Discussions - sci.physics.foundations

	The reason why there are three gauge forces?
	I still have problems with Schiller's approach - but he seems to be on an interesting avenue for sure. He now has updated his arxiv manuscript. The new abstract is much bolder than before: [link] Deducing the three gauge interactions from the three Reidemeister moves Authors: Christoph Schiller... more » By JohnMS - Nov 17 - 2 new of 2 messages

	Looking for Fourier transform of x^-(n/m), where n,m are integers but n/m is not
	In the course of working through a physics exercise, I have come across the need to evaluate the Fourier transform of the general form: F(x^-(n/m)) = $ x^-(n/m) exp^-x.w dx (1) For example, what might be F(x^-(10/3)), which contains a cubed root, and is for the underlying function (x^10)^-(1/3)? At the link... more » By Jay R. Yablon - Nov 16 - 9 new of 9 messages

	Questions about the relationship between the metric tensor and the gravitational field
	In the linear approximation, the metric tensor g^uv is related to the gravitational field h^uv according to (k=sqrt(16 pi G)): g^uv = eta^uv + k h^uv (1) Further, the "graviton" field psi^uv is related to h^uv according to (what is the best thing to call psi^uv, in contrast to h^uv?): psi^uv = h^uv - .5 g^uv h (2)... more » By Jay R. Yablon - Nov 14 - 1 new of 1 message

Spin and Relativity.

Dr. Francis posted in another thread, (qm). "Spin is not easy to understand, but it is clear that relativistic quantum mechanics both makes it necessary and defines its behaviour. I do not think this is such a problem. " To elaborate, my thinking follows...from the standpoint of GR. Some background: Absolute motion cannot exist since one... more »

By Ken S. Tucker - Nov 14 - 5 new of 5 messages

	Gravity and black holes
	Thus spake David <posti...@REMOVE-TO-REPLYconfi dential-counselling.com> ...No, this is not right. A black hole does exert gravitational influence on its surroundings. Regards By Oh No - Nov 13 - 2 new of 2 messages

understanding qm

‘If one wants to be clear about what is meant by “position of an object”, for example of an electron..., then one has to specify definite experiments by which the “position of an electron” can be measured; otherwise this term has no meaning at all’ (Heisenberg, 1927). What I don't get is that, since this goes back to 1927, and Stone's... more »

By Oh No - Nov 13 - 16 new of 16 messages

	Quantum Field Theory: The Big, Simple Picture?
	I have been studying quantum field theory for about two years now, and for all the drama and encyclopedic tomes about quantum theory, it seems to me that there is really a very simple and clear line between classical and quantum theory, at least when one views QFT through the lens of Path Integration.... more » By Jay R. Yablon - Nov 12 - 2 new of 2 messages

	What would be the field element for Path Integation of the Einstein - Hilbert Action?
	If one were to use the Einstein-Hilbert action in the usual expression for a path integral, where the metric tensor g_uv (or at least its gravitational field components h_uv) is itself the field of interest, in order to see what quantum gravitational looks like, the path integral would be specified by (k=the usual kappa):... more » By Jay R. Yablon - Nov 10 - 7 new of 7 messages

	Generalized Calculation of Path Integrals for Quadratic Form Actions: Some Questions
	Dear Friends: In an exercise linked at: [link] I have sought to examine the mathematics used to obtain a closed form expression for the path integral for a Lagrangian which is a general polynomial in the field psi, for any and all orders in the field, but... more » By Jay R. Yablon - Nov 9 - 2 new of 2 messages

Nothing special about Quantum Mechanics any more

With the advent of Joy Christian's disproof of Bell's theorem [1-5] and coupled with Christoph Schiller's strand model of knots and tangles [6,7], I would have to say there is really not much left to disspell about any mysteries of quantum mechanics. It is simply what you use to predict the more random behavior of nature. And classical physics is... more »

By FrediFizzx - Nov 7 - 18 new of 18 messages