Abstract
We present a simple experimental scheme, based on standard atom-optics techniques, to design highly versatile model systems for the study of single-particle quantum transport phenomena. The scheme is based on a discrete set of free-particle momentum states that are coupled via momentum-changing two-photon Bragg transitions, driven by pairs of interfering laser beams. In the effective lattice models that are accessible, this scheme allows for single-site detection, as well as site-resolved and dynamical control over all system parameters. We discuss two possible implementations, based on state-preserving Bragg transitions and on state-changing Raman transitions, which, respectively, allow for the study of nearly arbitrary single-particle Abelian U(1) and non-Abelian U(2) lattice models.
Original language | English (US) |
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Article number | 043606 |
Journal | Physical Review A - Atomic, Molecular, and Optical Physics |
Volume | 92 |
Issue number | 4 |
DOIs | |
State | Published - Oct 7 2015 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics