Zobrazeno 1 - 10 of 60 pro vyhledávání: '"John W Blanchard"'
1
Akademický článek
Zero-field J-spectroscopy of quadrupolar nuclei
Autor: Román Picazo-Frutos, Kirill F. Sheberstov, John W. Blanchard, Erik Van Dyke, Moritz Reh, Tobias Sjoelander, Alexander Pines, Dmitry Budker, Danila A. Barskiy
Publikováno v: Nature Communications, Vol 15, Iss 1, Pp 1-10 (2024)
Abstract Zero- to ultralow-field nuclear magnetic resonance (ZULF NMR) allows molecular structure elucidation via measurement of electron-mediated spin-spin J-couplings. This study examines zero-field J-spectra from molecules with quadrupolar nuclei,
Externí odkaz: https://doaj.org/article/a2eb9fecb9974f20931bc0212845edca
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2
Akademický článek
Stochastic fluctuations of bosonic dark matter
Autor: 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
Publikováno v: Nature Communications, Vol 12, Iss 1, Pp 1-6 (2021)
Direct dark matter searches need to take into account whether the total observation time is lower than the characteristic coherence time of the DM field. Analysing this generally overlooked scenario, here the authors quantify the impact on DM limits
Externí odkaz: https://doaj.org/article/8f0db569cdbf4d5fae573a480b0ceade
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3
Akademický článek
Using parity-nonconserving spin-spin coupling to measure the Tl nuclear anapole moment in a TlF molecular beam
Autor: John W. Blanchard, Dmitry Budker, David DeMille, Mikhail G. Kozlov, Leonid V. Skripnikov
Publikováno v: Physical Review Research, Vol 5, Iss 1, p 013191 (2023)
An experiment utilizing a TlF molecular beam is being developed by the CeNTREX collaboration to search for hadronic interactions that violate both time-reversal (T) and parity (P) invariance. Here, we propose to use the same beam to look for a T-inva
Externí odkaz: https://doaj.org/article/e6b989899c744407b0c226e77aed9e47
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4
Akademický článek
Zero-field nuclear magnetic resonance of chemically exchanging systems
Autor: Danila A. Barskiy, Michael C. D. Tayler, Irene Marco-Rius, John Kurhanewicz, Daniel B. Vigneron, Sevil Cikrikci, Ayca Aydogdu, Moritz Reh, Andrey N. Pravdivtsev, Jan-Bernd Hövener, John W. Blanchard, Teng Wu, Dmitry Budker, Alexander Pines
Publikováno v: Nature Communications, Vol 10, Iss 1, Pp 1-9 (2019)
Zero-field nuclear magnetic resonance can identify species and collective behaviors in mixtures without applied magnetic fields. Here the authors demonstrate its use for resolving proton exchange in ammonium and for the detection of hyperpolarized py
Externí odkaz: https://doaj.org/article/58e06c5dcabe4e329f3f3e6e1d38ac26
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7
Akademický článek
Nondestructive in-line sub-picomolar detection of magnetic nanoparticles in flowing complex fluids
Autor: Lykourgos Bougas, Lukas D. Langenegger, Carlos A. Mora, Martin Zeltner, Wendelin J. Stark, Arne Wickenbrock, John W. Blanchard, Dmitry Budker
Publikováno v: Scientific Reports, Vol 8, Iss 1, Pp 1-8 (2018)
Abstract Over the last decades, the use of magnetic nanoparticles in research and commercial applications has increased dramatically. However, direct detection of trace quantities remains a challenge in terms of equipment cost, operating conditions a
Externí odkaz: https://doaj.org/article/947b483a7a7a4a56882e4a0cfa10f304
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8
Rapid hyperpolarization and purification of the metabolite fumarate in aqueous solution
Autor: John W. Blanchard, Laurynas Dagys, Dmitry Budker, Eleonora Cavallari, Malcolm H. Levitt, Gerd Buntkowsky, Maksim Tsukanov, Danila A. Barskiy, Alexander Pines, Francesca Reineri, Kerstin Münnemann, Stephan Knecht, Silvio Aime, James Eills, Erik van Dyke, Peter Blümler, Bea Bliemel
Publikováno v: Proceedings of the National Academy of Sciences of the United States of America 118(13), e2025383118 (2021). doi:10.1073/pnas.2025383118
Proceedings of the National Academy of Sciences of the United States of America, vol 118, iss 13
Proceedings of the National Academy of Sciences
chemRxiv
Proceedings of the National Academy of Sciences of the United States of America
Significance Magnetic resonance imaging is hindered by inherently low sensitivity, which limits the method for the most part to observing water molecules in the body. Hyperpolarized molecules exhibit strongly enhanced MRI signals which opens the door
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::38ca142476cf51bdb28120de5a884a2c
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9
Akademický článek
Rapid Online Solid-State Battery Diagnostics with Optically Pumped Magnetometers
Autor: Yinan Hu, Geoffrey Z. Iwata, Lykourgos Bougas, John W. Blanchard, Arne Wickenbrock, Gerhard Jakob, Stephan Schwarz, Clemens Schwarzinger, Alexej Jerschow, Dmitry Budker
Publikováno v: Applied Sciences, Vol 10, Iss 21, p 7864 (2020)
Solid-state battery technology is motivated by the desire to deliver flexible power storage in a safe and efficient manner. The increasingly widespread use of batteries from mass production facilities highlights the need for a rapid and sensitive dia
Externí odkaz: https://doaj.org/article/c5dcc8bfbec44109b0386359b64ad3bd
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10
Akademický článek
Molecular parity nonconservation in nuclear spin couplings
Autor: John W. Blanchard, Jonathan P. King, Tobias F. Sjolander, Mikhail G. Kozlov, Dmitry Budker
Publikováno v: Physical Review Research, Vol 2, Iss 2, p 023258 (2020)
The weak interaction does not conserve parity, which is apparent in many nuclear and atomic phenomena. However, thus far, parity nonconservation has not been observed in molecules. Here we consider nuclear-spin-dependent parity-nonconserving contribu
Externí odkaz: https://doaj.org/article/27a6d4c80fe5415ab3fcbaba03d447df
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