Proper phase imprinting method for a dark soliton excitation in a superfluid Fermi mixture
arXiv:1406.6819 · doi:10.1103/PhysRevA.90.021604
Abstract
It is common knowledge that a dark soliton can be excited in an ultra-cold atomic gas by means of the phase imprinting method. We show that, for a superfluid fermionic mixture, the standard phase imprinting procedure applied to both components fails to create a state with symmetry properties identical to those of the dark soliton solution of the Bogoliubov-de Gennes equations. To produce a dark soliton in the BCS regime, a single component of the Fermi mixture should be phase imprinted only.
arXiv comment5 pages, 2 figures, version accepted for publication in Phys. Rev. A Rapid Communications
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- Lieb-Liniger model: emergence of dark solitons in the course of measurements of particle positions
- Moving solitons in a one-dimensional fermionic superfluid
- Raise and fall of a bright soliton in an optical lattice
- Quantum dark solitons in ultracold one-dimensional Bose and Fermi gases
- Snake instability of dark solitons across the BEC-BCS crossover: an effective field theory perspective
- Soliton core filling in superfluid Fermi gases with spin-imbalance
- Collective modes of a soliton train in a Fermi superfluid
- Dynamical generation of solitons in one-dimensional Fermi superfluids with and without spin-orbit coupling
- Protocol to engineer Fulde-Ferrell-Larkin-Ovchinnikov states in a cold Fermi gas
- Emergence of dark soliton signatures in a one-dimensional unpolarized attractive Fermi gas on a ring
- Correlations and synchronization in a Bose-Fermi mixture
- Drag-induced dynamical formation of dark solitons in Bose mixture on a ring
- Finding the stable mechanism of ring solitons in two-dimensional Fermi superfluids
- Vortices in Fermi gases with spin-dependent rotation potentials