Dynamical Instability of the XY Spiral State of Ferromagnetic Condensates
Cherng, R. W.
Stamper-Kurn, D. M.
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CitationCherng, R. W., V. Gritsev, D. M. Stamper-Kurn, and E. Demler. 2008. “ Dynamical Instability of the XY Spiral State of Ferromagnetic Condensates .” Physical Review Letters 100 (18) (May 7). doi:10.1103/physrevlett.100.180404.
AbstractWe calculate the spectrum of collective excitations of the XY spiral state prepared adiabatically or suddenly from a uniform ferromagnetic F ! 1 condensate. For spiral wave vectors past a critical value, spin wave excitation energies become imaginary indicating a dynamical instability. We construct phase diagrams as functions of spiral wave vector and quadratic Zeeman energy.
Citable link to this pagehttp://nrs.harvard.edu/urn-3:HUL.InstRepos:27889191
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