Spin transport in coupled spinor Bose gases

Journal Article · Thu Jul 15 00:00:00 EDT 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.82.011612· OSTI ID:21442882

McGuirk, J M ^[1]

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1. Department of Physics, Simon Fraser University, Burnaby, British Columbia V5A 1S6 (Canada)

We report direct measurements of spin transport in a trapped, partially condensed spinor Bose gas. Detailed analyses of spin flux in this out-of-equilibrium quantum gas are performed by monitoring the flow of atoms in different hyperfine spin states. The main mechanisms for motion in this system are exchange scattering and potential energy inhomogeneity, which lead to spin waves in the normal component and domain formation in the condensate. We find a large discrepancy in domain formation time scales with those predicted by potential-driven formation, indicating strong coupling of the condensate to the normal component spin wave.

• OSTI ID: 21442882
• Journal Information: Physical Review. A, Vol. 82, Issue 1; Other Information: DOI: 10.1103/PhysRevA.82.011612; (c) 2010 The American Physical Society; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
BOSE-EINSTEIN CONDENSATION
BOSE-EINSTEIN GAS
EQUILIBRIUM
POTENTIAL ENERGY
POTENTIALS
SCATTERING
SPIN
SPIN WAVES
SPINORS
TRAPPING
ANGULAR MOMENTUM
ENERGY
PARTICLE PROPERTIES