Enhanced Quantum Reflection of Matter-Wave Solitons
arXiv:cond-mat/0505697 · doi:10.1209/epl/i2005-10408-4
Abstract
Matter-wave bright solitons are predicted to reflect from a purely attractive potential well although they are macroscopic objects with classical particle-like properties. The non-classical reflection occurs at small velocities and a pronounced switching to almost perfect transmission above a critical velocity is found, caused by nonlinear mean-field interactions. Full numerical results from the nonlinear Schrödinger equation are complimented by a two-mode variational calculation to explain the predicted effect, which can be used for velocity filtering of solitons. The experimental realization with laser-induced potentials or two-component Bose-Einstein condensates is suggested.
7 pages, 3 figures, to be published in Europhys. Lett
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- Stability of matter-wave solitons in a density-dependent gauge theory
- Interaction of One-Dimensional Quantum Droplets with Potential Wells and Barriers
- Breathing patterns in nonlinear relaxation
- Directional flow of solitons with asymmetric potential wells: Soliton diode
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- Discrete chaotic states of a Bose-Einstein condensate
- Quantum limits to center-of-mass measurements
- Matter wave soliton bouncer
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- Transmission resonances in above-barrier reflection of ultra-cold atoms by the Rosen-Morse potential
- High-speed soliton ejection generated from the scattering of bright solitons by modulated reflectionless potential wells
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- Unidirectional segregation of Bright-Bright soliton through a -symmetric potential
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- Matter wave propagation above a step potential within the cubic-nonlinear Schrödinger equation