Dynamical Instability of the XY Spiral State of Ferromagnetic Condensates

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Dynamical Instability of the XY Spiral State of Ferromagnetic Condensates

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Title: Dynamical Instability of the XY Spiral State of Ferromagnetic Condensates
Author: Cherng, R. W.; Gritsev, V.; Stamper-Kurn, D. M.; Demler, Eugene A.

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Citation: Cherng, 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.
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Abstract: We 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.
Published Version: doi:10.1103/PhysRevLett.100.180404
Other Sources: http://arxiv.org/abs/0710.2499
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:27889191
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