String evolution from BEC bosons to fermions?

Posted by DocN on July 20, 2002 at 14:46:55:

A "FERMI-DEGENERATE" ATOMIC GAS, a gas of fermion atoms (atoms composed of an odd total number of constituents--electrons, protons, and neutrons, each of which has half-integer spin) which essentially overlap with one another, has been created for the first time, promising tabletop insights into the basic properties of neutron stars, superfluid helium and all forms of superconductivity. Preparing this gas of fermions requires the exact same conditions as for preparing a Bose-Einstein condensate (BEC) of boson atoms, atoms composed of an even number of constituents with half-integer spin. One must cool a gas of atoms to the point that they exhibit wavelike properties and pack them densely enough so that the average distance between atoms is comparable to their "deBroglie wavelength." At this point, individual atoms become impossible to distinguish. If the atoms are bosons, they fall collectively into the lowest-energy (ground) state to form a BEC See-

http://www.aip.org/enews/physnews/1999/split/pnu447-1.htm

Many theoretical predictions have been made about the new physics generated by this radical change in geometry, including the remarkable possibility of making bosons behave like fermions [2] See-

http://www.sussex.ac.uk/physics/scoap/postgrad.html
Could this indicate a type of "string evolution" whereby a BEC state created fermionic behaving particles from its usual boson makeup, by the quantum mechanical code?

Doc

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• Bose-Einstein Condensation (BEC) in outerspace? -- DocN 7/21/02 (1)
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