Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2003-10-08
Phys. Rev. A 69, 033611 (2004)
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
Improved version for cond-mat/0211578
Scientific paper
10.1103/PhysRevA.69.033611
The spontaneous spin polarization and bifurcation delay in two-component Bose-Einstein condensates coupled with laser or/and radio-frequency pulses are investigated. We find that the bifurcation and the spontaneous spin polarization are determined by both physical parameters and relative phase between two condensates. Through bifurcations, the system enters into the spontaneous spin polarization regime from the Rabi regime. We also find that bifurcation delay appears when the parameter is swept through a static bifurcation point. This bifurcation delay is responsible for metastability leading to hysteresis.
Gao Kelin
Hai Wenhua
Lee Chaohong
Shi Lei
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