Physics – Quantum Physics
Scientific paper
2001-02-16
Phys. Rev. E 64, 056119 (2001)
Physics
Quantum Physics
36 pages including 6 pages of figures. To be published in PRE Nov. 1st, 2001. Revised version contains a discussion and extra
Scientific paper
10.1103/PhysRevE.64.056119
We have identified ultra-cold atoms in magneto-optical double-well potentials as a very clean setting in which to study the quantum and classical dynamics of a nonlinear system with multiple degrees of freedom. In this system, entanglement at the quantum level and chaos at the classical level arise from nonseparable couplings between the atomic spin and its center of mass motion. The main features of the chaotic dynamics are analyzed using action-angle variables and Poincare surfaces of section. We show that for the initial state prepared in current experiments [D. J. Haycock et al., Phys. Rev. Lett. 85, 3365 (2000)], the classical and quantum dynamics diverge, and the observed experimental dynamics are best described by quantum mechanics. Furthermore, the motion corresponds to tunneling through a dynamical potential barrier. The coupling between the spin and the motional subsystems, which are very different in nature from one another, leads to new questions regarding the transition from regular quantum dynamics to chaotic classical motion.
Alsing Paul M.
Deutsch Ivan H.
Ghose Shohini
No associations
LandOfFree
Atomic motion in magneto-optical double-well potentials: A new testing ground for quantum chaos does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Atomic motion in magneto-optical double-well potentials: A new testing ground for quantum chaos, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Atomic motion in magneto-optical double-well potentials: A new testing ground for quantum chaos will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-569186