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Physics : Recent Questions and Answers (Page 746)

Find answers to your questions about Physics or help others by answering their Physics questions.

Quantum Field theory question just conceptually grasping from Sean Carroll's “Biggest Ideas in the Universe”!

Quantum Field Theory from Sean Carroll's Biggest Ideas in the Universe. I’m just checking to see if I’m on the right track of what he's explaining. He talks about a...

Asked on 12/12/2020 by Antmang1

0 answer

Electron scattering to measure the nuclear radius

I have been taught that you can find out the size of a nucleus of an atom by firing electrons at high velocities at the atom. This causing scattering due...

Asked on 12/12/2020 by Somniare

1 answer

Black Holes in Horava-Lifshitz Gravity?

I know that Cosmology has a role in Horava-Lifshitz Gravity, but do Black Holes play a significant role in the applications of Horava Lifshitz Gravity, if so,...

Asked on 12/12/2020 by user279286

0 answer

Is the Marx Bank Still the Gold Standard?

Is the Marx bank still the fastest pulse forming network for generating high magnetic fields at large scale, or is there another design that outperforms it?...

Asked on 12/12/2020 by John Schutkeker

0 answer

Which fact is true about the speed and frequency of light?

I am totally stuck over this concept and google doesn't help. First, We say that light's speed is constant for all colors in vacuum but different in all other media....

Asked on 12/12/2020 by Nikhil Sharma

1 answer

Lindblad from infinitesimal Kraus sum representation

I have a few basic queries regarding a proof in the set of notes MIT: Open Quantum Systems, the following is stated:We can derive the Lindblad equation...

Asked on 12/12/2020 by John Doe

1 answer

Finite temperature greens function in grand canonical ensemble

I see this question was asked several times before but I don't think any answer can explain the issue perfectly. I am studying many body theory and encounters finite temperature...

Asked on 12/12/2020 by Wong Harry

1 answer

Numerically calculating Berry curvature in >2-band 2D systems?

The standard method for numerically calculating the Berry curvature of a 2D condensed matter system is given by Fukui-Hatsugai-Suzuki in this paper.They discretize $k$-space into...

Asked on 12/12/2020 by TribalChief

1 answer

Conservation of Angular Momentum in different cases

Conservation of angular momentum can be applied when there is no external torque on the system which is isolated. However, my physics teacher gives me a sum that:Two discs are...

Asked on 12/12/2020 by Siddharth Venu

1 answer

How does one compute the state of a quantum system following imperfect measurement?

Suppose I have a quantum system $S$ ("system") with Hamiltonian $H_S$ and initial density matrix $rho_S(0)$.I allow $S$ to interact with another system $P$ ("probe"), which has Hamiltonian $H_P$...

Asked on 12/12/2020

1 answer

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