@article{173, author = {John Bohn}, title = {Cooper pairing in ultracold 40K using Feshbach resonances}, abstract = {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.}, year = {2000}, journal = {Physical Review A}, volume = {61}, pages = {053409}, month = {2000-04}, issn = {1050-2947}, doi = {10.1103/PhysRevA.61.053409}, }