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Published on: March 30, 2017
Discrete chaotic states of a Bose-Einstein condensate
Wenhua Hai1, Shiguang Rong, Qianquan Zhu
1Key Laboratory of Low-dimensional Quantum Structures and Quantum Control of Ministry of Education and Department of Physics, Hunan Normal University, Changsha 410081, China. whhai2005@yahoo.com
Summary
This study explores spatial chaos in Bose-Einstein condensates using laser barriers. Researchers found chaotic states can be controlled by adjusting the laser barrier potential.
Area of Science:
- Quantum physics
- Nonlinear dynamics
Background:
- Bose-Einstein condensates (BECs) exhibit complex behaviors under external potentials.
- Spatial chaos in quantum systems is an area of active research.
Purpose of the Study:
- To investigate spatial chaos in a 1D attractive BEC interacting with a Gaussian laser barrier.
- To explore the influence of an optical lattice perturbation on chaotic states.
- To determine the experimental controllability of chaotic wave packets.
Main Methods:
- Numerical simulations were employed to illustrate chaotic and regular states.
- Analytical methods were used to construct bounded perturbed solutions.
- Parameter space analysis was conducted for low and high laser barrier regimes.
Main Results:
- Chaotic regions were identified in the parameter space for low laser barriers.
- Discrete chaotic states were constructed for high barrier potentials.
- Chaotic density profiles were numerically observed and analytically bounded configurations confirmed.
- Experimental control of chaotic wave packets via laser barrier adjustment was demonstrated.
Conclusions:
- Spatial chaos in BECs is sensitive to laser barrier parameters.
- The study provides insights into controlling chaotic quantum phenomena.
- Findings suggest potential for experimental manipulation of chaotic wave packets in BECs.
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