Quantum Phisics Theory

[alan]

Could anyone explain basic quantum theory not to much detail needed for some reference for a book im writing just an overview would suffice
thanx
alan http://www.sysopt.com/forum/smile.gif

[jad1097]

This is a good place to start. (http://search.britannica.com/bcom/search/results/1,5843,,00.html?p_query0=quantum%20theory)

[This message has been edited by jad1097 (edited 04-01-2000).]

[dos7]

well Alan, kwantum fisics is really fasinattin' stuff, its the branch of mathematickal fisics that deals with the emishun and absorpshun of energy by matter and with the moshun of material partickles.

yup, thats it

dos7

http://www.sysopt.com/forum/redface.gif)

[Richard_Cranium72]

Max Planck found the first hints of the quantum theory in 1900.
H.A. Lorentz: "He meant more than all the others I have met on life's journey."
Erwin Schrödinger and Louis de Broglie developed a quantum theory that appealed to Einstein. He said de Broglie had "lifted a corner of the great veil." But it was soon found that this theory was mathematically equivalent to the Heisenberg theory, which Einstein distrusted.
Max Born, another pioneer of the quantum theory, was a friend of Einstein for many years. ==>> By the mid 1930s, Einstein had accepted quantum mechanics as a consistent theory for the statistics of the behavior of atoms. He recognized that it was "the most successful physical theory of our time." This theory, which he had helped to create, could explain nearly all the physical phenomena of the everyday world. Eventually the applications would include transistors, lasers, a new chemistry, and more. Thanks yet again Jad for the link, DrVette

[alan]

thanx jad and rich for the input
and to dos7 dont take the **** boy
alan

[dos7]

sorry, just playin' hehehe

[This message has been edited by dos7 (edited 04-01-2000).]

[SDT]

Quantum Mechanics - The dreams stuff is made of.

[Richard_Cranium72]

A little more =>> Rudiments of Quantum Theory

Quantum theory was not created "out of the blue". It's mathematical framework and ideas grow out of a long history of classical mechanics.
A number of certain experiments around the turn of the century created the need to replace the classical theory of matter with a new quantum theory.
The first attempt's (Bohr) had remarkable yet limited success. This became known as the Old Quantum Theory.
Schrödinger and Heisenberg developed the modern theory, which was extended by Dirac to include relativistic effects. =>> http://www.chembio.uoguelph.ca/educmat/chm386/rudiment/rudiment.htm

[OuTpaTienT]

Check out a book or some of the articles written by this guy: Dr. Michio Kaku, Prof. of Theoretical Physics (http://www.dorsai.org/~mkaku/)

[Paul V]

One key component of quantum theory is the dual nature of matter. Matter has both a particulate and a wave nature. This is seen in that you can get interference patterns from electrons, and yet they also display particulate natures as well. Same with light, and in fact same with all matter. You have a mass, velocity, momentum, but you also have a wavelength.

Also, this deals with quanta -- the fact that many aspects of matter can be given integer or fractional numbers. And within an atom, each electron (under normal conditions) must obey the Pauli exclusion principle, which means each must have a different set of quantum numbers. Superconductivity is a consequence of this breaking down, when electrons begin to enter a single quantum state and thus have one single wave function.

Also, this theory explains a lot of things, like how the sun can undergo nuclear fusion. The temperature of the sun is just too low for hydrogen ions to have any reasonable chance to overcome the repulsion they have with each other and get close enough to fuse (which is extremely close, on the order of nanometers, and repulsion is inversly proportional to d^2, so as the distance is small, repulsion is HUGE). Classical mechanics says the ions hit a barrier and are unable to overcome it. Some ions would have more energy than others, and so there would be a very small chance that it would happen, but the amount of fusion that would happen would not be enough to sustain the sun, it wouldn't even be close.

However, in quantum mechanics, the wave function allows that sometimes a particle will come to a barrier (be it physical, or, as in this case, electrical) and "tunnel" through it, i.e. appear on the other side. Quantum tunneling is the only reason the sun can function, and the reason life on earth is possible.