The physics of MRI safety
Sign Up to like & getrecommendations! 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
Asymptotic renormalization in flat space: symplectic potential and charges of electromagnetism
Sign Up to like & getrecommendations! 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
Existence of solutions for systems arising in electromagnetism
Sign Up to like & getrecommendations! 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
An improved Darwin approximation in the classical electromagnetism
Sign Up to like & getrecommendations! 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
Classical field theory
Sign Up to like & getrecommendations! Published in 2019 at "Contemporary Physics"
DOI: 10.1080/00107514.2019.1660720
Abstract: Classical Field Theory is a graduate level introduction to modern classical field theory, including electromagnetism and general relativity and describes various classical methods for fields with negligible quantum effects. The book is an expanded version… read more here.
Keywords: electromagnetism; theory; field; field theory ... See more keywords
More On Cosmological Gravitational Waves And Their Memories
Sign Up to like & getrecommendations! Published in 2017 at "Classical and Quantum Gravity"
DOI: 10.1088/1361-6382/aa8392
Abstract: We extend recent theoretical results on the propagation of linear gravitational waves (GWs), including their associated memories, in spatially flat Friedmann–Lemaitre–Robertson–Walker universes, for all spacetime dimensions higher than 3. By specializing to a cosmology driven… read more here.
Keywords: electromagnetism; gravitational waves; cosmology; waves memories ... See more keywords
Evidence for Maxwell’s equations, fields, force laws and alternative theories of classical electrodynamics
Sign Up to like & getrecommendations! Published in 2018 at "European Journal of Physics"
DOI: 10.1088/1361-6404/aadf9b
Abstract: The set of equations known today as Maxwell's equations along with a few constitutive equations lie at the heart of classical electromagnetism. A common misconception held by many is that Maxwell's equations are essential, and… read more here.
Keywords: electromagnetism; electrodynamics; evidence; maxwell equations ... See more keywords
Reply to Comments on ‘Feynman’s handwritten notes on electromagnetism and the idea of introducing potentials before fields’
Sign Up to like & getrecommendations! Published in 2020 at "European Journal of Physics"
DOI: 10.1088/1361-6404/aba9f1
Abstract: We reply to some comments made by Davis (2020 Eur. J. Phys. 40 018001) on our paper (2020 Eur. J. Phys. 41 035202), by arguing that Davis’s assertions are unsupported in some cases and are… read more here.
Keywords: electromagnetism; reply comments; feynman handwritten; comments feynman ... See more keywords
Electrostatic potential and electric field in the z axis of a non centered circular charged ring
Sign Up to like & getrecommendations! Published in 2021 at "European Journal of Physics"
DOI: 10.1088/1361-6404/ac221c
Abstract: In introductory level electromagnetism courses the calculation of electrostatic potential and electric field in an arbitrary point is a very common exercise. One of the most viewed cases is the calculation of electrostatic potential and… read more here.
Keywords: electromagnetism; potential electric; electrostatic potential; charged ring ... See more keywords
On the Biot–Savart law of electromagnetism applied to the atomic circulation current *
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Physics A: Mathematical and Theoretical"
DOI: 10.1088/1751-8121/abe832
Abstract: The law of Biot and Savart, derived by observation of the magnetic field produced by electric current flowing in a macroscopic conductor, is shown to yield the correct expression for the nuclear hyperfine interaction, when… read more here.
Keywords: biot savart; electromagnetism; circulation current; law ... See more keywords
Optical Kerr effect in vacuum
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review A"
DOI: 10.1103/physreva.100.063831
Abstract: From an effective field theory of electromagnetism in vacuum including all lowest-order nonlinear terms consistent with Lorentz invariance and locality of photon-photon interactions, we derive an effective-medium description of strong background fields as regards their… read more here.
Keywords: vacuum; optical kerr; kerr effect; probe ... See more keywords