Search Results for author: Dmitry Budker

Found 15 papers, 0 papers with code

Do cities have a unique magnetic pulse?

no code implementations12 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 implementations12 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

Rapid parameter estimation of discrete decaying signals using autoencoder networks

no code implementations10 Mar 2021 Jim C. Visschers, Dmitry Budker, Lykourgos Bougas

Furthermore, we demonstrate that autoencoder networks are able to achieve signal analysis, and, hence, parameter extraction, at rates of 75 kHz, orders-of-magnitude faster than conventional techniques with similar precision.

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

no code implementations22 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

Photochemically induced dynamic nuclear polarization of heteronuclear singlet order

no code implementations15 Feb 2021 Kirill F. Sheberstov, Liubov Chuchkova, Yinan Hu, Ivan V. Zhukov, Alexey S. Kiryutin, Artur V. Eshtukov, Dmitry A. Cheshkov, Danila A. Barskiy, John W. Blanchard, Dmitry Budker, Konstantin L. Ivanov, Alexandra V. Yurkovskaya

In most cases, CIDNP experiments are performed at a high magnetic field and the sample is irradiated by the light inside a nuclear magnetic resonance (NMR) spectrometer.

Chemical Physics

Search for axion-like dark matter with spin-based amplifiers

no code implementations2 Feb 2021 Min Jiang, Haowen Su, Antoine Garcon, Xinhua Peng, Dmitry Budker

Here, we demonstrate a new quantum sensor to search for ALPs in the mass range that spans about two decades from 8. 3 feV to 744 feV.

High Energy Physics - Phenomenology Atomic Physics Quantum Physics

Deep Neural Networks to Recover Unknown Physical Parameters from Oscillating Time Series

no code implementations11 Jan 2021 Antoine Garcon, Julian Vexler, Dmitry Budker, Stefan Kramer

We show that, because DNNs can find useful abstract feature representations, they can be used when prior knowledge about the signal-generating process exists, but is not complete, as it is particularly the case in "new-physics" searches.

Denoising regression +2

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

no code implementations4 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

Probing fast oscillating scalar dark matter with atoms and molecules

no code implementations2 Dec 2020 Dionysios Antypas, Oleg Tretiak, Ke Zhang, Antoine Garcon, Gilad Perez, Mikhail G. Kozlov, Stephan Schiller, Dmitry Budker

We discuss the WReSL experiment, report on progress towards improved measurements of rapid fundamental constant variations, and discuss the planned extension of the work to molecules, in which rapid variations of the nuclear mass can be sensitively searched for.

Atomic Physics High Energy Physics - Phenomenology

Resonance photoproduction of pionic atoms at the Gamma Factory

no code implementations14 Oct 2020 Victor V. Flambaum, Junlan Jin, Dmitry Budker

We present a possibility of direct resonance production of pionic atoms (Coulomb bound states of a negative pion and a nucleus) with a rate of up to $\sim10^{10}$ per second using the gamma-ray beams from the Gamma Factory.

Nuclear Experiment Nuclear Theory Atomic Physics

Searching for Earth/Solar Axion Halos

no code implementations9 Dec 2019 Abhishek Banerjee, Dmitry Budker, Joshua Eby, Victor V. Flambaum, Hyungjin Kim, Oleksii Matsedonskyi, Gilad Perez

We discuss the sensitivity of the present and near-future axion dark matter experiments to a halo of axions or axion-like particles gravitationally bound to the Earth or the Sun.

High Energy Physics - Phenomenology Cosmology and Nongalactic Astrophysics Atomic Physics

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

no code implementations25 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 implementations31 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 implementations12 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 implementations30 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

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