Coherent Control of Trapped Bosons

Details Coherent Control of Trapped Bosons Coherent Control of Trapped Bosons

2007-09-06

arxiv.org/abs/0709.0754v5

Phys Rev A 77, 033418 (2008)

Physics

Atomic Physics

17 figures, Appended a paragraph on section 1 and explained details behind the hamiltonian on section 5

Scientific paper

10.1103/PhysRevA.77.033418

We investigate the quantum behavior of a mesoscopic two-boson system produced by number-squeezing ultracold gases of alkali metal atoms. The quantum Poincare maps of the wavefunctions are affected by chaos in those regions of the phase space where the classical dynamics produces features that are comparable to hbar. We also investigate the possibility for quantum control in the dynamics of excitations in these systems. Controlled excitations are mediated by pulsed signals that cause Stimulated Raman Adiabatic passage (STIRAP) from the ground state to a state of higher energy. The dynamics of this transition is affected by chaos caused by the pulses in certain regions of the phase space. A transition to chaos can thus provide a method of controlling STIRAP.

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