Articles with "electromagnetism" as a keyword



Electrochemical Switching of Electromagnetism by Hierarchical Disorder Tailored Atomic Scale Polarization

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Published in 2024 at "Advanced Materials"

DOI: 10.1002/adma.202410466

Abstract: High‐frequency electronic response governs a broad spectrum of electromagnetic applications from radiation protection, and signal compatibility, to energy recovery. Despite various efforts to manage electric conductivity, dynamic control over dielectric polarization for real‐time electromagnetic modulation… read more here.

Keywords: hierarchical disorder; switching electromagnetism; electromagnetism hierarchical; electromagnetism ... See more keywords
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The physics of MRI safety

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Published in 2018 at "Journal of Magnetic Resonance Imaging"

DOI: 10.1002/jmri.25761

Abstract: The main risks associated with magnetic resonance imaging (MRI) have been extensively reported and studied; for example, everyday objects may turn into projectiles, energy deposition can cause burns, varying fields can induce nerve stimulation, and… read more here.

Keywords: physics mri; electromagnetism; mri safety; physics ... See more keywords

Gravito-electromagnetism, Kerr-Schild and Weyl double copies; a unified perspective

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Published in 2025 at "Journal of High Energy Physics"

DOI: 10.1007/jhep05(2025)016

Abstract: Two modern programs involving analogies between general relativity and electro-magnetism, gravito-electromagnetism (GEM) and the classical double copy (CDC), induce electromagnetic potentials from specific classes of spacetime metrics. We demonstrate such electromagnetic potentials are typically gauge… read more here.

Keywords: kerr schild; weyl; double copy; weyl double ... See more keywords

Asymptotic renormalization in flat space: symplectic potential and charges of electromagnetism

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Published in 2019 at "Journal of High Energy Physics"

DOI: 10.1007/jhep10(2019)126

Abstract: Abstract We present a systematic procedure to renormalize the symplectic potential of the electromagnetic field at null infinity in Minkowski space. We work in D ≥ 6 spacetime dimensions as a toy model of General… read more here.

Keywords: symplectic potential; electromagnetism; renormalization flat; space ... See more keywords

Plasma photonic crystal ‘kaleidoscope’ with flexible control of topology and electromagnetism

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Published in 2024 at "Frontiers of Optoelectronics"

DOI: 10.1007/s12200-024-00137-z

Abstract: Continuous development of photonic crystals (PCs) over the last 30 years has carved out many new scientific frontiers. However, creating tunable PCs that enable flexible control of geometric configurations remains a challenge. Here we present… read more here.

Keywords: crystal; kaleidoscope; flexible control; topology ... See more keywords
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Existence of solutions for systems arising in electromagnetism

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Published in 2020 at "Journal of Mathematical Analysis and Applications"

DOI: 10.1016/j.jmaa.2020.123898

Abstract: Abstract In this paper, we study the following p ( x ) -curl systems: { ∇ × ( | ∇ × u | p ( x ) − 2 ∇ × u ) + a… read more here.

Keywords: electromagnetism; existence; solutions systems; arising electromagnetism ... See more keywords

In-depth experimental search for a coupling between gravity and electromagnetism with steady fields

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Published in 2024 at "Scientific Reports"

DOI: 10.1038/s41598-024-70286-w

Abstract: Any means to control gravity like electromagnetism is currently out of reach by many orders of magnitude even under extreme laboratory conditions. Some often poorly executed experiments or pseudoscience theories appear from time to time… read more here.

Keywords: search coupling; gravity; steady fields; depth experimental ... See more keywords

An improved Darwin approximation in the classical electromagnetism

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Published in 2023 at "Physics of Plasmas"

DOI: 10.1063/5.0138048

Abstract: Darwin approximation, a non-relativistic submodel of the Maxwell's equations, has been used for theoretical and computational investigations of magnetized plasmas. In this short paper, an improved Darwin approximation is proposed, which is applicable not only… read more here.

Keywords: approximation classical; approximation; improved darwin; electromagnetism ... See more keywords

Pressure demagnetization: Electromagnetism meets thermodynamics

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Published in 2024 at "AIP Advances"

DOI: 10.1063/5.0188747

Abstract: By pressure demagnetization, take iron as an example, we mean either that, given an external magnetic field under a certain temperature, the magnetization becomes weaker as the pressure increases, which can be referred to as… read more here.

Keywords: pressure; thermodynamics; pressure demagnetization; magnetization ... See more keywords

Defining geometric gauge theory to accommodate particles, continua, and fields

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Published in 2024 at "Journal of Mathematical Physics"

DOI: 10.1063/5.0230212

Abstract: Gauge theory underpins the quantum field theories of the standard model, and in a previous paper was shown via a geometric approach to describe classical electromagnetism in a form which approximates quantum electrodynamics. Here we… read more here.

Keywords: electromagnetism; field; geometric gauge; gauge theory ... See more keywords

Boundary value problems of nonlinear Maxwell equations arising in mesoscopic electromagnetism

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Published in 2024 at "Applicable Analysis"

DOI: 10.1080/00036811.2024.2426081

Abstract: We consider boundary value problems of (general) nonlinear Maxwell equations arising in mesoscopic electromagnetism. The Morse indices of the solution continua are obtained and the structure of positive solutions of the problems are characterized. read more here.

Keywords: equations arising; nonlinear maxwell; boundary value; electromagnetism ... See more keywords