Raman superradiance and spin lattice of ultracold atoms in optical cavities
Author
Safaei, S.
Müstecaplioǧlu, Ö. E.
Tanatar, Bilal
Date
2013Source Title
New Journal of Physics
Electronic ISSN
1367-2630
Publisher
IOP Institute of Physics Publishing
Volume
15
Pages
083037-1 - 083037-14
Language
English
Type
ArticleItem Usage Stats
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Abstract
We investigate the synthesis of a hyperfine spin lattice in an atomic Bose-Einstein condensate, with two hyperfine spin components, inside a one-dimensional high-finesse optical cavity, using off-resonant superradiant Raman scattering. Spatio-temporal evolution of the relative population of the hyperfine spin modes is examined numerically by solving the coupled cavity-condensate mean-field equations in the dispersive regime. We find, analytically and numerically, that beyond a certain threshold of the transverse laser pump, Raman superradiance and self-organization of the hyperfine spin components occur simultaneously and as a result a magnetic lattice is formed. The effects of an extra laser pump parallel to the cavity axis and the time dependence of the pump strength on the synthesis of a sharper lattice are also addressed.
Keywords
Atomic Bose-Einstein condensateDispersive regime
Magnetic lattice
Mean-field equations
Optical cavities
Self organizations
Spatiotemporal evolution
Ultracold atoms
Bose-Einstein condensation
Pumping (laser)
Radiation
Superradiance
Optical lattices