Hannover 2016 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 70: Quantum Gases: Bosons VI

Q 70.6: Talk

Friday, March 4, 2016, 15:45–16:00, f342

The effects of curvature in deformed optical lattices — •Nikodem Szpak — Fakultät für Physik, Universität Duisburg-Essen

Special designs of optical lattices, involving complex or unitary matrix-valued tunneling amplitudes, enable for various realizations of effective gauge fields on the lattice. Analogously, local deformations of the optical lattices influencing the real part of the tunneling amplitudes can be interpreted in terms of an effective metric of a curved space. We review some setups, including finite-width laser beams or traps, giving rise to such artificial curvature and discuss interesting phenomena associated with it, like ground state (de)localization or focusing of traveling waves.