dorsal/arxiv
View SchemaHydrodynamic construction of the electromagnetic field
| Authors | Peter Holland |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0411141 |
| URL | https://arxiv.org/abs/quant-ph/0411141 |
| DOI | 10.1098/rspa.2005.1525 |
| Journal | Proc. R. Soc. A 461, 3659-3679 (2005) |
| License | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
Abstract
We present an alternative Eulerian hydrodynamic model for the electromagnetic field in which the discrete vector indices in Maxwell\s equations are replaced by continuous angular freedoms, and develop the corresponding Lagrangian picture in which the fluid particles have rotational and translational freedoms. This enables us to extend to the electromagnetic field the exact method of state construction proposed previously for spin 0 systems, in which the time-dependent wavefunction is computed from a single-valued continuum of deterministic trajectories where two spacetime points are linked by at most a single orbit. The deduction of Maxwell\s equations from continuum mechanics is achieved by generalizing the spin 0 theory to a general Riemannian manifold from which the electromagnetic construction is extracted as a special case. In particular, the flat-space Maxwell equations are represented as a curved-space Schr\"odinger equation for a massive system. The Lorentz covariance of the Eulerian field theory is obtained from the non-covariant Lagrangian-coordinate model as a kind of collective effect. The method makes manifest the electromagnetic analogue of the quantum potential that is tacit in Maxwell\s equations. This implies a novel definition of the \classical limit\ of Maxwell\s equations that differs from geometrical optics. It is shown that Maxwell\s equations may be obtained by canonical quantization of the classical model. Using the classical trajectories a novel expression is derived for the propagator of the electromagnetic field in the Eulerian picture. The trajectory and propagator methods of solution are illustrated for the case of a light wave.
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"abstract": "We present an alternative Eulerian hydrodynamic model for the electromagnetic\nfield in which the discrete vector indices in Maxwell\\s equations are replaced\nby continuous angular freedoms, and develop the corresponding Lagrangian\npicture in which the fluid particles have rotational and translational\nfreedoms. This enables us to extend to the electromagnetic field the exact\nmethod of state construction proposed previously for spin 0 systems, in which\nthe time-dependent wavefunction is computed from a single-valued continuum of\ndeterministic trajectories where two spacetime points are linked by at most a\nsingle orbit. The deduction of Maxwell\\s equations from continuum mechanics is\nachieved by generalizing the spin 0 theory to a general Riemannian manifold\nfrom which the electromagnetic construction is extracted as a special case. In\nparticular, the flat-space Maxwell equations are represented as a curved-space\nSchr\\\"odinger equation for a massive system. The Lorentz covariance of the\nEulerian field theory is obtained from the non-covariant Lagrangian-coordinate\nmodel as a kind of collective effect. The method makes manifest the\nelectromagnetic analogue of the quantum potential that is tacit in Maxwell\\s\nequations. This implies a novel definition of the \\classical limit\\ of\nMaxwell\\s equations that differs from geometrical optics. It is shown that\nMaxwell\\s equations may be obtained by canonical quantization of the classical\nmodel. Using the classical trajectories a novel expression is derived for the\npropagator of the electromagnetic field in the Eulerian picture. The trajectory\nand propagator methods of solution are illustrated for the case of a light\nwave.",
"arxiv_id": "quant-ph/0411141",
"authors": [
"Peter Holland"
],
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"doi": "10.1098/rspa.2005.1525",
"journal_ref": "Proc. R. Soc. A 461, 3659-3679 (2005)",
"license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
"title": "Hydrodynamic construction of the electromagnetic field",
"url": "https://arxiv.org/abs/quant-ph/0411141"
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