Year: 2019
Type: article
Abstract: We report the formation of magnetic eigenstates assisted by naturally occurring particle dissipation in a Bose-Einstein condensate of spin-2 ^{87}Rb atoms. Although the atomic interaction energetically favors the nonferromagnetic state, we observed the spontaneous evolution of an unpolarized spin state into the transverse ferromagnetic state. Under such dynamics, the spin-dependent dissipation of atoms enhances the synchronization of the relative phases among five magnetic sublevels to promote magnetization. Through numerical simulations based on mean-field theory, we show that another exotic magnetic eigenstate, the cyclic state, can also be formed through the spin-dependent dissipation of atoms.
Source: Physical Review Letters
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Awards: 広帯域スクイーズド光源による低侵襲深部多光子分光, Self-bound quantum droplets in magnetic superfluids, Control of interaction in Bose-Einstein condensates by a dressing field, G5932935392, Selective quantum manipulation of atom wave packet by amplitude modulation of the optical lattice, Quantum control of many-body oscillators via cooperative effects
OpenAlex ID: W2950147151