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In Continuous-Variable quantum information, a general Gaussian measurement is described by the POVM elements (say on a single mode for simplicity)$$ Pi(alpha) = frac{1}{pi} D(alpha) Pi^0 D^{dagger}(alpha)$$ where...
Asked on 02/23/2021
2 answerI am currently doing this problem and although I got the answer right, I do not completely understand how the...
Asked on 02/23/2021 by LVST
2 answerI went to Wolfram's "Drag Force Calculator" and received 4900 newtons for a cone that has a radius of 3 meters and a height of 3 meters, moving through air...
Asked on 02/23/2021 by Sam X
1 answerI've been looking at stuff to do with binding energies and was wondering why Helium 4 is so stable. The fact everything up to carbon is less stable seems a...
Asked on 02/23/2021 by Owen683
2 answerJust like we draw FBD of a block on table or on land.How should we approach the FBD for earth....
Asked on 02/23/2021 by srijan Sri
1 answerUnder a time-dependent transformation $V(t)$ of the state vectors $|{psi}rangle$ begin{equation}|psi'(t)rangle = V(t) |psi(t)rangleend{equation} The Hamiltonian $H(t)$ has to transform as begin{equation}...
Asked on 02/23/2021 by ablagi
0 answerRadio waves, microwaves and infrared are known to produce heat and even cause burns, while visible light and ultraviolet are not. This seems counterintuitive to me, as the latter contain...
Asked on 02/23/2021 by J. Schmidt
3 answerWhat is the difference between classical particle and quantum particle? I was thinking that we can distinguish between classical mechanics and quantum mechanics by changing our length scale. But I...
Asked on 02/23/2021 by Kunal kumar
2 answerLet's take a simple $E^3$ space with coordinates $(x,y,z)$ and metric tensor$$ g = mathrm{d} x otimes mathrm{d} x + mathrm{d} y otimes mathrm{d} y +...
Asked on 02/23/2021
0 answerIn my general relativity course, we are discussing infinitesimal diffeomorphisms defined by $x^{mu}rightarrow y^{mu}(x) = x^{mu} + xi^{mu}(x)$. We have been examining how different objects transform under this. For...
Asked on 02/23/2021 by ZacharyC
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