Results 51 to 60 of about 1,054,395 (366)

Phantom Black Holes and Sigma Models

open access: yes, 2011
We construct static multicenter solutions of phantom Einstein-Maxwell-dilaton theory from null geodesics of the target space, leading to regular black holes without spatial symmetry for certain discrete values of the dilaton coupling constant.
A. Papapetrou   +9 more
core   +3 more sources

On the constrained structure of duality symmetric Maxwell theory [PDF]

open access: yes, 1998
The constrained structure of the duality invariant form of Maxwell theory is considered in the Hamiltonian formulation of Dirac as well as from the symplectic viewpoint.
Arnold V I   +5 more
core   +2 more sources

Generalized continuous Maxwell demons

open access: yesPhysical Review E, 2023
8 pages, 5 ...
Juan P. Garrahan, Felix Ritort
openaire   +3 more sources

La unificación de luz, electricidad y magnetismo: la "síntesis electromagnética" de Maxwell

open access: yesRevista Brasileira de Ensino de Física
A comienzos del siglo XIX la luz, la electricidad y el magnetismo eran considerados tres fenómenos independientes. Mientras que el interés por la óptica estaba justificado por su aplicación a la construcción de instrumentos ópticos, los fenómenos ...
Augusto Beléndez
doaj   +1 more source

Perturbative variational formulation of the Vlasov-Maxwell equations

open access: yes, 2018
The perturbative variational formulation of the Vlasov-Maxwell equations is presented up to third order in the perturbation analysis. From the second and third-order Lagrangian densities, respectively, the first-order and second-order Vlasov-Maxwell ...
Brizard, Alain J.
core   +1 more source

Maxwell Gravitation

open access: yesPhilosophy of Science, 2018
This article gives an explicit presentation of Newtonian gravitation on the backdrop of Maxwell space-time, giving a sense in which acceleration is relative in gravitational theory. However, caution is needed: assessing whether this is a robust or interesting sense of the relativity of acceleration depends on some subtle technical issues and on ...
openaire   +2 more sources

Extracting Work from Quantum Measurement in Maxwell's Demon Engines. [PDF]

open access: yesPhysical Review Letters, 2017
The essence of both classical and quantum engines is to extract useful energy (work) from stochastic energy sources, e.g., thermal baths. In Maxwell's demon engines, work extraction is assisted by a feedback control based on measurements performed by a ...
C. Elouard   +3 more
semanticscholar   +1 more source

Lifting of the Vlasov-Maxwell Bracket by Lie-transform Method

open access: yes, 2016
The Vlasov-Maxwell equations possess a Hamiltonian structure expressed in terms of a Hamiltonian functional and a functional bracket. In the present paper, the transformation ("lift") of the Vlasov-Maxwell bracket induced by the dynamical reduction of ...
Brizard, A. J.   +4 more
core   +3 more sources

The Maxwell Lagrangian in purely affine gravity [PDF]

open access: yes, 2008
The purely affine Lagrangian for linear electrodynamics, that has the form of the Maxwell Lagrangian in which the metric tensor is replaced by the symmetrized Ricci tensor and the electromagnetic field tensor by the tensor of homothetic curvature, is ...
Eddington A. S.   +10 more
core   +1 more source

Anti-self-dual Maxwell solutions on hyperk\"ahler manifold and N=2 supersymmetric Ashtekar gravity

open access: yes, 1998
Anti-self-dual (ASD) Maxwell solutions on 4-dimensional hyperk\"ahler manifolds are constructed. The N=2 supersymmetric half-flat equations are derived in the context of the Ashtekar formulation of N=2 supergravity.
Ashtekar A   +20 more
core   +1 more source

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