TY - JOUR
AU - John Bohn
AB - We point out that the fermionic isotope  40 K  is a likely candidate for the formation of Cooper pairs in an ultracold atomic gas. Specifically, in an optical trap that simultaneously traps the spin states  | 9 / 2 , − 9 / 2 ⟩  and  | 9 / 2 , − 7 / 2 ⟩ ,  there exists a broad magnetic-field Feshbach resonance at  B = 196 + 9 − 21  G that can provide the required strong attractive interaction between atoms. An additional resonance, at  B = 191 + 5 10  G, could generate p-wave pairing between identical  | 9 / 2 , − 7 / 2 ⟩  atoms. A Cooper-paired degenerate Fermi gas could thus be constructed with existing ultracold-atom technology.
BT - Physical Review A
DA - 2000-04
DO - 10.1103/PhysRevA.61.053409
N2 - We point out that the fermionic isotope  40 K  is a likely candidate for the formation of Cooper pairs in an ultracold atomic gas. Specifically, in an optical trap that simultaneously traps the spin states  | 9 / 2 , − 9 / 2 ⟩  and  | 9 / 2 , − 7 / 2 ⟩ ,  there exists a broad magnetic-field Feshbach resonance at  B = 196 + 9 − 21  G that can provide the required strong attractive interaction between atoms. An additional resonance, at  B = 191 + 5 10  G, could generate p-wave pairing between identical  | 9 / 2 , − 7 / 2 ⟩  atoms. A Cooper-paired degenerate Fermi gas could thus be constructed with existing ultracold-atom technology.
PY - 2000
EP - 053409
T2 - Physical Review A
TI - Cooper pairing in ultracold 40K using Feshbach resonances
VL - 61
SN - 1050-2947
ER -