dorsal/arxiv
View SchemaPhoton Position Operator and Localization of Photons inside a Waveguide
| Authors | Zhi-Yong Wang, Cai-Dong Xiong, Ole Keller |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0511270 |
| URL | https://arxiv.org/abs/quant-ph/0511270 |
Abstract
In this article, we show that in the level of quantum mechanics, a photon position operator with commuting components can be obtained in a more natural way; in the level of quantum field theory, the photon position operator corresponds to the center of the photon number. It is most interesting for us to show that, a photon inside a waveguide can be localized in the same sense that a massive particle can be localized in free space, and just as that it is impossible to localize a massive particle with a greater precision than its Compton wavelength, one can also arrival at a similar conclusion: it is impossible to localize a photon inside a waveguide with a greater precision than its equivalent Compton wavelength, which owing to evanescent-wave or photon-tunneling phenomena.
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"abstract": "In this article, we show that in the level of quantum mechanics, a photon\nposition operator with commuting components can be obtained in a more natural\nway; in the level of quantum field theory, the photon position operator\ncorresponds to the center of the photon number. It is most interesting for us\nto show that, a photon inside a waveguide can be localized in the same sense\nthat a massive particle can be localized in free space, and just as that it is\nimpossible to localize a massive particle with a greater precision than its\nCompton wavelength, one can also arrival at a similar conclusion: it is\nimpossible to localize a photon inside a waveguide with a greater precision\nthan its equivalent Compton wavelength, which owing to evanescent-wave or\nphoton-tunneling phenomena.",
"arxiv_id": "quant-ph/0511270",
"authors": [
"Zhi-Yong Wang",
"Cai-Dong Xiong",
"Ole Keller"
],
"categories": [
"quant-ph"
],
"title": "Photon Position Operator and Localization of Photons inside a Waveguide",
"url": "https://arxiv.org/abs/quant-ph/0511270"
},
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