Coherent Transport of Neutral Atoms in Spin-Dependent Optical Lattice Potentials

2003/01/11 by Olaf Mandel, Markus Greiner, Artur Widera +4 · 4 citations
Computer Science · Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Quantum Information and Cryptography #Quantum optics and atomic interactions #cond-mat.soft #physics.atom-ph

paper · pdf · doi:10.1103/physrevlett.91.010407

4 pages, 6 figures

arxiv created 2003/01/11 · openalex publication_date 2003/07/03 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30

Abstract

We demonstrate the controlled coherent transport and splitting of atomic wave packets in spin-dependent optical lattice potentials. Such experiments open intriguing possibilities for quantum state engineering of many body states. After first preparing localized atomic wave functions in an optical lattice through a Mott insulating phase, we place each atom in a superposition of two internal spin states. Then state selective optical potentials are used to split the wave function of a single atom and transport the corresponding wave packets in two opposite directions. Coherence between the wave packets of an atom delocalized over up to seven lattice sites is demonstrated.

Citations

• Josephson Junction Arrays with Bose-Einstein Condensates
• Spatial Resolution of Spin Waves in an Ultracold Gas

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