We demonstrate the formation of a single RbCs molecule during the merging of two optical tweezers, one containing a single Rb atom and the other a single Cs atom. Both atoms are initially predominantly in the motional ground states of their respective tweezers. We confirm molecule formation and establish the state of the molecule formed by measuring its binding energy. We find that the probability of molecule formation can be controlled by tuning the confinement of the traps during the merging process, in good agreement with coupled-channel calculations. We show that the conversion efficiency from atoms to molecules using this technique is comparable to magnetoassociation.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1103/PhysRevLett.130.223401 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Towards Point-of-Care Single Biomolecule Detection Using Next Generation Portable Nanoplasmonic Biosensors: A Review.
Biosensors (Basel)
December 2024
Department of Mechanical and Mechatronics Engineering, University of Waterloo, 200 University Ave. West, Waterloo, ON N2L 3G1, Canada.
Over the past few years, nanoplasmonic biosensors have gained widespread interest for early diagnosis of diseases thanks to their simple design, low detection limit down to the biomolecule level, high sensitivity to even small molecules, cost-effectiveness, and potential for miniaturization, to name but a few benefits. These intrinsic natures of the technology make it the perfect solution for compact and portable designs that combine sampling, analysis, and measurement into a miniaturized chip. This review summarizes applications, theoretical modeling, and research on portable nanoplasmonic biosensor designs.
View Article and Find Full Text PDFEffects of red blood cell transfusion on cerebral hemodynamics of preterm neonates.
Neurophotonics
October 2024
NICU Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico Milan, Milan, Italy.
Significance: Anemia is a common problem in preterm neonates, and red blood cell transfusion (RBCT) is used to improve oxygen delivery. However, RBCT is associated with complications, although an increase in cerebral oxygenation has been documented, and no universally accepted biomarker for the need for transfusion (i.e.
View Article and Find Full Text PDFDigital Twin for a Frequency Mixer Used as a Phase Sensor.
Sensors (Basel)
November 2024
Instituto Português da Qualidade, Rua António Gião, 2, 2829-513 Caparica, Portugal.
The Portuguese Institute for Quality is responsible for the realization and dissemination of the frequency standard in Portugal. There are several techniques for frequency transfer, but we use a frequency mixer to detect phase variations between two light signals with different wavelengths, traveling along an optical fibre. In this paper, we present the development of a digital twin (DT) that replicates the use of a frequency mixer to improve the frequency transfer problem.
View Article and Find Full Text PDFThe Far-Infrared Absorption Spectrum of HDO: Experimental Line Positions, Accurate Empirical Energy Levels, and a Recommended Line List.
Molecules
November 2024
University Grenoble Alpes, CNRS, LIPhy, 38000 Grenoble, France.
The far-infrared absorption spectrum of monodeuterated water vapor, HDO, is analyzed using three high-sensitivity absorption spectra recorded by high-resolution Fourier transform spectroscopy at the SOLEIL synchrotron facility. The gas sample was obtained using a 1:1 mixture of HO and DO leading to a HDO abundance close to 50%. The room temperature spectra recorded in the 50-720 cm range cover most of the rotational band.
View Article and Find Full Text PDFMerging toroidal dipole bound states in the continuum without up-down symmetry in Lieb lattice metasurfaces.
Nanophotonics
April 2024
Department of Electrical and Computer Engineering, Vanderbilt University, Nashville, TN, 37235, USA.
The significance of bound states in the continuum (BICs) lies in their potential for theoretically infinite quality factors. However, their actual quality factors are limited by imperfections in fabrication, which lead to coupling with the radiation continuum. In this study, we present a novel approach to address this issue by introducing a merging BIC regime based on a Lieb lattice.
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!