Nonlinear Dynamic Phenomena in Macroscopic Tunneling
arXiv:0805.3730 · doi:10.1016/j.physd.2008.06.013
Abstract
Numerical simulations of the NLSE (or GPE) are presented demonstrating emission of short pulses of the matter (light) density formed in the course of tunneling in wave-guided light and/or trapped BEC. The phenomenon is observed under various conditions, for nonlinearities of different signs, zero nonlinearity included. We study, both numerically and analytically, pulsations of matter (light) remaining within the trap and use the results in order to induce emission of sequential pulses by properly narrowing the trap. This allows us to propose a mechanism for a realization of Atom Pulse Laser.
14 pages, 6 figures
References in corpus (5)
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- Bright solitons and self-trapping with a BEC of cold atoms in driven tilted optical lattices
- Nonlocality and fluctuations near the optical analog of a sonic horizon
- Dynamics of Macroscopic Tunneling in Elongated BEC
- Multiple-scale analysis for resonance reflection by a one-dimensional rectangular barrier in the Gross-Pitaevskii problem
- An atomic Fabry-Perot interferometer using a pulsed interacting Bose-Einstein condensate
- Jet-like tunneling from a trapped vortex
- Transmission resonances in above-barrier reflection of ultra-cold atoms by the Rosen-Morse potential
- Effect of spin-orbit coupling on tunnelling escape of Bose-Einstein condensate