dorsal/arxiv
View SchemaEffects of twin-beam squashed light on a three-level atom
| Authors | L. K. Thomsen, H. M. Wiseman |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0104040 |
| URL | https://arxiv.org/abs/quant-ph/0104040 |
| DOI | 10.1103/PhysRevA.64.043805 |
| Journal | PRA 64, 043805 (2001) |
Abstract
An electro-optical feedback loop can make in-loop light (squashed light) which produces a photocurrent with noise below the standard quantum limit (such as squeezed light). We investigate the effect of squashed light interacting with a three-level atom in the cascade configuration and compare it to the effects produced by squeezed light and classical noise. It turns out that one master equation can be formulated for all three types of light and that this unified formalism can also be applied to the evolution of a two-level atom. We show that squashed light does not mimic all aspects of squeezed light, and in particular, it does not produce the characteristic linear intensity dependence of the population of the upper-most level of the cascade three-level atom. Nevertheless, it has nonclassical transient effects in the de-excitation.
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"abstract": "An electro-optical feedback loop can make in-loop light (squashed light)\nwhich produces a photocurrent with noise below the standard quantum limit (such\nas squeezed light). We investigate the effect of squashed light interacting\nwith a three-level atom in the cascade configuration and compare it to the\neffects produced by squeezed light and classical noise. It turns out that one\nmaster equation can be formulated for all three types of light and that this\nunified formalism can also be applied to the evolution of a two-level atom. We\nshow that squashed light does not mimic all aspects of squeezed light, and in\nparticular, it does not produce the characteristic linear intensity dependence\nof the population of the upper-most level of the cascade three-level atom.\nNevertheless, it has nonclassical transient effects in the de-excitation.",
"arxiv_id": "quant-ph/0104040",
"authors": [
"L. K. Thomsen",
"H. M. Wiseman"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.64.043805",
"journal_ref": "PRA 64, 043805 (2001)",
"title": "Effects of twin-beam squashed light on a three-level atom",
"url": "https://arxiv.org/abs/quant-ph/0104040"
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