PeterDonis's latest activity
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PeterDonis replied to the thread I How do Tensors "work" in relation to linear algebraic objects?."Linear algebra" is not the same as "matrix algebra". Column vectors, row vectors, and matrices are just one possible representation of... -
PeterDonis replied to the thread I How do Tensors "work" in relation to linear algebraic objects?.@Sciencemaster please note I've used magic moderator powers to edit your LaTeX a bit. You use double dollar signs to enclose inline...
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PeterDonis reacted to JimWhoKnew's post in the thread I Visual depiction of atomic orbitals with
Like.
##Y^m_l## is a function of two variables that has complex values on a sphere. Following @WernerQH in post #6, ##p_z## is described by... -
PeterDonis replied to the thread B Can gravitons be detected?.You might want to look up bar detectors for gravitational waves. It's not a new concept. In fact it was the first type of gravitational...
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PeterDonis reacted to Ibix's post in the thread I Can this experiment break Lorentz symmetry? with Like.
But you are still using Newtonian formulae, which means you accept the principle of relativity. So you are not testing the principle of...
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PeterDonis reacted to Nugatory's post in the thread I Can this experiment break Lorentz symmetry? with Like.
@Asaad-Hamad We can answer questions, but we can’t make you like the answer. The questions in the original post and repeated in #11...
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PeterDonis replied to the thread I Visual depiction of atomic orbitals.He means providing a reference to an actual textbook or peer reviewed paper that says this:
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PeterDonis replied to the thread How do people explore new ideas in physics?.Then anyone who wants to look at it can ask you for a link via PM. You're correct that it is off topic for this thread and for any...
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PeterDonis reacted to fresh_42's post in the thread How do people explore new ideas in physics? with Like.
I just explained in a DM how math proofs must be read. I think it is a nice, though very simple example of why it is a big deal to...
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Realized I am a genius. I completely understood the forum rules about posting personal theories the first time I read them, but...
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PeterDonis reacted to Dale's post in the thread I Can this experiment break Lorentz symmetry? with Like.
This kind of setup is already done all the time. What you describe is any particle accelerator that uses counter-rotating beams. If the...
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@James Hasty - here's why all attempts to measure the one way speed of light fail. This is a Minkowski diagram - it shows the position...
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PeterDonis reacted to PeroK's post in the thread I Probabalistic determination Photon Entaglement with Like.
There is no such thing as a spin -1/2 particle. The 1/2 refers to the magnitude of total spin, which is always positive. That said...
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PeterDonis replied to the thread How do people explore new ideas in physics?.No, I'm just pointing out that his "sales pitch" makes his proposal off topic. The fact that his "sales pitch" might not be an accurate...
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PeterDonis replied to the thread I Violation of Bell Inequality with unentangled photons.But why would you want to? What's wrong with the standard definition? Why is it necessary to change it?
