dorsal/arxiv
View SchemaRadiating and Non-Radiating Current Distributions in Quantum Electrodynamics
| Authors | G. Castellani, S. Sivasubramanian, A. Widom, Y. N. Srivastava |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0306185 |
| URL | https://arxiv.org/abs/quant-ph/0306185 |
Abstract
The notion of ``radiating'' and ``non-radiating'' current sources in classical electrodynamics plays an important role in calculations of direct and inverse electromagnetic scattering problems. Such a decomposition of the current is central for the notion of localized non-radiating electromagnetic modes. A completely quantum electrodynamic view is explored in this work. Photon emission and absorption current sources are classified as being either radiating or non-radiating. This quantum classification corresponds, respectively and exactly, to the notion of ``real'' and ``virtual'' photon processes. Causal properties of both real and virtual electromagnetic fields are discussed.
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"abstract": "The notion of ``radiating\u0027\u0027 and ``non-radiating\u0027\u0027 current sources in\nclassical electrodynamics plays an important role in calculations of direct and\ninverse electromagnetic scattering problems. Such a decomposition of the\ncurrent is central for the notion of localized non-radiating electromagnetic\nmodes. A completely quantum electrodynamic view is explored in this work.\nPhoton emission and absorption current sources are classified as being either\nradiating or non-radiating. This quantum classification corresponds,\nrespectively and exactly, to the notion of ``real\u0027\u0027 and ``virtual\u0027\u0027 photon\nprocesses. Causal properties of both real and virtual electromagnetic fields\nare discussed.",
"arxiv_id": "quant-ph/0306185",
"authors": [
"G. Castellani",
"S. Sivasubramanian",
"A. Widom",
"Y. N. Srivastava"
],
"categories": [
"quant-ph"
],
"title": "Radiating and Non-Radiating Current Distributions in Quantum Electrodynamics",
"url": "https://arxiv.org/abs/quant-ph/0306185"
},
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