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Spontaneous magnetization and structure formation in a spin-1 ferromagnetic Bose-Einstein condensate

弘樹斎藤, Hiroki Saito

Jan 1, 20050 citations

Magnetic Excitations in Spinor Bose-Einstein Condensates

Dan Stamper-Kurn

Bulletin of the American Physical SocietyJun 3, 20140 citations

Magnetic solitons in spinor Bose-Einstein condensates

Xiao Chai, Di Lao, Kazuya Fujimoto +2 more

Bulletin of the American Physical SocietyJun 2, 20210 citations

Spontaneous Symmetry Breaking and Defect Formation in a Quenched Ferromagnetic Spinor Bose-Einstein Condensate

Lorraine E. Sadler, James Higbie, Mukund Vengalattore +2 more

Bulletin of the American Physical SocietyMar 15, 20060 citations

Spontaneously Modulated Spin Textures in a Dipolar Spinor Bose-Einstein Condensate

Mukund Vengalattore, Sabrina R. Leslie, Jennie Guzman +1 more

Helical spin textures in a 87Rb F=1 spinor Bose-Einstein condensate are found to decay spontaneously toward a spatially modulated structure of spin domains. The formation of this modulated phase is ascribed to magnetic dipolar interactions that energetically favor the short-wavelength domains over the long-wavelength spin helix. The reduction of dipolar interactions by a sequence of rf pulses results in a suppression of the modulated phase, thereby confirming the role of dipolar interactions in this process. This study demonstrates the significance of magnetic dipole interactions in degenerate 87Rb F=1 spinor gases.Helical spin textures in a 87Rb F=1 spinor Bose-Einstein condensate are found to decay spontaneously toward a spatially modulated structure of spin domains. The formation of this modulated phase is ascribed to magnetic dipolar interactions that energetically favor the short-wavelength domains over the long-wavelength spin helix. The reduction of dipolar interactions by a sequence of rf pulses results in a suppression of the modulated phase, thereby confirming the role of dipolar interactions in this process. This study demonstrates the significance of magnetic dipole interactions in degenerate 87Rb F=1 spinor gases.

arXiv:0712.4182Physical Review LettersMay 1, 2008265 citations

Magnetic domains in spinor Bose-Einstein condensates

Michał Matuszewski, Tristram J. Alexander, Yuri S. Kivshar

We discuss the structure of spin-1 Bose-Einstein condensates in the presence of a homogenous magnetic field. We demonstrate that phase separation can occur in the ground state of antiferromagnetic (polar) condensates, while the spin components of ferromagnetic condensates are always miscible, so that no phase separation occurs in them. Our analysis predicts that this phenomenon takes place when the energy of the lowest homogenous state is a concave function of the magnetization. We propose a method for creating spin domains by adiabatic switching-on of a magnetic field. We also discuss the phenomena of dynamical instability and spin domain formation.We discuss the structure of spin-1 Bose-Einstein condensates in the presence of a homogenous magnetic field. We demonstrate that phase separation can occur in the ground state of antiferromagnetic (polar) condensates, while the spin components of ferromagnetic condensates are always miscible, so that no phase separation occurs in them. Our analysis predicts that this phenomenon takes place when the energy of the lowest homogenous state is a concave function of the magnetization. We propose a method for creating spin domains by adiabatic switching-on of a magnetic field. We also discuss the phenomena of dynamical instability and spin domain formation.

Low Temperature PhysicsAug 1, 20102 citations

Formation of Magnetic Structure in a Spinor Bose Einstein Condensate

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