Spontaneously Sliding Multipole Spin Density Waves in Cold Atoms.
Phys Rev Lett
; 132(14): 143402, 2024 Apr 05.
Article
em En
| MEDLINE
| ID: mdl-38640397
ABSTRACT
We report on the observation of spontaneously drifting coupled spin and quadrupolar density waves in the ground state of laser driven Rubidium atoms. These laser-cooled atomic ensembles exhibit spontaneous magnetism via light mediated interactions when submitted to optical feedback by a retroreflecting mirror. Drift direction and chirality of the waves arise from spontaneous symmetry breaking. The observations demonstrate a novel transport process in out-of-equilibrium magnetic systems.
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MEDLINE
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En
Ano de publicação:
2024
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Article