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Physics

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Displaying 576 - 600 of 2516

The PROSPECT Experiment

December 14, 2021
Author(s)
Hans Pieter Mumm
The Precision Reactor Oscillation and Spectrum Experiment, PROSPECT, is designed to both perform a reactor-model independent search for eV-scale sterile neutrino oscillations at meter-long baselines and to make a precise measurement of the antineutrino

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

Model for the Bipolar Amplification Effect

December 10, 2021
Author(s)
James Ashton, Stephen Moxim, Ashton Purcell, Patrick Lenahan, Jason Ryan
We present a model based on Fitzgerald-Grove surface recombination for the bipolar amplification effect (BAE) measurement, which is widely utilized in electrically detected magnetic resonance (EDMR) to measure reliability and performance-limiting interface

Computational scanning tunneling microscope image database

December 5, 2021
Author(s)
Kamal Choudhary, Kevin Garrity, Charles Camp, Sergei Kalinin, Rama Vasudevan, Maxim Ziatdinov, Francesca Tavazza
We introduce the systematic database of scanning tunneling microscope (STM) images obtained using density functional theory (DFT) for two-dimensional (2D) materials, calculated using the Tersoff-Hamann method. It currently contains data for 716 exfoliable

Point-source atom interferometer gyroscope

December 1, 2021
Author(s)
Azure Hansen, Yun-Jhih Chen, John Kitching, Elizabeth Donley
Point-source atom interferometry (PSI) with cold atoms in a centimeter-scale vacuum cell has applications in inertial navigation. PSI uses light pulses in a Raman configuration to interfere atomic wavepackets in an expanding cloud of laser-cooled atoms

Enhancement of electromagnetically induced transparency based Rydberg-atom electrometry through population repumping

November 22, 2021
Author(s)
chris holloway, Nik Prajapati, MATTHEW SIMONS, Samuel Berweger, Aly Artusio-Glimpse, Amy Robinson
We demonstrate the improvement of Rydberg electrometry based on electromagnetically induced transparency (EIT) through the use of a ground state repumping laser. Though there are many factors that limit the sensitivity of radio frequency field measurements

Pauli blocking of atom-light scattering

November 18, 2021
Author(s)
Christian Sanner, Lindsay Sonderhouse, Ross Hutson, Lingfeng Yan, William Milner, Jun Ye
Transition rates between coupled states in a quantum system depend on the density of available final states. The radiative decay of an excited atomic state has been suppressed by reducing the density of electromagnetic vacuum modes near the atomic

Bilateral comparison of the activity concentration for a standardized 137Cs solution between the National Institute of Standards Technology (NIST) and the National Institute of Nuclear Research (ININ)

November 10, 2021
Author(s)
Leticia Pibida, Willie Regits, Olga Garcia Diaz, Lucia Martinez Ayala, Hector Mendoza Nava
This paper summarized the results of the activity concentration of a 137Cs solution performed as a bilateral comparison between the National Institute of Standards and Technology (NIST) in the United States of America and the National Institute of Nuclear

Time-series Imputation Algorithm

November 5, 2021
Author(s)
David A. Howe, Chloe Champagne
Statistical imputation is a field of study that attempts to fill missing data. It is commonly applied to population statistics whose data have no correlation with running time. For a time series, data is typically analyzed using the autocorrelation, the

Semiclassical Theory of Photon Echoes with Application to Pr:YSO

November 4, 2021
Author(s)
Zachary H. Levine
Coherent states are used to prepare a crystal using the Atomic Frequency Comb protocol for quantum memory. Here, semiclassical theory is developed and compared to experimental photon echoes of a coherent pulse.

Spatially Resolved Potential and Li-Ion Distributions Reveal Performance-Limiting Regions in Solid-State Batteries

October 19, 2021
Author(s)
Elliot Fuller, Evgheni Strelcov, Jamie Weaver, Michael Swift, Joshua Sugar, Andrei Kolmakov, Nikolai Zhitenev, Jabez J. McClelland, Yue Qi, Joseph Dura, Alec Talin
The performance of solid-state electrochemical systems is intimately tied to the potential and lithium distributions across electrolyte–electrode junctions that give rise to interface impedance. Here, we combine two operando methods, Kelvin probe force
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