Work

Interacting Wannier functions in a superlattice: An iterative method

Year: 2025

Type: article

Abstract: We present a method to compute interacting Wannier functions in an optical superlattice for cold atom gas experiments. We start from a noninteracting Wannier function obtained from the band projected position operator method and perform Trotter method to compute the interacting Wannier function. Then, we use this function to compute the on-site interaction strength in a superlattice, compare the result to a measurement, and find good agreement between simulation and data.

Source: Physical Review A

DOI: 10.1103/4s97-x2h7

Author: Jens Samland

Institution: University of Bonn

Language: English

Topic: Cold Atom Physics and Bose-Einstein Condensates

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $2,675

Funder: Deutsche Forschungsgemeinschaft