Find answers to your questions about Physics or help others by answering their Physics questions.
For computing instantons contributions from worldsheet torus to target torus, one can evaluate zero modes contribution of genus 1 partition function given by following expression:$$Tr(-1)^FF_LF_Rq^{L_0}bar{q}^{bar{L_0}}= frac{t+bar t}{4pitau_2}sum_{m.n,r,s}expleft[-frac{t}{4tau_2rho_2}|(m+rrho)-bar{tau}(n+srho)|^2-frac{bar t}{4tau_2...
Asked on 01/07/2021 by user44895
0 answerTo find the fine structure of hydrogen using nondegenerate perturbation theory, we choose the eigenstates of L2, S2, J2, and Jz. As stated in Griffiths Introduction to Quantum Mechanics, the...
Asked on 01/07/2021 by yhmilan
1 answerConsider the O$(N)$ model in $d$-dimensions given by: $$L = frac{1}{2} (partial_{mu} phi)^2 - sum_{n} frac{g_{2n}}{(2n)!} phi^{2n} $$ Is there a reference where the beta functions ...
Asked on 01/07/2021
0 answerWe often differentiate them by saying scalar quantity have magnitude while vector have both direction and magnitude. But how's it possible that if an object is moving then it won't...
Asked on 01/07/2021 by Sakshi Singh
1 answerI've read Rovelli's book and papers, but he makes little mention of quantum fields. What is the interaction between fields and his particulate space of loop quantum gravity? ...
Asked on 01/07/2021
1 answerWhile reading doi:10.1016/j.carbon.2012.03.009 , the authors mention three types of Hubbard models within mean-field approximation. The first one describes the electron-electron interaction, and to my understanding is the standard way...
Asked on 01/07/2021 by Sr Incerteza
1 answerWe can express any desired periodic waveform using Fourier series. In the book I am studying from it's said:'We see that with Fourier series, we can produce any desired periodic...
Asked on 01/07/2021 by PhysicsQuestion
1 answerA 12V battery has an internal resistance of $2.0Omega$. A load of variable resistance is connected across the battery and adjusted to have resistance equal to that of the...
Asked on 01/07/2021
4 answerIf there are 8 gluons, and 6 of them can be represented as a color/anticolor pair (red/antiblue for example), that leaves 2 "other" gluons. How do these two gluons differ...
Asked on 01/07/2021 by Madman
2 answerI have some questions for you about the resonance phenomenon in a guitar:Why resonance frequency are only full integer multiples of the natural frequency, such as 2 x, 3 x,...
Asked on 01/07/2021 by A. Rossi
1 answerGet help from others!
Recent Answers
Recent Questions
© 2024 TransWikia.com. All rights reserved. Sites we Love: PCI Database, UKBizDB, Menu Kuliner, Sharing RPP