Ferromagnetic Resonance in Spinor Dipolar Bose--Einstein Condensates

Details Ferromagnetic Resonance in Spinor Dipolar Bose--Einstein Condensates Ferromagnetic Resonance in Spinor Dipolar Bose--Einstein Condensates

2010-10-06

arxiv.org/abs/1010.1075v1

Phys. Rev. A 83, 013618 (2011)

Physics

Condensed Matter

Quantum Gases

8 pages, 10 figures

Scientific paper

We used the Gross--Pitaevskii equations to investigate ferromagnetic resonance in spin-1 Bose--Einstein condensates with a magnetic dipole-dipole interaction. By introducing the dipole interaction, we obtained equations similar to the Kittel equations used to represent ferromagnetic resonance in condensed matter physics. These equations indicated that the ferromagnetic resonance originated from dipolar interaction, and that the resonance frequency depended upon the shape of the condensate. Furthermore, spin currents driven by spin diffusions are characteristic of this system.

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