Parametric amplification of matter waves in dipolar spinor Bose-Einstein condensates
arXiv:1005.2011 · doi:10.1103/PhysRevA.82.053608
Abstract
Spin-changing collisions may lead under proper conditions to the parametric amplification of matter waves in spinor Bose-Einstein condensates. Magnetic dipole-dipole interactions, although typically very weak in alkaline atoms, are shown to play a very relevant role in the amplification process. We show that these interactions may lead to a strong dependence of the amplification dynamics on the angle between the trap axis and the magnetic-field orientation. We analyze as well the important role played by magnetic-field gradients, which modify also strongly the amplification process. Magnetic-field gradients must be hence carefully controlled in future experiments, in order to observe clearly the effects of the dipolar interactions in the amplification dynamics.
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Cited by in corpus (10)
- Spinor Bose-Einstein condensates
- Dipolar and spinor bosonic systems
- Interaction-free measurements by quantum Zeno stabilisation of ultracold atoms
- Detecting entanglement structure in continuous many-body quantum systems
- How to observe dipolar effects in spinor Bose-Einstein condensates
- Precise measurements on a quantum phase transition in antiferromagnetic spinor Bose-Einstein condensates
- A spinor Bose-Einstein condensate phase-sensitive amplifier for SU(1,1) interferometry
- Spin mixing and protection of ferromagnetism in a spinor dipolar condensate
- Spontaneous symmetry breaking in spinor Bose-Einstein condensates
- Spin dynamics in a two dimensional quantum gas