dorsal/arxiv
View SchemaThe Faraday Quantum Clock and Non-local Photon Pair Correlations
| Authors | Y. Japha, G. Kurizki |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9904044 |
| URL | https://arxiv.org/abs/quant-ph/9904044 |
| DOI | 10.1103/PhysRevA.60.1811 |
Abstract
We study the use of the Faraday effect as a quantum clock for measuring traversal times of evanescent photons through magneto-refractive structures. The Faraday effect acts both as a phase-shifter and as a filter for circular polarizations. Only measurements based on the Faraday phase-shift properties are relevant to the traversal time measurements. The Faraday polarization filtering may cause the loss of non-local (Einstein-Podolsky-Rosen) two-photon correlations, but this loss can be avoided without sacrificing the clock accuracy. We show that a mechanism of destructive interference between consecutive paths is responsible for superluminal traversal times measured by the clock.
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"abstract": "We study the use of the Faraday effect as a quantum clock for measuring\ntraversal times of evanescent photons through magneto-refractive structures.\nThe Faraday effect acts both as a phase-shifter and as a filter for circular\npolarizations. Only measurements based on the Faraday phase-shift properties\nare relevant to the traversal time measurements. The Faraday polarization\nfiltering may cause the loss of non-local (Einstein-Podolsky-Rosen) two-photon\ncorrelations, but this loss can be avoided without sacrificing the clock\naccuracy. We show that a mechanism of destructive interference between\nconsecutive paths is responsible for superluminal traversal times measured by\nthe clock.",
"arxiv_id": "quant-ph/9904044",
"authors": [
"Y. Japha",
"G. Kurizki"
],
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"quant-ph"
],
"doi": "10.1103/PhysRevA.60.1811",
"title": "The Faraday Quantum Clock and Non-local Photon Pair Correlations",
"url": "https://arxiv.org/abs/quant-ph/9904044"
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