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I was going thorough paper Transformation of quantum states using uniformly controlled rotation by Mottonen et al. In that it saysThe configuration space of the $n$-qubit...
Asked on 12/09/2020 by Anuroop Kuppam
1 answerLet us suppose we have the operators $a(omega)$ and $a^dagger(omega)$ with $[a(omega),a^dagger (omega')] = delta(omega-omega')$. Does a derivative of the Fock state $a^dagger(omega) |0rangle$ with respect...
Asked on 12/08/2020 by yasalami
1 answer$$mathbf{B}=begin{cases}B_{0}t ;t in [0,T]B_{0}T ;t>Tend{cases}$$ Assume negligible resistance for the connecting wire and other necessary constants. Should I...
Asked on 12/08/2020 by Boy
4 answerWhen a conducting rod moves orthogonally through a magnetic field, charges in that conductor experience a force that is perpendicular to both the magnetic field and their velocity. Let's say...
Asked on 12/08/2020 by Adriaan Berger
2 answerThe time-evolution operator $hat U$ is defined so that $Psi(x,t)=hat U(t)Psi(x,0)$. In terms of the Hamiltonian, it is expressed as $hat{U}(t)=exp left(-frac{i t}{hbar} hat{H}right)$. I'm trying to...
Asked on 12/08/2020
1 answerI was reading my class notes and it was written that electrons are more mobile than holes because the effective mass of electrons are lower than that of holes. (μ=eτ/m*)...
Asked on 12/08/2020 by Gourabo
0 answerI read in some text that some areas of an object or some parts of an object are compressive. How is this defined? Is it that the maximum principal stress...
Asked on 12/08/2020 by Saint Paul
0 answerI'm trying to calculate the Christoffel Symbols in a 2+1D space-time with the following metric: $$ds^2 = N^2(vec r)c^2dt^2-phi(vec r)(dx^1)^2-phi(vec r)(dx^2)^2$$ To find the Christoffel ymbols I need to invert...
Asked on 12/08/2020
1 answerWhat are the maximum safe acute and chronic magnetic field intensites for a human being? I imagine with sufficiently intense fields the Lorentz force is going to cause issues with...
Asked on 12/08/2020
1 answerI know that a photons energy is quantized and that it can excite a bounded electron from one energy state to the other whic depends upon the energy the photon...
Asked on 12/08/2020 by Ashwin Singh
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