Laser spectroscopic probing of coexisting superfluid and insulating states of an atomic Bose–Hubbard system

A system of ultracold atoms in an optical lattice can be used as a quantum simulator for the Hubbard model with high controllability. Here, the authors report a laser spectroscopy study of an ytterbium ultracold bosonic gas across the weakly to strongly interacting regime.

Bibliographic Details
Main Authors: Shinya Kato, Kensuke Inaba, Seiji Sugawa, Kosuke Shibata, Ryuta Yamamoto, Makoto Yamashita, Yoshiro Takahashi
Format: Article
Language:English
Published: Nature Publishing Group 2016-04-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/ncomms11341