Coherent control of self-trapping of cold bosonic atoms

2006/09/27 by C. E. Creffield
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Quantum Mechanics and Applications #Strong Light-Matter Interactions #cond-mat.other

paper · pdf · doi:10.1103/physreva.75.031607

published as Phys. Rev. A 75, 031607(R) (2007). · 4 pages, 5 EPS figures

arxiv created 2006/09/27 · openalex publication_date 2007/03/29 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We study the behavior of ultracold bosonic atoms held in an optical lattice. We first show how a self-trapping transition can be induced in the system either by increasing the number of atoms occupying a lattice site or by raising the interaction strength above a critical value. We then investigate how applying a periodic driving potential to the self-trapped state can be used to coherently control the emission of a precise number of correlated bosons from the trapping site. This allows the preparation and transport of entangled bosonic states, which are of great relevance to novel technologies such as quantum-information processing.

Citations

• Imaging the Mott Insulator Shells by Using Atomic Clock Shifts
• Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
• Preparation of a quantum state with one molecule at each site of an optical lattice
• Nonlinear Self-Trapping of Matter Waves in Periodic Potentials
• Analog of Photon-Assisted Tunneling in a Bose-Einstein Condensate
• Repulsively bound atom pairs in an optical lattice