dorsal/arxiv
View SchemaQuantum theory of light and noise polarization in nonlinear optics
| Authors | Stefan Scheel, Dirk-Gunnar Welsch |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0508122 |
| URL | https://arxiv.org/abs/quant-ph/0508122 |
| DOI | 10.1103/PhysRevLett.96.073601 |
Abstract
We present a consistent quantum theory of the electromagnetic field in nonlinearly responding causal media, with special emphasis on $\chi^{(2)}$ media. Starting from QED in linearly responding causal media, we develop a method to construct the nonlinear Hamiltonian expressed in terms of the complex nonlinear susceptibility in a quantum mechanically consistent way. In particular we show that the method yields the nonlinear noise polarization, which together with the linear one is responsible for intrinsic quantum decoherence.
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"abstract": "We present a consistent quantum theory of the electromagnetic field in\nnonlinearly responding causal media, with special emphasis on $\\chi^{(2)}$\nmedia. Starting from QED in linearly responding causal media, we develop a\nmethod to construct the nonlinear Hamiltonian expressed in terms of the complex\nnonlinear susceptibility in a quantum mechanically consistent way. In\nparticular we show that the method yields the nonlinear noise polarization,\nwhich together with the linear one is responsible for intrinsic quantum\ndecoherence.",
"arxiv_id": "quant-ph/0508122",
"authors": [
"Stefan Scheel",
"Dirk-Gunnar Welsch"
],
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"quant-ph"
],
"doi": "10.1103/PhysRevLett.96.073601",
"title": "Quantum theory of light and noise polarization in nonlinear optics",
"url": "https://arxiv.org/abs/quant-ph/0508122"
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