Journal
PHYSICAL REVIEW A
Volume 105, Issue 5, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.105.L051303
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Funding
- [ANR-21-CE47-0009]
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The spin-mixing dynamics of a one-dimensional strongly repulsive Fermi gas under harmonic confinement was studied, revealing superdiffusion, spin-dipolar large amplitude oscillations, and thermalization. A universal scaling of the oscillations with particle number N-1/4 was reported.
We study the spin-mixing dynamics of a one-dimensional strongly repulsive Fermi gas under harmonic confinement. By employing a mapping onto an inhomogeneous isotropic Heisenberg model and the symmetries under particle exchange, we follow the dynamics until very long times. Starting from an initial spin-separated state, we observe superdiffusion, spin-dipolar large amplitude oscillations, and thermalization. We report a universal scaling of the oscillations with particle number N-1/4. Our Letter puts forward one-dimensional correlated fermions as a different system to observe the emergence of nonequilibrium universal features.
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