Nonlinear Dynamic Phenomena in Macroscopic Tunneling
G. Dekel, O.V. Farberovich, A. Soffer, V. Fleurov
TL;DR
This paper investigates nonlinear phenomena in macroscopic tunneling, demonstrating pulse emission in wave-guided light and BEC through numerical simulations and proposing a mechanism for an atom pulse laser.
Contribution
It introduces a new mechanism for generating sequential pulses in BEC and light via trap manipulation, supported by numerical and analytical studies.
Findings
Emission of short matter/light pulses during tunneling
Pulsations within the trap can be controlled to induce pulse emission
Proposes a feasible mechanism for an atom pulse laser
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.
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