Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1103/PhysRevLett.71.2204 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Experimental realization of multiple frequency photoassociation in an optical dipole trap.
J Chem Phys
October 2024
CAS Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei, China.
The generation of cold molecules is an important topic in the field of cold atoms and molecules and has received relevant advanced research attention in ultracold chemistry, quantum computation, and quantum metrology. With a high atomic phase space density, optical dipole traps have been widely used to prepare, trap, and study cold molecules. In this work, Rb2 molecules were photoassociated in a magneto-optical trap to obtain a precise rovibrational spectrum, which provided accurate numerical references for the realization of multiple frequency photoassociation.
View Article and Find Full Text PDFAnalyzing the photoassociation spectrum of ultracold 85Rb 133Cs molecule in (3)3Σ+ state.
J Chem Phys
March 2024
School of Physics, Dalian University of Technology, Dalian 116024, China.
We establish a theoretical model to analyze the photoassociative spectroscopy of 85Rb 133Cs molecules in the (3)3Σ+ state. The vibrational energy, spin-spin coupling constant, and hyperfine interaction constant of the (3)3Σ+ state are determined based on nine observed vibrational levels. Consequently, the Rydberg-Klein-Rees potential energy curve of the (3)3Σ+ state is obtained and compared with the ab initial potential energy curve.
View Article and Find Full Text PDFConstructive Quantum Interference in Photochemical Reactions.
J Chem Theory Comput
December 2021
Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States.
Interferences emerge when multiple pathways coexist together, leading toward the same result. Here, we report a theoretical study for a reaction scheme that leads to constructive quantum interference in a photoassociation (PA) reaction of a Rb Bose-Einstein condensate where the reactant spin state is prepared in a coherent superposition of multiple bare spin states. This is achieved by changing the reactive scattering channel in the PA reaction.
View Article and Find Full Text PDFBichromatic Photoassociation Spectroscopy for the Determination of Rotational Constants of Cs 0 u + Long-Range State below the 6S + 6P Asymptote.
Molecules
August 2020
State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, 92 Wucheng Road, Taiyuan 030006, China.
This article demonstrates new observation of the high-resolution ro-vibrational bichromatic photoassociation spectra (BPAS) of Cs in the 0u+ long-range state below the asymptotes 6S + 6P. By combining with a modulation spectroscopic technique, precise references of the frequency differences have been engineered through the BPAS, with which the rotational constants of low-lying vibrational levels of the Cs0u+ long-range state have been accurately determined by fitting the frequency differences to the non-rigid-rotor model. The rotational constants for the newly observed seven ro-vibrational levels are summarized and disagreement for the level ῦ = 498 is clarified.
View Article and Find Full Text PDFContinuous Loading of Ultracold Ground-State ^{85}Rb_{2} Molecules in a Dipole Trap Using a Single Light Beam.
Phys Rev Lett
March 2019
Instituto de Física de São Carlos, Universidade de São Paulo, Caixa Postal 369, 13560-970, São Carlos, São Paulo, Brazil.
We have developed an approach to continuously load ultracold ^{85}Rb_{2} vibrational ground-state molecules into a crossed optical dipole trap from a magneto-optical trap. The technique relies on a single high-power light beam with a broad spectrum superimposed onto a narrow peak at an energy of about 9400 cm^{-1}. This single laser source performs all the required steps: the short-range photoassociation creating ground-state molecules after radiative emission, the cooling of the molecular vibrational population down to the lowest vibrational level v_{X}=0, and the optical trapping of these molecules.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!