2015/10/07 by Bryce Gadway · 91 citations
Computer Science · Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Lattice (music) #Optical lattice #Photon #Physics #Quantum Information and Cryptography #Quantum and electron transport phenomena #Quantum mechanics #Statistical physics #cond-mat.quant-gas #physics.atom-ph #quant-ph
paper · pdf · doi:10.1103/physreva.92.043606
published in Physical Review A 92(4) (American Physical Society) · 10 pages, 4 figures
openalex publication_date 2015/10/07 · arxiv created 2016/01/21 · arxiv updated 2016/01/25 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
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.