Spin waves in a Bose-condensed atomic spin chain

Abstract

The spin dynamics of atomic Bose-Einstein condensates confined in a one-dimensional optical lattice is studied. The condensates at each lattice site behave like spin magnets that can interact with each other through both the light-induced dipole-dipole interaction and the static magnetic dipole-dipole interaction. We show how these site-to-site dipolar interactions can distort the ground state spin orientations and lead to the excitation of spin waves. The dispersion relation of the spin waves is studied and possible detection schemes are proposed.

4 pages, 3 figures, REVTeX4

References in corpus (3)

• All Optical Formation of an Atomic Bose-Einstein Condensate
• On the nature of spinor Bose-Einstein condensates in rubidium
• Ferromagnetism in a lattice of Bose condensates

Cited by in corpus (25)

• The physics of dipolar bosonic quantum gases
• Spinor Bose-Einstein condensates
• Quantum phases of dipolar bosons in optical lattices
• Roton-maxon spectrum and stability of trapped dipolar condensates
• Tuning the dipolar interaction in quantum gases
• Ground state and elementary excitations of single and binary Bose-Einstein condensates of trapped dipolar gases
• Observation of Feshbach resonances in an ultracold gas of ${}^{52}$Cr
• Quantum phases of dipolar spinor condensates
• Collapse of Bose-Einstein condensate with dipole-dipole interactions
• Magnetic Soliton and Soliton Collisions of Spinor Bose-Einstein Condensates in an Optical Lattice
• Dipolar and spinor bosonic systems
• Effective mass analysis of Bose-Einstein condensates in optical lattices -- stabilization and levitation
• Macroscopic spin tunneling and quantum critical behavior of a condensate in double-well potential
• Ferromagnetic phase transition and Bose-Einstein condensation in spinor Bose gases
• Magnetism in a lattice of spinor Bose condensates
• Domain-wall solutions of spinor Bose-Einstein condensates in an optical lattice
• Dark Soliton Interaction of Spinor Bose-Einstein Condensates in an Optical Lattice
• Interaction of a nonlinear spin wave and magnetic soliton in a uniaxial anisotropic ferromagnet
• Phenomenological theory of spinor Bose-Einstein condensates
• Density distributions for trapped one-dimensional spinor gases
• Dynamics of Dipolar Spinor Condensates
• Quantum tunneling of magnetization in dipolar spin-1 condensates under external fields
• Laser-catalyzed spin-exchange process in a Bose-Einstein condensate
• Incompressible states of a two-component Fermi gas in a double-well optical lattice
• Phase transitions in dipolar gases in optical lattices