dorsal/arxiv
View SchemaTrapping state restoration in the randomly-driven Jaynes-Cummings model by conditional measurements
| Authors | Mauro Fortunato, Gershon Kurizki, Wolfgang P. Schleich |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9808049 |
| URL | https://arxiv.org/abs/quant-ph/9808049 |
| DOI | 10.1103/PhysRevA.59.714 |
| Journal | Phys.Rev. A59 (1999) 714 |
Abstract
We propose a scheme which can effectively restore fixed points in the quantum dynamics of repeated Jaynes-Cummings interactions followed by atomic state measurements, when the interaction times fluctuate randomly. It is based on selection of superposed atomic states whose phase correlations tend to suppress the phase fluctuations of each separate state. One suggested realization involves the convergence of the cavity field distribution to a single Fock state by conditional measurements performed on two-level atoms with fluctuating velocities after they cross the cavity. Another realization involves a trapped ion whose internal-motional state coupling fluctuates randomly. Its motional state is made to converge to a Fock state by conditional measurements of the internal state of the ion.
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"abstract": "We propose a scheme which can effectively restore fixed points in the quantum\ndynamics of repeated Jaynes-Cummings interactions followed by atomic state\nmeasurements, when the interaction times fluctuate randomly. It is based on\nselection of superposed atomic states whose phase correlations tend to suppress\nthe phase fluctuations of each separate state. One suggested realization\ninvolves the convergence of the cavity field distribution to a single Fock\nstate by conditional measurements performed on two-level atoms with fluctuating\nvelocities after they cross the cavity. Another realization involves a trapped\nion whose internal-motional state coupling fluctuates randomly. Its motional\nstate is made to converge to a Fock state by conditional measurements of the\ninternal state of the ion.",
"arxiv_id": "quant-ph/9808049",
"authors": [
"Mauro Fortunato",
"Gershon Kurizki",
"Wolfgang P. Schleich"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.59.714",
"journal_ref": "Phys.Rev. A59 (1999) 714",
"title": "Trapping state restoration in the randomly-driven Jaynes-Cummings model by conditional measurements",
"url": "https://arxiv.org/abs/quant-ph/9808049"
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