Recent content by foobar

In this page https://en.wikipedia.org/wiki/Matrix_mechanics I don't understand this statement : "When a classical particle is weakly coupled to a https://en.wikipedia.org/w/index.php?title=Radiation_field&action=edit&redlink=1, so that the radiative damping can be neglected, it will emit...

ghwellsjr very impressive analysis, only spotted it later. thanks

OK that's clear. Thanks for all the comments.

This in particular I am wondering about. Can the London crash occur first in some frame, and the new York crash be first in some other frame? : " in other frames (in a different state of motion relative to the events) the crash in London may occur first, and in still other frames the New York...

sister birth event xs,ts. brother birth event xb, tb ts+D=tb sister is D units older. In some primed frame: t's=γ(ts-vxs/c2) t'b=γ(tb-vxb/c2) t'b-t's=γ(D-v/c2(xb-xs)) =0 for simultaneous birth in primed frame. so xb-xs=Dc2/v or v=Dc2/(xb-xs) =c * c/(xb-xs)/D...

quote from wikipedia: "According to the special theory of relativity, it is impossible to say in an absolute sense whether two distinct events occur at the same time if those events are separated in space, such as a car crash in London and another in New York. The question of whether the events...

OK thanks for that. pretty impressive then.

The Schrödinger equation solved for the hydrogen atom gave good agreement with spectral lines, except for line doublets. To account for these electron spin theory was grafted onto the theory, despite the problem of electron being a point particle. In 1928 Dirac gives his different answer...

I made no statement about the predictions of QM being different from Bohmian mechanics sir. I am only interested in the physics of what is happening. and have no interest in a semantic or pedantic discussion.

OK I was hasty in doubting the results. As I said the pattern is probably a diffraction pattern. I must disagree with your other comments. My point was and is a reasonable one to make. Wave/particle duality is part of QM. en.wikipedia.org/wiki/Matter_wave quote from wikipedia: "In...

Seamus No I had not read that. this is the article I think. unquantum.net/particleviolationspectroscopy.pdf foobar.

Thanks for the info and comments all. I am skeptical of claims that atom or molecules just split in two parts one goes through one slit another thro the second and they recombine in an interference pattern, where the particle is supposed to be described by an amplitude psi. To seriously...

DrChinese Thanks for that. foobarWould appreciate if anyone could say how credible is this claim of diffraction of C60. Could their diffraction pattern be from some other innocent cause?

I find this hard to believe. I do not have access to the Nature article below.But would like to know more detail of what was done or see a copy of the Nature article. Wikipedia: "In 1999, the diffraction of C60 fullerenes by researchers from the University of Vienna was reported" ...

QM texts explain electron spin as an intrinsic spin with intrinsic angular momentum of electron. And this theory predicts (or postdicts maybe?) splitting of silver or hydrogen atom or electron beams in Stern Gerlach experiments. a few questions: 1) intrinsic angular momentum with its...