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Consider the following two situations:One can define a stress energy for AdS which matches with the expectation value for the CFT stress tensor.Consider bulk metric perturbations of...
Asked on 02/11/2021 by Michael Williams
0 answerIn a wikipedia article about rotating frames is written: $$ frac{d}{dt} hat{u} = Omega times hat{u}$$ What exactly is the intuition behind this equation? I seek a physical explanation...
Asked on 02/11/2021
2 answerA common (but, as I think, incomplete) description of the uncertainity principle is the following:You cannot determine a particle's momentum and position at high accuracy at the same timeIt could...
Asked on 02/11/2021
2 answerSuppose we define a predicate $L$ as "is alive." We then take Schrödinger's cat, $c$, and put it in its box and wait for a time for it...
Asked on 02/11/2021
0 answerThere is a standard diagram for deriving time dilation in special relativity. So say there's a ship in deep space with observer O' in inertial reference frame S' moving to...
Asked on 02/11/2021
1 answerRecently, there was a rapid communication published in Phys.Rev.D (PRD 83, 021502), titled "Gravity is not an entropic force", that claimed that an experiment performed in...
Asked on 02/11/2021 by Vagelford
6 answerI would like to check whether my analogy is right and ask some related questions. So, I am studying Thermodynamics right now and there are many calculus techniques are used...
Asked on 02/11/2021
2 answerLet's say I want to calculate the height of a thrown ball: Let $x''(t)=-g$ and $x(0)=x(T)=0$ and $x'(0)=v_0$. One could then integrate 2 times and it is...
Asked on 02/10/2021 by manuel459
2 answerI don't understand the following statement from my notes: "A fourth active neutrino is not allowed by the invisible width of the $Z$-boson to which it would contribute as...
Asked on 02/10/2021
2 answerSuppose an artificial satellite is launched to orbit the moon. Ignore 3-body problem issues, just assume it follows a roughly titled elliptical orbit relative to the plane cutting through earth's...
Asked on 02/10/2021 by abnry
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