerThe planck length is considered by many to be a lower bound of the scale where new physics should appear to account for quantum gravity.The reasoning behind, as far...
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3 answerMy Background: In high school, I completed AP Physics C Mechanics and Electricity and Magnetism. In my first year of undergrad, I completed a course on Newtonian Mechanics and a...
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3 answerI was reading this article from Ethan Siegel and I got some doubts about a sentence about entropy, specifically when Ethan explains the irreversibility of the conditions of...
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9 answerIt is well known, how to construct Einstein gravity as gauge theory of Poincare algebra. See for example General relativity as a gauge theory of the Poincaré algebra. There...
Asked on 10/29/2021
1 answerIn the book called Electricity and magnetism by Purcell, in page-240, he writes that Q in a surface is defined as $$ Q = epsilon_{o} int_{partial S(t)} vec{E} cdot...
Asked on 10/29/2021 by User688539
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