Feshbach spectroscopy of a K-Rb atomic mixture
Authors: Ferlaino F., D’Errico C., Roati G., Zaccanti M., Inguscio M., Modugno G., Simoni A.
Autors Affiliation: LENS and Dipartimento di Fisica, Università di Firenze, and INFM-CNR, Via Nello Carrara 1, 50019 Sesto Fiorentino, Italy;
Laboratoire de Physique des Atomes, Lasers, Molecules et Sufaces, UMR 6627 du CNRS and Université de Rennes, France
Abstract: We perform extensive magnetic Feshbach spectroscopy of an ultracold mixture of fermionic K-40 and bosonic Rb-87 atoms. The magnetic-field locations of 13 interspecies resonances are used to construct a quantum collision model able to predict accurate collisional parameters for all K-Rb isotopic pairs. In particular, we determine the interspecies s-wave singlet and triplet scattering lengths for the K-40-Rb-87 mixture as (-108 +/- 3)a(0) and (-205 +/- 5)a(0), respectively. We also predict accurate scattering lengths and the position of Feshbach resonances for the other K-Rb isotopic pairs. We discuss the consequences of our results for current and future experiments with ultracold K-Rb mixtures.
Journal/Review: PHYSICAL REVIEW A
Volume: 73 Pages from: 040702-1 to: 040702-4
KeyWords: Atomic mixture; Feshbach resonances; Feshbach spectroscopy; Ultracold K-Rb mixtures, Collision avoidance; Potassium; Quantum theory; Resonance; Rubidium; Spectroscopic analysis, Fermions; Ultracold gasesDOI: 10.1103/PhysRevA.73.040702Citations: 135data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2023-05-21References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here