bhobba's latest activity
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bhobba reacted to Matterwave's post in the thread Graduate My questions about QFT and the standard model with
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This is a very long question which covers quite a bit of the QFT machinery. It might be more productive to focus on one specific... -
bhobba replied to the thread High School What Medium Does Light Travel Through in Space?.The whole issue of virtual particles and vacuum fluctuations being real is complicated, with many experts (including me, not that I am...
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bhobba replied to the thread High School What Medium Does Light Travel Through in Space?.There is what is called the quantum EM field that permeates all space. Heuristically (i.e., not true but adds some intuition), a photon...
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bhobba reacted to Dale's post in the thread High School What Medium Does Light Travel Through in Space? with Like.
I disagree with many claims in any MDPI journal. They are, in my opinion, a predatory publisher with unethical practices. If you wish...
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bhobba reacted to Dale's post in the thread High School What Medium Does Light Travel Through in Space? with Like.
Those are just artifacts of the SI units. They are not part of nature. They don’t even exist in some other unit systems. Space is...
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bhobba reacted to Orodruin's post in the thread High School What Medium Does Light Travel Through in Space? with Like.
This is a faulty assumption and you would do well to get rid of it.
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bhobba reacted to PeroK's post in the thread High School What Medium Does Light Travel Through in Space? with Like.
Empty space is a vacuum. Interstellar and intergalactic space are almost empty, but not quite.
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bhobba reacted to Ibix's post in the thread High School What Medium Does Light Travel Through in Space? with Like.
They don't. Discovering that there's no evidence of a medium was a large part of the work that led to relativity theory.
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bhobba reacted to PeterDonis's post in the thread Undergrad Are classical optics and quantum mechanics double slit experiments fundamentally the same? with Like.
Moderator's note: Two posts discussing a paper on "dark photons" have been deleted. It's not clear that that paper is even a valid...
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bhobba replied to the thread Undergrad Are classical optics and quantum mechanics double slit experiments fundamentally the same?.For what photons are, not the POP scIence version, see the following I frequently post...
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bhobba reacted to weirdoguy's post in the thread Undergrad Are classical optics and quantum mechanics double slit experiments fundamentally the same? with Like.
For massless fields with spin 1 or more, we can't construct position operator, so one can't think about photons traveling along any path...
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bhobba reacted to weirdoguy's post in the thread Undergrad Are classical optics and quantum mechanics double slit experiments fundamentally the same? with Like.
It has been discarded from modern quantum physics a long time ago (even though pop-science still talks about it). It has been discussed...
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bhobba replied to the thread Undergrad Are classical optics and quantum mechanics double slit experiments fundamentally the same?.It isn't. Its resolution in QM is actually deep. Here is a deeper explanation: https://arxiv.org/abs/quant-ph/0703126 Even that is...
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bhobba reacted to aletheia's post in the thread Undergrad Are classical optics and quantum mechanics double slit experiments fundamentally the same? with Like.
If you really think my problem is “basic math”, then it’s on you — for not understanding it and for this passive-aggressive argument...
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bhobba reacted to sophiecentaur's post in the thread Undergrad Are classical optics and quantum mechanics double slit experiments fundamentally the same? with Like.
To measure a quantity requires Energy, which is a function of Wave Energy (power times observation time) and Power is Amplitude Squared...