Dynamics and thermodynamics in spinor quantum gases

Abstract

We discuss magnetism in spinor quantum gases theoretically and experimentally with emphasis on temporal dynamics of the spinor order parameter in the presence of an external magnetic field. In a simple coupled Gross-Pitaevskii picture we observe a dramatic suppression of spin dynamics due to quadratic Zeeman ''dephasing''. In view of an inhomogeneous density profile of the trapped condensate we present evidence of spatial variations of spin dynamics. In addition we study spinor quantum gases as a model system for thermodynamics of Bose-Einstein condensation. As a particular example we present measurements on condensate magnetisation due to the interaction with a thermal bath.

8 pages, 7 figures

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Cited by in corpus (28)

• Spinor Bose-Einstein condensates
• Coherent spin mixing dynamics in a spin-1 atomic condensate
• Magnetically tuned spin dynamics resonance
• Evolution of a spinor condensate: coherent dynamics, dephasing and revivals
• Nematic Order by Disorder in Spin-2 BECs
• Spontaneous magnetization and structure formation in a spin-1 ferromagnetic Bose-Einstein condensate
• Dipolar and spinor bosonic systems
• Dynamics of F=1 87Rb condensates at finite temperatures
• Number Fluctuations and Energy Dissipation in Sodium Spinor Condensates
• Spin-dependent inelastic collisions in spin-2 Bose-Einstein condensates
• Thermodynamics of a Bose Einstein condensate with free magnetization
• Photoassociation spectroscopy of a Spin-1 Bose-Einstein condensate
• Classical and quantum chaos in a three-mode bosonic system
• Coherent dynamics of domain formation in the Bose Ferromagnet
• Quantum Dynamics of Atomic Coherence in a Spin-1 Condensate: Mean-Field versus Many-Body Simulation
• Competition between Bose Einstein Condensation and spin dynamics
• Spin dynamics of a trapped spin-1 Bose Gas above the Bose-Einstein transition temperature
• Spin dynamics and structure formation in a spin-1 condensate in a magnetic field
• Interaction modulation in a long-lived Bose-Einstein condensate by rf coupling
• Dissipation-assisted coherence formation in a spinor quantum gas
• Spin evolution of spin-1 Bose-Einstein condensates
• Spin Caloritronics in Noncondensed Bose Gases
• Finite temperature ferromagnetic transition in coherently coupled Bose gases
• Phase-imprint induced domain formations and spin dynamics in spinor condensates
• Spin transport in coupled spinor Bose gases
• Hyperfine state entanglement of spinor BEC and scattering atom
• Population Dynamics of a Spin-1 Bose Gas Above the Bose-Einstein Transition Temperature
• Symmetry breaking and entropy production during the evolution of spinor Bose-Einstein condensate driven by coherent atom beam