Probing Photoinduced Two-Body Loss of Ultracold Nonreactive Bosonic Na23Rb87 and Na23K39 Molecules

authored by: Philipp Gersema, Kai K. Voges, Mara Meyer zum Alten Borgloh, Leon Koch, Torsten Hartmann, Alessandro Zenesini, Silke Ospelkaus, Alessandro Zenesini, Junyu Lin, Dajun Wang
Abstract: We probe photoinduced loss for chemically stable bosonic and molecules in chopped optical dipole traps, where the molecules spend a significant time in the dark. We expect the effective two-body decay to be significantly suppressed due to the small expected complex lifetimes of about 13 and for and , respectively. However, instead we do not observe any suppression of the two-body loss in parameter ranges where large loss suppressions are expected. We believe these unexpected results are most probably due to drastic underestimation of the complex lifetime by at least 1-2 orders of magnitude.
Organisation(s): Institute of Quantum Optics
QuantumFrontiers
CRC 1227 Designed Quantum States of Matter (DQ-mat)
External Organisation(s): University of Trento
The Chinese University of Hong Kong
Type: Article
Journal: Physical review letters
Volume: 127
ISSN: 0031-9007
Publication date: 11.10.2021
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Physics and Astronomy(all)
Electronic version(s): https://arxiv.org/abs/2103.00510 (Access: Open)
https://doi.org/10.1103/PhysRevLett.127.163401 (Access: Closed)

BibTeX

@article{a7e089c2f6094a34a67d44ffb7fe8e9b,
title = "Probing Photoinduced Two-Body Loss of Ultracold Nonreactive Bosonic Na23Rb87 and Na23K39 Molecules",
abstract = "We probe photoinduced loss for chemically stable bosonic and molecules in chopped optical dipole traps, where the molecules spend a significant time in the dark. We expect the effective two-body decay to be significantly suppressed due to the small expected complex lifetimes of about 13 and for and , respectively. However, instead we do not observe any suppression of the two-body loss in parameter ranges where large loss suppressions are expected. We believe these unexpected results are most probably due to drastic underestimation of the complex lifetime by at least 1-2 orders of magnitude.",
author = "Philipp Gersema and Voges, {Kai K.} and {Meyer zum Alten Borgloh}, Mara and Leon Koch and Torsten Hartmann and Alessandro Zenesini and Silke Ospelkaus and Alessandro Zenesini and Junyu Lin and Dajun Wang",
note = "Funding Information: The Hanover group thanks Leon Karpa for stimulating discussions and Jule Heier for laboratory assistance. The group gratefully acknowledges financial support from the Deutsche Forschungsgemeinschaft (DFG) through the collaborative research centre SFB 1227 DQ-mat, the Research Unit 2247 project E05 and Germanys Excellence Strategy—EXC-2123/1 QuantumFrontiers. P. G. thanks the DFG for financial support through RTG 1991. The Hong Kong team thanks Hua Guo and Daiqian Xie for the new complex lifetime calculation, and Guanghua Chen and Mucan Jin for laboratory assistance. The team was supported by the Hong Kong RGC General Research Fund (grants 14301119, 14301818 and 14301815) and the Collaborative Research Fund C6005-17G. ",
year = "2021",
month = oct,
day = "11",
doi = "10.1103/PhysRevLett.127.163401",
language = "English",
volume = "127",
journal = "Physical review letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "16",
}