Linear to circular polarization conversion in the sharp focus of an optical vortex [PDF]
We have shown that when sharply focusing a linearly polarized optical vortex with topological charge 2, in the near-axis region of the focal plane, not only does a reverse energy flow (the negative on-axis projection of the Poynting vector) occur, but ...
A.G. Nalimov, S.S. Stafeev
doaj +1 more source
Lifshitz hydrodynamics at generic z from a moving black brane
A Lifshitz black brane at generic dynamical critical exponent z > 1, with non-zero linear momentum along the boundary, provides a holographic dual description of a non-equilibrium steady state in a quantum critical fluid, with Lifshitz scale invariance ...
Aruna Rajagopal, Larus Thorlacius
doaj +1 more source
On the Energy-Momentum Density of Gravitational Plane Waves [PDF]
By embedding Einstein's original formulation of GR into a broader context we show that a dynamic covariant description of gravitational stress-energy emerges naturally from a variational principle.
Bel L +13 more
core +2 more sources
Prediction of the electromagnetic torque in synchronous machines through Maxwell stress harmonic filter (HFT) method [PDF]
For the calculation of torque in synchronous motors a local method is analysed, based on the Maxwell stress theory and the filtered contributions due to the harmonics of the magnetic vector potential in the motor air-gap.
Popescu, M.
core +1 more source
Divergent part of the stress-energy tensor for Maxwell’s theory in curved space-time: a systematic derivation [PDF]
AbstractIn this paper the Feynman Green function for Maxwell’s theory in curved space-time is studied by using the Fock–Schwinger–DeWitt asymptotic expansion; the point-splitting method is then applied, since it is a valuable tool for regularizing divergent observables.
Roberto Niardi +2 more
openaire +3 more sources
Four-dimensional topological Einstein-Maxwell gravity [PDF]
The complete on-shell action of topological Einstein-Maxwell gravity in four-dimensions is presented. It is shown explicitly how this theory for SU(2) holonomy manifolds arises from four-dimensional Euclidean N=2 supergravity.
Abe M +14 more
core +2 more sources
Lifshitz theory of van der Waals pressure in dissipative media [PDF]
We derive a first--principles method of determining the van der Waals or Casimir pressure in a dissipative and dispersive planar multilayered system by calculating the Maxwell stress tensor in a fictitious layer of vacuum, that is eventually made to ...
Narayanaswamy, Arvind, Zheng, Yi
core +3 more sources
The signature of the magnetorotational instability in the Reynolds and Maxwell stress tensors in accretion discs [PDF]
9 pages, 4 figures. Minor revisions.
Pessah, Martin Elias +2 more
openaire +3 more sources
Analysis Method Development of Hybrid Linear Motor Considering Cogging Force Effect
This study examines the distributions of the cogging and current forces in a hybrid linear motor and their impact on its performance. Subsequently, using the Maxwell stress tensor to analyze the force acting on the motor, a method has been proposed for ...
Zhixiong Jiang +3 more
doaj +1 more source
Post-Newtonian Approximation in Maxwell-Like Form [PDF]
The equations of the linearized first post-Newtonian approximation to general relativity are often written in "gravitoelectromagnetic" Maxwell-like form, since that facilitates physical intuition.
A. Einstein +14 more
core +2 more sources

