Full-time dynamics of modulational instability in spinor Bose-Einstein condensates
نویسندگان
چکیده
منابع مشابه
Modulational instability of spinor condensates
We demonstrate, analytically and numerically, that the ferromagnetic phase of the spinor Bose-Einstein condenstate may experience modulational instability of the ground state leading to a fragmentation of the spin domains. Together with other nonlinear effects in the atomic optics of ultra-cold gases (such as coherent photoassociation and four-wave mixing) this effect provides one more analogy ...
متن کاملChaotic dynamics in spinor Bose–Einstein condensates
Concentrating on experimentally relevant cases we discuss nonlinear dynamics and deterministic chaos in F = 1 and F = 2 spinor Bose–Einstein condensates. A thorough numerical and analytical treatment of the equations of motion of symmetric F = 2 spin dynamics in the single-mode approximation elucidates the complex dynamics and uncovers regions of classical chaos in this important quantum gas sy...
متن کاملModulational Instability in Bose-Einstein Condensates under Feshbach Resonance Management
We investigate the modulational instability of nonlinear Schrödinger equations with periodic variation of their coefficients. In particular, we focus on the case of the recently proposed, experimentally realizable protocol of Feshbach Resonance Management for Bose-Einstein condensates. We derive the corresponding linear stability equation analytically and we show that it can be reduced to a Kro...
متن کاملRotonlike instability and pattern formation in spinor Bose-Einstein condensates.
We show that metastable phases of an antiferromagnetic spin-1 condensate in a simple model with pure contact interactions can exhibit a rotonlike minimum in the excitation spectrum. The introduction of a magnetic field gives rise to the instability of roton modes, which can lead to spontaneous emergence of regular periodic, polygonal, polyhedral, or crystalline patterns, as shown in numerical s...
متن کاملVortex-lattice dynamics in rotating spinor Bose-Einstein condensates.
We observe interlaced square vortex lattices in rotating dilute-gas spinor Bose-Einstein condensates (BEC). After preparing a hexagonal vortex lattice in a one-component BEC in an internal atomic state |1, we coherently transfer a fraction of the superfluid to a different state |2. The subsequent evolution of this pseudo-spin-1/2 superfluid towards a state of offset square lattices involves an ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review A
سال: 2007
ISSN: 1050-2947,1094-1622
DOI: 10.1103/physreva.76.013626