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| visits | member for | 1 year, 7 months |
| seen | 11 hours ago | |
| stats | profile views | 193 |
Just here to learn and share.
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Apr 8 |
answered | If a measured value is oscillating so fast between two numbers, what does the detector read? |
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Apr 8 |
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How do I know an initial speed of a thrown object using the max height Regardless of the syntax, the logic is very simple. Declare $g$ as a double precision constant, $h$ and $v_0$ as double precision arrays, implement a loop within which you read values of $h$, compute $v_0$ and push the computed value back into the array you declared for $v_0$. |
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Apr 6 |
answered | How do I know an initial speed of a thrown object using the max height |
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Mar 19 |
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Strategies against 50 Hz mains hum on detector signals? Take a look at mini-circuits (minicircuits.com/homepage/homepage.html) and digikey (search.digikey.com/us/en/cat/filters/line-filters/…). |
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Mar 18 |
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Does Quantum Mechanics assume space and time are continuous? Modern field theory is based on the Poincare group, i.e., space and time are continuous. Why? No idea. +1 |
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Mar 18 |
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Is the quantization of the harmonic oscillator unique? By deformation quantization, do you mean a different kind (parametrized?) of homomorphism? |
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Mar 16 |
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What is a general definition of the spin of a particle? You can think of spin as residual angular momentum in the rest frame. |
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Mar 11 |
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Accuracy of atomic clocks The theoretical limit would be the linewidth of the line being used (D1 or D2) of Rb or Cs. This is from Heisenberg's time energy uncertainty. The accepted value is 5.3Mhz for Cs (if I remember correctly). |
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Mar 10 |
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Why does optical pumping of Rubidium require presence of magnetic field? It would help if you explained how your experiment is setup? What kind of light source, detectors...there are many reasons why optical pumping is getting washed out. Pulsed light or CW light? How are you probing the system? |
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Mar 10 |
answered | Why does optical pumping of Rubidium require presence of magnetic field? |
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Mar 9 |
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Does no-cloning theorem implies a no-comparison theorem? How exactly can you obtain a result of your operation without a measurement? |
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Mar 9 |
answered | Accuracy of atomic clocks |
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Mar 9 |
answered | Does no-cloning theorem implies a no-comparison theorem? |
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Mar 9 |
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At what angle does a single atom “reflect” a single photon? Just remember that energy, momentum and angular momentum have to be conserved and you will get a spatial probability distribution. Of course, you have to take into account the recoil velocity of the atom as well. |
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Mar 8 |
answered | Why are there 4 Dimensions and 4 Fundamental Forces? |
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Feb 26 |
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Turn-on delay time for Laser diode The turn on delay or soft-start is by design and depends on the laser current controller. As far as I know, it has nothing to do with the diode laser itself. It is not so much as a delay as it is a slow ramping up of the current. This is done because transient currents can easily destroy an LD. |
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Feb 25 |
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What does physics study? @kleingordon: What moves through spacetime when an electric dipole interacts with a photon field? The mechanistic view is archaic. Field Theory is the accepted modern interpretation. Manishearth: I'd suggest you take a look at this article:->Can a Biologist Fix a radio? |
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Feb 24 |
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What does physics study? I'd have to disagree with the Wiki's definition/description because it seems to offer a mechanistic view. In my opinion, physics is the study of interactions between objects. |
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Feb 23 |
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Does sending data down a fiber optic cable take longer if the cable is bent? The polarization certainly changes, but the time of travel does not. You have to think in terms of fields and not billiard balls bouncing around. Changing the length of the fiber will certainly change the time of arrival/detection. |
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Feb 23 |
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What math do I need for mathematical physics? In what manner should I learn math? Yes, you are right. Good point. |
