Dear All, I have a complicated diffusion equation with various slowly changing time dependent parameters. Does anyone know if there is an analogue of the adiabatic...

1) It is well known that the inner product of position and momentum eigenvectors: x|p = exp (1) Is there some simplified expression for the outer product: |xp|...

Recently there were some posts discussing the definition of "momentum operator" in quantum mechanics. One poster asked about it, and another replied that the answer could...

Call for papers: MULTICONF-10, USA, July 2010 The 2010 multi-conference (MULTICONF-10) (website: http://www.PromoteResearch.org ) will be held during July 12-14, 2010 in...

hello all, I want to ask if i have to store sound energy so that i can convert it to power a bulb . how should i accomplish that can anybody give me idea thanks

Dear All, I have a one dimensional quantum mechanics problem where x is the coordinate operator and p the momentum operator (so =i). The object of interest...

Hello, I have read this on wikipedia about the exclusion principle, without any reference: "In relativistic quantum field theory, the Pauli principle follows from applying...

In the case of atoms, there is a rough correlation that gives the radius for different n values: R ~ n^2 a, where a = the Bohr radius. Atoms can range in size by a factor of...

Hello Let k1, k2, k3 be wavenumber vectors that are not collinear and not in the same plane (they span 3-space) and let k4 = k1 + k2 + k3 (momentum conservation) be the...

What is the status/acceptance of "Discrepancies in quantum electro-dynamics" 2004: Radiation Physics and Chemistry 71(3-4), 611-617 by C. T. Chantler? I have not found any...

In his development of the path integral at: http://jayryablon.files.wordpress.com/2009/12/sakurai-and-zee.pdf professor A. Zee has two errata which he has corrected at:...

Some interesting posts. However I have quite a lot of PRACTICAL experience with domestic solar power systems and the different uses of the overall power load must be very...

The Big Bang & Variable Light Speed I'm going to offer an interesting perspective on the FW cosmology -- a different take that brings to light (pun intended) what's hiding...

Please take a look at http://en.wikipedia.org/wiki/Lie_product_formula. Would this formula, which is stated to apply to NxN matrices, also apply to an infinite-dimensioned...

Consider a metric for a 2-dimensional manifold in the form: ds^2 =dt^2 - dx^2/ c^2 How can I tell PHYSICALLY whether c is a constant or is some non - constant...

I am reading Luminet's paper titled "Time, Topology and the Twin Paradox" available at: http://arxiv.org/ftp/arxiv/papers/0910/0910.5847.pdf The author is deriving the...

Was listening to radio program "Coast to Coast AM" tonight with Art Bell and this American physicist Dr. David Anderson claims to have traveled in time. It sounds ridiculous...

In the path integral formulation of quantum theory, the Dirac probability amplitude: x_2,t_2|x_1,t_1 "corresponds to" exp = exp (1) where L is the classical...

Problem: An electron and a positron annihilate to produce a pair of photons which move in two specific directions. Now the question is what really transports the information...

It would be greatly appreciated if this announcement could be shared with individuals whose research interests include scientific computing. Thanks. ------- ...