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Just here to learn and share.
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Dec 12 |
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Poisson brackets: prove that they are canonical invariants I like this answer, can you please point me to a reference which talks about the definition of a canonical transformation you mentioned (i.e I being symplectic)? I would give you 100 points of my rep if I knew how! |
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Dec 11 |
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How do I properly use Newton's Third Law and Free Body Diagrams? My first suggestion would be: Draw the coordinate system! Then, write the forces in vector form (this makes everything unambiguous). |
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Dec 11 |
answered | optical equivalent of a superconductor |
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Dec 11 |
asked | When can photon field amplitudes be written as field operators? |
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Dec 6 |
answered | Simplest interferometer |
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Dec 6 |
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About the complex nature of the wave function? Removed the downvote by adding a +1. I found this post informative and detailed and I don't really care if it precisely answered the original question or not. |
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Nov 27 |
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Spectrum of quantum fluctuations in a harmonic oscillator Vladimir, first you need to calculate the variance of the operator in whatever basis you are working in to get a measure of fluctuation or noise. The RMS value is given as $\sqrt{\langle\hat{O}^2\rangle-\langle\hat{O}\rangle^2}$. |
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Nov 27 |
awarded | Caucus |
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Oct 31 |
answered | What ways are there to measure the local polarization of a laser beam? |
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Oct 31 |
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Zero Point Fluctuations The average energy is zero, but the variance need not be zero. |
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Oct 23 |
awarded | Yearling |
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Sep 22 |
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Matrix mechanics for those with wave mechanics background Quantum Mechanics by R.L Liboff has some introductory Matrix Mechanics. It is an o.k but dated book for a first course in QM. |
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Sep 10 |
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Find the distance of a third charge Avalon, remember that C(x,y) need not be collinear with A or B. From coordinate geometry, write down the distance between points A and C. |
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Sep 9 |
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Problem book in Quantum mechanics with emphasis on physical(ly relevant) problems Most physically relevant problems you encounter in current research would require some form of field theory. I'd suggest working through the first volume and then working through the second volume. |
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Sep 9 |
answered | Find the distance of a third charge |
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Sep 8 |
answered | A Different Lasing Medium |
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Sep 3 |
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Optical laser pumping and reflectors Are you talking about a CW Laser or a Pulsed Laser? |
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Sep 1 |
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Symbol for dashpot/damper (in a harmonic oscillator) It depends on the whim of the author I suppose. |
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Sep 1 |
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Symbol for dashpot/damper (in a harmonic oscillator) You should look for the terms "driven" ,"damped" in the notes. This is what decides the behavior of your oscillator. No matter how the picture is, if your notes say "damped" you will have one form of the equation, if it says "driven" you will have the other form. Are you studying R-C oscillators? |
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Sep 1 |
answered | Books that every physicist should read |
