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For instance, I know that $chi^{2}$ materials need to lack inversion symmetry, but what about $chi^{3}$ materials?...
Asked on 07/08/2021 by Connor Skehan
1 answerPlease help me find the the representation in $k$-space (Fourier transform) of the following function:$$f(k_t, k_z, m) = J_m(k_trho)exp(ik_zz)exp(imphi)/N$$ The properties of $f$ given...
Asked on 07/08/2021
1 answerOne of the Laplace equation's property says that the maxima and minima can only occur at the boundaries.Okay so lets take 2 positive charges, one at the origin and...
Asked on 07/08/2021
4 answerI already searched myself, but none of the sources I found explains it in itself. Usually it's some paper that uses Vernier effect for something. It's all convoluted. All I...
Asked on 07/07/2021
0 answerIn a linear material under the influence of an external field $H$, magnetization $M$ is given bybegin{align}{bf M} = chi {bf H},end{align}so that...
Asked on 07/07/2021 by Lucas Baldo
0 answerWhile defining the concept of angular momentum in quantum mechanics, I see that in definition they have replaced the classical variable by their respective operators. I want to know what's...
Asked on 07/07/2021 by Devesh Vaish
0 answerI’m self-studying “An Introduction to Mechanics” by Kleppner and Kolenkow, 2nd edition. Is there a published errata (list of corrections) for the book and more importantly the solutions manual? I’ve...
Asked on 07/07/2021 by Mark Davoren
0 answerI'm reading Griffiths proof of Ampère’s Law and in that proof he needs to show that : $$oint frac{(x - x^{'})}{imath ^{3}}mathbf J cdot mathbf {da^{'}} = 0 $$...
Asked on 07/07/2021
1 answerI have just learned that the total angular momentum of a system is measured by adding the angular momentum of the Center of Mass and also the angular momentum of...
Asked on 07/07/2021 by Riccardo CAIULO 12C02S
1 answerIs the spacetime continuous or discrete?Or better, is the 4-dimensional spacetime of general-relativity discrete or continuous? What if we consider additional dimensions like string theory hypothesizes? Are those compact...
Asked on 07/07/2021 by linello
7 answerGet help from others!
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