Do cities have a unique magnetic pulse?

no code implementations • 12 Feb 2022 • Vincent Dumont, Trevor A. Bowen, Roger Roglans, Gregory Dobler, Mohit S. Sharma, Andy Karpf, Stuart D. Bale, Arne Wickenbrock, Elena Zhivun, Tom Kornack, Jonathan S. Wurtele, Dmitry Budker

We present a comparative analysis of urban magnetic fields between two American cities: Berkeley (California) and Brooklyn Borough of New York City (New York).

Stand-off magnetometry with directional emission from sodium vapors

no code implementations • 12 Mar 2021 • Rui Zhang, Emmanuel Klinger, Felipe Pedreros Bustos, Alexander Akulshin, Hong Guo, Arne Wickenbrock, Dmitry Budker

Stand-off magnetometry allows measuring magnetic field at a distance, and can be employed in geophysical research, hazardous environment monitoring, and security applications.

Atomic Physics

Battery characterization via eddy-current imaging with nitrogen-vacancy centers in diamond

no code implementations • 22 Feb 2021 • Xue Zhang, Georgios Chatzidrosos, Yinan Hu, Huijie Zheng, Arne Wickenbrock, Alexej Jerschow, Dmitry Budker

Sensitive and accurate diagnostic technologies with magnetic sensors are of great importance for identifying and localizing defects of rechargeable solid batteries in a noninvasive detection.

Applied Physics

Search for axion-like dark matter using solid-state nuclear magnetic resonance

no code implementations • 4 Jan 2021 • Deniz Aybas, Janos Adam, Emmy Blumenthal, Alexander V. Gramolin, Dorian Johnson, Annalies Kleyheeg, Samer Afach, John W. Blanchard, Gary P. Centers, Antoine Garcon, Martin Engler, Nataniel L. Figueroa, Marina Gil Sendra, Arne Wickenbrock, Matthew Lawson, Tao Wang, Teng Wu, Haosu Luo, Hamdi Mani, Philip Mauskopf, Peter W. Graham, Surjeet Rajendran, Derek F. Jackson Kimball, Dmitry Budker, Alexander O. Sushkov

We calibrated the detector and characterized the excitation spectrum and relaxation parameters of the nuclear spin ensemble with pulsed magnetic resonance measurements in a 4. 4 T magnetic field.

High Energy Physics - Experiment Other Condensed Matter Instrumentation and Detectors

Biomagnetic signals recorded during transcranial magnetic stimulation (TMS)-evoked peripheral muscular activity

no code implementations • 25 Sep 2019 • Geoffrey Z. Iwata, Yinan Hu, Tilmann Sander, Muthuraman Muthuraman, Venkata Chaitanya Chirumamilla, Sergiu Groppa, Dmitry Budker, Arne Wickenbrock

Objective: We present magnetomyograms (MMG) of TMS-evoked movement in a human hand, together with a simultaneous surface electromyograph (EMG) and electroencephalograph (EEG) data.

EEG

Stochastic fluctuations of bosonic dark matter

no code implementations • 31 May 2019 • Gary P. Centers, John W. Blanchard, Jan Conrad, Nataniel L. Figueroa, Antoine Garcon, Alexander V. Gramolin, Derek F. Jackson Kimball, Matthew Lawson, Bart Pelssers, Joseph A. Smiga, Alexander O. Sushkov, Arne Wickenbrock, Dmitry Budker, Andrei Derevianko

Numerous theories extending beyond the standard model of particle physics predict the existence of bosons that could constitute the dark matter (DM) permeating the universe.

Cosmology and Nongalactic Astrophysics High Energy Physics - Phenomenology Atomic Physics

Constraints on bosonic dark matter from ultralow-field nuclear magnetic resonance

no code implementations • 12 Feb 2019 • Antoine Garcon, John W. Blanchard, Gary P. Centers, Nataniel L. Figueroa, Peter W. Graham, Derek F. Jackson Kimball, Surjeet Rajendran, Alexander O. Sushkov, Yevgeny V. Stadnik, Arne Wickenbrock, Teng Wu, Dmitry Budker

The nature of dark matter, the invisible substance making up over $80\%$ of the matter in the Universe, is one of the most fundamental mysteries of modern physics.

High Energy Physics - Experiment Atomic Physics Chemical Physics

Search for axionlike dark matter with a liquid-state nuclear spin comagnetometer

no code implementations • 30 Jan 2019 • Teng Wu, John W. Blanchard, Gary P. Centers, Nataniel L. Figueroa, Antoine Garcon, Peter W. Graham, Derek F. Jackson Kimball, Surjeet Rajendran, Yevgeny V. Stadnik, Alexander O. Sushkov, Arne Wickenbrock, Dmitry Budker

We report the results of a search for axionlike dark matter using nuclear magnetic resonance (NMR) techniques.

High Energy Physics - Experiment High Energy Physics - Phenomenology