Gao Meng
Nov4-06, 03:23 PM
Hello,
I have focused on the BEC-BCS crossover theory for several months, that
is about how two atomic fermions form a loose pair ( like cooper pair in
BCS theory), and transform to a bound molecular (could condensate like
bosons)by modulating the effective interactoin.
There are several theories to treat this crossover region, but I can`t tell
the
fundenmental differences among them. Then, I explore all the experimental
results in these years, from the atomic fermion pair condensation in the
crossover region first carrying out in Jan.2004, and the latest development
about vortices in MIT in May 2005 (http://cua.mit.edu/ketterle%5Fgroup/).
That`s helpful, but I also confused to face the theoretical approach.
I think this phenomenon is very fascinating, although there lack enough
explanation, but it will, at last, extend our understanding about the
mechanism of fermion pairing, and also the crossover of Bose-Einstein
statistics and Fermi-Dirac statistics. So, I decide to post it here and
appreciate your advice and comments.
Best regards,
Gao
I have focused on the BEC-BCS crossover theory for several months, that
is about how two atomic fermions form a loose pair ( like cooper pair in
BCS theory), and transform to a bound molecular (could condensate like
bosons)by modulating the effective interactoin.
There are several theories to treat this crossover region, but I can`t tell
the
fundenmental differences among them. Then, I explore all the experimental
results in these years, from the atomic fermion pair condensation in the
crossover region first carrying out in Jan.2004, and the latest development
about vortices in MIT in May 2005 (http://cua.mit.edu/ketterle%5Fgroup/).
That`s helpful, but I also confused to face the theoretical approach.
I think this phenomenon is very fascinating, although there lack enough
explanation, but it will, at last, extend our understanding about the
mechanism of fermion pairing, and also the crossover of Bose-Einstein
statistics and Fermi-Dirac statistics. So, I decide to post it here and
appreciate your advice and comments.
Best regards,
Gao