Static properties and spin dynamics of the ferromagnetic spin-1 Bose gas in magnetic field

Abstract

Properties of spin-1 Bose gases with ferromagnetic interaction in the presence of a nonzero magnetic field are studied. The equation of state and thermodynamic quantities are worked out with the help of a mean-field approximation. The phase diagram besides Bose-Einstein condensation contains a first order transition where two values of the magnetization coexist. The dynamics is investigated with the help of the Random Phase Approximation. The soft mode corresponding to the critical point of the magnetic phase transition is found to behave like in conventional theory.

arXiv comment8 pages and 3 figures included in text, submitted to Physical Review A

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Cited by in corpus (12)

• Coherent dynamics of domain formation in the Bose Ferromagnet
• Pairing, Ferromagnetism, and Condensation of a normal spin-1 Bose gas
• Three fluid hydrodynamics of spin-1 Bose-Einstein condensates
• Phases of a polar spin-1 Bose gas in a magnetic field
• Thermodynamic properties of the itinerant-boson ferromagnet
• Competition between paramagnetism and diamagnetism in charged Fermi gases
• Spin-1 bosons in an external magnetic field and a three body interaction potential
• Magnetic properties of charged spin-1 Bose gases with ferromagnetic coupling
• Berezinskii-Kosterlitz-Thouless transitions in an easy-plane ferromagnetic superfluid
• Spontaneous separation of two-component Fermi gases in a double-well trap
• Renormalization group approach to the spin-1 Bose gas
• Reentrance of Bose-Einstein condensation in spinor atomic gases in magnetic field