An ultracold spinor Bose gas was used to achieve advanced experimental control and detection of an easy-plane ferromagnet, allowing observation of the system as it approaches equilibrium. The measurements revealed twofold superfluidity in the spin and density degrees of freedom with very different critical speeds.
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References
Stamper-Kurn, D. M. & Ueda, M. Spinor Bose gases: Symmetries, magnetism, and quantum dynamics. Rev. Mod. Phys. 85, 1191 (2013). A review article about spinor Bose gases.
Guzman, J. et al. Long-time-scale dynamics of spin textures in a degenerate F = 1 87Rb spinor Bose gas. Phys. Rev. A. 84, 063625 (2011). This paper reports the evaporative cooling of an easy-plane ferromagnetic system in 2D.
Prüfer, M. et al. Universal dynamics in a spinor Bose gas far from equilibrium. Nature 563, 217â220 (2018). This paper reports on the universal dynamics in the easy-plane ferromagnetic phase.
Kunkel, P. et al. Simultaneous readout of non-commuting collective spin observables beyond the standard quantum limit. Phys. Rev. Let. 123, 063603 (2019). This paper reports on the development of new detection schemes for the spin system.
Kubo, R. The fluctuation-dissipation theorem. Rep. Prog. Phys. 29, 255 (1966). A review article that presents the general ideas of the fluctuationâdissipation relation.
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This is a summary of: Prüfer, M. et al. Condensation and thermalization of an easy-plane ferromagnet in a spinor Bose gas. Nat. Phys. https://doi.org/10.1038/s41567-022-01779-6 (2022).
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Observing a dual superfluid in a ferromagnetic ultracold gas. Nat. Phys. 18, 1408â1409 (2022). https://doi.org/10.1038/s41567-022-01792-9
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DOI: https://doi.org/10.1038/s41567-022-01792-9
