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Dynamical preparation of stripe states in spin-orbit-coupled gases. / Cabedo, J.; Claramunt, J.; Celi, A.
In: Physical review a, Vol. 104, No. 3, L031305, 30.09.2021.Research output: Contribution to Journal/Magazine › Letter › peer-review
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TY - JOUR
T1 - Dynamical preparation of stripe states in spin-orbit-coupled gases
AU - Cabedo, J.
AU - Claramunt, J.
AU - Celi, A.
PY - 2021/9/30
Y1 - 2021/9/30
N2 - In spinor Bose-Einstein condensates, spin-changing collisions are a remarkable proxy to coherently realize macroscopic many-body quantum states. These processes have been, e.g., exploited to generate entanglement, to study dynamical quantum phase transitions, and proposed for realizing nematic phases in atomic condensates. In the same systems dressed by Raman beams, the coupling between spin and momentum induces a spin dependence in the scattering processes taking place in the gas. Here we show that, at weak couplings, such modulation of the collisions leads to an effective Hamiltonian which is equivalent to the one of an artificial spinor gas with spin-changing collisions that are tunable with the Raman intensity. By exploiting this dressed-basis description, we propose a robust protocol to coherently drive the spin-orbit-coupled condensate into the ferromagnetic stripe phase via crossing a quantum phase transition of the effective low-energy model in an excited state.
AB - In spinor Bose-Einstein condensates, spin-changing collisions are a remarkable proxy to coherently realize macroscopic many-body quantum states. These processes have been, e.g., exploited to generate entanglement, to study dynamical quantum phase transitions, and proposed for realizing nematic phases in atomic condensates. In the same systems dressed by Raman beams, the coupling between spin and momentum induces a spin dependence in the scattering processes taking place in the gas. Here we show that, at weak couplings, such modulation of the collisions leads to an effective Hamiltonian which is equivalent to the one of an artificial spinor gas with spin-changing collisions that are tunable with the Raman intensity. By exploiting this dressed-basis description, we propose a robust protocol to coherently drive the spin-orbit-coupled condensate into the ferromagnetic stripe phase via crossing a quantum phase transition of the effective low-energy model in an excited state.
KW - Excited states
KW - Ferromagnetic materials
KW - Ferromagnetism
KW - Phase transitions
KW - Quantum entanglement
KW - Statistical mechanics
KW - Atomic condensates
KW - Bose-Einstein condensates
KW - Many body
KW - Nematic phasis
KW - Quantum state
KW - Quantum-phase transition
KW - Scattering process
KW - Spin dependence
KW - Spin orbits
KW - Spinors
KW - Bose-Einstein condensation
U2 - 10.1103/PhysRevA.104.L031305
DO - 10.1103/PhysRevA.104.L031305
M3 - Letter
VL - 104
JO - Physical review a
JF - Physical review a
SN - 1050-2947
IS - 3
M1 - L031305
ER -