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-   -   quantum siscomboobulation in speaker cables (http://www.diyaudio.com/forums/lounge/183775-quantum-siscomboobulation-speaker-cables.html)

7n7is 23rd February 2011 01:57 PM

quantum siscomboobulation in speaker cables
 
Read about the phenomenon of quantum siscomboobulation here:
US patent 5110793
column 2 lines 35+
The concept accepted at present is similar (the BCS theory), and suggests that if a mobile electron propagates through a lattice structure, it will normally interact with the bound electrons of the lattice because of differences in the electron quantum-spin number. However, if two such electrons form a pair which are bound through opposite spin-pairing (Cooper pairs), then no quantum interaction of the bound pairs can occur with the electrons of the lattice (which still have an electron moment).

Also see this about oxygen free copper.
US patent 4582545 Method of producing electrical conductor
oxygen free copper

Google Patents

It appears that electrons moving through conductors can interact quantum mechanically with the crystal lattice of the conductor.

DF96 23rd February 2011 02:21 PM

I'm not sure what your point is. Cooper pairs and BCS is the accepted theory for low temperature superconductors. For high temperature superconductors the theory is less clear, as BCS does not appear to work here.

It is electrons scattering off lattice defects, phonons etc. which give metals their linear Ohmic resistance. You can do a rough approximation using classical mechanics, or do it properly with quantum mechanics. I forget the details, as it was over 30 years ago when I last attended classes on solid state physics.

7n7is 23rd February 2011 04:26 PM

Many don't believe speaker cables make a difference in sound quality. Can human hearing actually not be sensitive enough to hear it? Use the search engine and find out more. Some people seem to hint at things like quantum mechanics as being crack pot when dealing with speaker cables or even transistors. Its hard to tell what they mean.

DF96 23rd February 2011 05:18 PM

My hunch is that using quantum mechanics to talk about speaker cables is crackpot. I believe that speaker cables make a difference, but only in terms of conventional science such as L, R and C.

Using anything other than quantum mechanics to talk about the internal operation of transistors is also crackpot - transistors are quantum devices, although not perhaps in the sense meant by nutters. You don't need to know QM to use a transistor; you need QM to understand them or design them.

jrenkin 23rd February 2011 05:26 PM

Quantum interactions occur in everything all the time, speaker cables and inner ear hair follicles. They probably have more to do with the functions of many electronic devices, especially ones like our brains and cochlea, than we realize. What that has to do with audible effect in speaker cable is a bit more muddy. Remember, Newtonian mechanics are more than adequate to describe most gross phenomena, so even though quantum rules do effect pool balls and all, it just isn't noticeable.

7n7is 28th February 2011 06:07 PM

Strange quantum phenomena in transistors.
Tubes vs. transistors & quantization distortion - AudioKarma.org Home Audio Stereo Discussion Forums

DF96 28th February 2011 07:18 PM

I think the quick answer to the question posed in the first post there is "No", there is no quantum quantisation noise/distortion in transistors. As I said above, "transistors are quantum devices, although not perhaps in the sense meant by nutters". Because of electrostatic fields, electrons (or holes) in the base are correlated with those just outside the base. If this were not the case, transistors would suffer from bad shot noise (and valves even more so as their grid currents are smaller). I think this is just Malcolm Hawksford thinking out loud, trying to find an explanation for what he has already decided is true.

7n7is 28th February 2011 09:32 PM

Did you read the other references?

DF96 28th February 2011 09:51 PM

No.

7n7is 25th May 2011 03:43 PM

Hawksford seems to be a member of this forum.
http://www.diyaudio.com/forums/membe...hawksford.html


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