dorsal/arxiv
View SchemaQuantum Electrodynamics at Large Distances I: Extracting the Correspondence-Principle Part.
| Authors | Takahiro Kawai, Henry P. Stapp |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9503002 |
| URL | https://arxiv.org/abs/quant-ph/9503002 |
| DOI | 10.1103/PhysRevD.52.2484 |
| Journal | Phys.Rev. D52 (1995) 2484-2504 |
Abstract
The correspondence principle is important in quantum theory on both the fundamental and practical levels: it is needed to connect theory to experiment, and for calculations in the technologically important domain lying between the atomic and classical regimes. Moreover, a correspondence-principle part of the S-matrix is normally separated out in quantum electrodynamics in order to obtain a remainder that can be treated perturbatively. But this separation, as usually performed, causes an apparent breakdown of the correspondence principle and the associated pole-factorization property. This breakdown is spurious. It is shown in this article, and a companion, in the context of a special case, how to extract a distinguished part of the S-matrix that meets the correspondence-principle and pole-factorization requirements. In a second companion paper the terms of the remainder are shown to vanish in the appropriate macroscopic limits. Thus this work validates the correspondence principle and pole factorization in quantum electrodynamics, in the special case treated here, and creates a needed computational technique.
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"abstract": "The correspondence principle is important in quantum theory on both the\nfundamental and practical levels: it is needed to connect theory to experiment,\nand for calculations in the technologically important domain lying between the\natomic and classical regimes. Moreover, a correspondence-principle part of the\nS-matrix is normally separated out in quantum electrodynamics in order to\nobtain a remainder that can be treated perturbatively. But this separation, as\nusually performed, causes an apparent breakdown of the correspondence principle\nand the associated pole-factorization property. This breakdown is spurious. It\nis shown in this article, and a companion, in the context of a special case,\nhow to extract a distinguished part of the S-matrix that meets the\ncorrespondence-principle and pole-factorization requirements. In a second\ncompanion paper the terms of the remainder are shown to vanish in the\nappropriate macroscopic limits. Thus this work validates the correspondence\nprinciple and pole factorization in quantum electrodynamics, in the special\ncase treated here, and creates a needed computational technique.",
"arxiv_id": "quant-ph/9503002",
"authors": [
"Takahiro Kawai",
"Henry P. Stapp"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevD.52.2484",
"journal_ref": "Phys.Rev. D52 (1995) 2484-2504",
"title": "Quantum Electrodynamics at Large Distances I: Extracting the Correspondence-Principle Part.",
"url": "https://arxiv.org/abs/quant-ph/9503002"
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