Static properties and spin dynamics of the ferromagnetic spin-1 Bose gas in a magnetic field
- 26 August 2005
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 72 (2), 023617
- https://doi.org/10.1103/physreva.72.023617
Abstract
The properties of spin-1 Bose gases with ferromagnetic interactions 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.Keywords
This publication has 35 references indexed in Scilit:
- Energies and damping rates of elementary excitations in spin-1 Bose-Einstein-condensed gasesPhysical Review A, 2003
- Polarization of Interacting Bosons with SpinPhysical Review Letters, 2002
- Transition temperature for the all-optical formation ofF=1spinor condensatePhysical Review A, 2002
- Structure of the perturbation series of the spin-1 Bose gas at low temperaturesPhysical Review A, 2002
- Conserving and gapless model of the weakly interacting Bose gasPhysical Review A, 2001
- Fragmented and Single Condensate Ground States of Spin-1 Bose GasPhysical Review Letters, 2000
- Ground-state energy of the spinor Bose-Einstein condensatePhysical Review A, 1999
- Observation of Metastable States in Spinor Bose-Einstein CondensatesPhysical Review Letters, 1999
- On the dynamics of continuous phase transitionsAnnals of Physics, 1974
- Note on the Bose-Einstein Integral FunctionsPhysical Review B, 1951