Laser cooled atoms have proven transformative for precision metrology, playing a pivotal role in state-of-the-art clocks and interferometers and having the potential to provide a step-change in our modern technological capabilities. To successfully explore their full potential, laser cooling platforms must be translated from the laboratory environment and into portable, compact quantum sensors for deployment in practical applications. This transition requires the amalgamation of a wide range of components and expertise if an unambiguously chip-scale cold atom sensor is to be realized. We present recent developments in cold-atom sensor miniaturization, focusing on key components that enable laser cooling on the chip-scale. The design, fabrication, and impact of the components on sensor scalability and performance will be discussed with an outlook to the next generation of chip-scale cold atom devices.
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http://dx.doi.org/10.1063/5.0101628 | DOI Listing |
J Phys Condens Matter
January 2025
Southern University of Science and Technology, Southern University of Science and Technology, Shenzhen, 518055, CHINA.
The measurement of topological numbers is crucial in the research of topological systems. In this article, we propose a protocol for obtaining the topological number (specifically, winding numbers in this case) of an unknown one-dimensional (1D) two-band topological system by comparing it with a known topological system. We consider two 1D two-band topological systems and their Bloch wavefunction overlap and verify a theorem.
View Article and Find Full Text PDFTraditional magneto-optical traps are often bulky and complex, which limits their application in portable and scalable technologies. In this study, we propose a method for generating cold atoms using a transmission-grating-based magneto-optical trap (TGMOT). This approach addresses the limitations of traditional magneto-optical traps using a transmission-grating design that simplifies the optical configuration, allowing for efficient atom capture with a single incident beam.
View Article and Find Full Text PDFMacromol Rapid Commun
January 2025
College of Chemistry and Chemical Engineering, Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Material, Northwest Normal University, Lanzhou, Gansu, 730070, P. R. China.
Recent advancements in inverse vulcanization have led to the development of sulfur-rich polymers with diverse applications. However, progress is constrained by the harsh high-temperature reaction conditions, limited applicability, and the generation of hazardous HS gas. This study presents an induced IV method utilizing selenium octanoic acid, yielding sulfur-selenium rich polymers with full atom economy, even at a low-temperatures of 100-120 °C.
View Article and Find Full Text PDFJ Chem Phys
January 2025
Fritz Haber Research Center for Molecular Dynamics, The Hebrew University of Jerusalem, Jerusalem 9190401, Israel.
Complex organic molecules are widespread in different areas of the interstellar medium, including cold areas, such as molecular clouds, where chemical reactions occur in ice. Among the observed molecules are oxygen-bearing organic molecules, which are of high interest given their significant role in astrobiology. Despite the observed rich chemistry, the underlying molecular mechanisms responsible for molecular formation in such cold dilute areas are still not fully understood.
View Article and Find Full Text PDFNature
January 2025
Max-Planck-Institut für Quantenoptik, Garching, Germany.
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