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3
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54 views

How many orders of magnitude in energy spans the domain of validity of the Standard Model?

I am wondering if it makes sense to state that the upper limit is roughly 1012 eV (up to know the physics probed by the LHC seems to be pretty consistent with the SM) and the lower one is ... the ...
2
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0answers
97 views

Does this photon emission problem even make sense?

I came across this question in an introductory physics course awhile back and I never got over it: "A hydrogen atom has an electron in the n=5 orbit, what is the maximum number of photons that might ...
2
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86 views

Does the passage of time effect a photons entanglement with another?

I recently read an article about "Delayed-choice entanglement swapping". Here is an excerpt from the article: Delayed-choice entanglement swapping consists of the following steps. (I use the ...
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0answers
31 views

How does a photon leave trace of its polarization state in a photon detector but not trace of which direction it came in?

Some quantum erasure experiments involve polarization of photons. In one such experiment with a double slit, a horizontal polarizer is used in front of one slit, and a vertical polarizer is used for ...
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34 views

Why, in EXAFS spectrum, does the absorption coefficient monotonically decrease with increasing photon energy?

It is common knowledge that following the absorption edge, where the photon energy equals the binding energy of a core electron, a monotonic decrease in the absorption coefficient with increasing ...
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100 views

Why angular momentum applies to emitted photons, and how it affects the emitting atom's quantized system

From what I've read, photons have spin of 1 (I guess possible by their relativistic mass), and when a photon is emitted from an atom, the production of this spin affects the balance of the atom's ...
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76 views

Is there any optical experiment that can not be explained by photon model defined in QED?

Some author(in the paper of Evolution of the modern photon) mentioned that photon cannot account for the zero intensity through two crossed polarizators by 90 degree. Why so?
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64 views

polarization - quantum point of view

polarization could be easily imagined in classical model: direction of E vector. is there any simple image for polarization of single photon?