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9 Jan 2024: f(x) = constant. Show that B ( B) = 0. The tangent vector at each point on a curve is parallel to a non-vanishing vector. ... Evaluate the divergence and curl of the following:. rx, a(x b), a x, x/r3,.

18 Jan 2024: from which we found the scattering data for the potential 2m2sech2mx was R(k) = 0and λ1 = κ21 = m2 and c1 =. 2m. Now by considering B = x 2mtanhmx and. B† = x 2mtanhmx , ... and computing BB† and B†B, find the scattering data forthe potential

26 Jan 2024: b) Show that Tr (XaZb) = 0 for all (a,b) Zd Zd except (a,b) = (0,0). ... a|2 |b|2 = 1 and denotes complex conjugation.Alice and Bob are distantly separated in space.