Physics – Condensed Matter – Superconductivity
Scientific paper
2011-04-04
Physics
Condensed Matter
Superconductivity
5 pages, 2 figures; submitted version
Scientific paper
We find that a model Hamiltonian of s-wave superconductors in the presence of spin-orbit interactions and a Zeeman field is exactly solvable. Most intriguingly, based on the exact solutions, an unconventional type of Fulde-Ferrel-Larkin-Ovchinnikov (FFLO) ground state is rigorously revealed, in which the center-of-mass momentum of the fermion pair is proportional to the Zeeman field. We also elaborate on the drifting effect of the Zeeman field on the spin-orbit-coupled Bose-Einstein condensate.
Han Qiang
Liu Jia
Wang Zheng-Dong
Zhang Dan-Bo
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