Faraday patterns in spin-orbit coupled Bose-Einstein condensates
arXiv:2206.10222 · doi:10.1103/PhysRevA.105.063319
Abstract
We study the Faraday patterns generated by spin-orbit-coupling induced parametric resonance in a spinor Bose-Einstein condensate with repulsive interaction. The collective elementary excitations of the Bose-Einstein condensate, including density waves and spin waves, are coupled as the result of the Raman-induced spin-orbit coupling and a quench of the relative phase of two Raman lasers without the modulation of any of the system's parameters. We observed several higher parametric resonance tongues at integer multiples of the driving frequency and investigated the interplay between Faraday instabilities and modulation instabilities when we quench the spin-orbit-coupled Bose-Einstein condensate from zero-momentum phase to plane-wave phase. If the detuning is equal to zero, the wave number of combination resonance barely changes as the strength of spin-orbit coupling increases. If the detuning is not equal to zero after a quench, a single combination resonance tongue will split into two parts.
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- Patterns, spin-spin correlations and competing instabilities in driven quasi-two-dimensional spin-1 Bose-Einstein condensates
- Stable-fixed-point description of square-pattern formation in driven two-dimensional Bose-Einstein condensates
- Stripe and checkerboard patterns in a stack of driven quasi-one-dimensional dipolar condensates
- Faraday waves on a bubble Bose-Einstein condensed binary mixture
- Patterning by dynamically unstable spin-orbit-coupled Bose-Einstein condensates
- Faraday patterns, spin textures, spin-spin correlations and competing instabilities in a driven spin-1 antiferromagnetic Bose-Einstein condensate
- Emergence of spin-mixed superstripe phases in spin-orbit coupled spin-1 condensate