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Physics

Atomic / Molecular / Quantum

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Displaying 301 - 325 of 1114

Spectroscopic analysis of M- and N-intrashell transitions in Co-like to Na-like Yb ions

December 19, 2021
Author(s)
Yuri Ralchenko, Dipti Goyal, Roshani Silwal, Endre Takacs, Joan Dreiling, Samuel Sanders, Amy Gall, Hemalatha Rudramadevi, John Gillaspy
The M-intrashell spectra from Co-like Yb$^43+}$ through Na-like Yb$^59+}$ ions produced in an electron beam ion trap (EBIT) at the National Institute of Standards and Technology have been studied in the extreme ultraviolet (EUV) range. A few N-intrashell

Path-integral calculation of the third dielectric virial coefficient of noble gases

December 15, 2021
Author(s)
Giovanni Garberoglio, Allan H. Harvey, Bogumil Jeziorski
We present a rigorous framework for fully quantum calculation of the third dielectric virial coefficient C_eps(T) of noble gases, including exchange effects. The quantum efects are taken into account with the path-integral Monte Carlo method. Calculations

Cavity Entanglement and State Swapping to Accelerate the Search for Axion Dark Matter

December 10, 2021
Author(s)
K. Wurtz, B.M. Brubaker, Y. Jiang, Elizabeth Ruddy, Dan Palken, Konrad Lehnert
In cavity-based axion dark matter detectors, quantum noise remains a primary barrier to achieving the scan rate necessary for a comprehensive search of the axion parameter space. Here we introduce a method of scan rate enhancement in which an axion

Measurement of electric-field noise from interchangeable samples with a trapped-ion sensor

November 18, 2021
Author(s)
Kyle McKay, Dustin Hite, Philip D. Kent, Shlomi S. Kotler, Dietrich Leibfried, Daniel Slichter, Andrew C. Wilson, David P. Pappas
We demonstrate the use of a single trapped ion as a sensor to probe electric-field noise from interchangeable test surfaces. As proof of principle, we measure the magnitude and distance dependence of electric-field noise from two ion-trap-like samples with

A simple imaging solution for chip-scale laser cooling

November 1, 2021
Author(s)
John Kitching, Gabriela Martinez, A, Gregazzi, Paul Griffin, Aidan Arnold, D. P. Burt, Rodolphe Bouldot, Erling Riis, James McGilligan
We demonstrate a simple stacked scheme that enables absorption imaging through a hole in the surface of a grating magneto-optical trap (GMOT) chip, placed immediately below a micro-fabricated vacuum cell. The imaging scheme is capable of overcoming the