Hyperfine dependent atom-molecule loss analyzed by the analytic solution of few-body loss equations

authored by: Kai K. Voges, Philipp Gersema, Torsten Hartmann, Silke Ospelkaus-Schwarzer, Alessandro Zenesini
Abstract: We prepare mixtures of ultracold \(^{39}\)K atoms in various hyperfine spin states and \(^{23}\)Na\(^{39}\)K molecules in an optical dipole trap at a fixed magnetic field and study inelastic two-body atom-molecule collisions. We observe atom-molecule loss that is hyperfine dependent with a two-body loss rate far below the universal limit. We analyze the two-body loss dynamics based on the derivation of general and easy applicable analytic solutions for the differential equations describing the loss of an arbitrary number \(\gamma\) of particles in a single collisional event.
Organisation(s): Institute of Quantum Optics
QuantumFrontiers
CRC 1227 Designed Quantum States of Matter (DQ-mat)
External Organisation(s): Trento Institute for Fundamental Physics and Application
Type: Article
Journal: Physical Review Research
Volume: 4
No. of pages: 6
ISSN: 2643-1564
Publication date: 06.2022
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: General Physics and Astronomy
Electronic version(s): https://doi.org/10.48550/arXiv.2109.03605 (Access: Open)
https://doi.org/10.1103/PhysRevResearch.4.023184 (Access: Open)

BibTeX

@article{14e1e6fba7994244bf9b5424fda6502a,
title = "Hyperfine dependent atom-molecule loss analyzed by the analytic solution of few-body loss equations",
abstract = " We prepare mixtures of ultracold \(^{39}\)K atoms in various hyperfine spin states and \(^{23}\)Na\(^{39}\)K molecules in an optical dipole trap at a fixed magnetic field and study inelastic two-body atom-molecule collisions. We observe atom-molecule loss that is hyperfine dependent with a two-body loss rate far below the universal limit. We analyze the two-body loss dynamics based on the derivation of general and easy applicable analytic solutions for the differential equations describing the loss of an arbitrary number \(\gamma\) of particles in a single collisional event. ",
keywords = "physics.atom-ph, cond-mat.quant-gas",
author = "Voges, {Kai K.} and Philipp Gersema and Torsten Hartmann and Silke Ospelkaus-Schwarzer and Alessandro Zenesini",
note = "Funding Information: We thank Goulven Qu{\'e}m{\'e}ner for enlightening comments and Jeremy Hutson and Matthew Frye for insightful concep- tions. We gratefully acknowledge financial support from the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) through CRC 1227 DQ-mat Project No. A03, FOR2247 Project E5 and under Germany{\textquoteright}s Excellence Strat- egy - EXC-2123 Quantum Frontiers 390837967. P.G. thanks the Deutsche Forschungsgemeinschaft for financial support through Research Training Group 1991. A.Z. thanks Provincia Autonoma di Trento for financial support.",
year = "2022",
month = jun,
doi = "10.48550/arXiv.2109.03605",
language = "English",
volume = "4",
journal = "Physical Review Research",
issn = "2643-1564",
publisher = "American Physical Society",
number = "2",
}