dorsal/arxiv
View SchemaEngineering Quantum Jump Superoperators for Single Photon Detectors
| Authors | A. V. Dodonov, S. S. Mizrahi, V. V. Dodonov |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0601037 |
| URL | https://arxiv.org/abs/quant-ph/0601037 |
| DOI | 10.1103/PhysRevA.74.033823 |
| Journal | Physical Review A 74, 033823 (2006) |
Abstract
We study the back-action of a single photon detector on the electromagnetic field upon a photodetection by considering a microscopic model in which the detector is constituted of a sensor and an amplification mechanism. Using the quantum trajectories approach we determine the Quantum Jump Superoperator (QJS) that describes the action of the detector on the field state immediately after the photocount. The resulting QJS consists of two parts: the bright counts term, representing the real photoabsorptions, and the dark counts term, representing the amplification of intrinsic excitations inside the detector. First we compare our results for the counting rates to experimental data, showing a good agreement. Then we point out that by modifying the field frequency one can engineer the form of QJS, obtaining the QJS's proposed previously in an ad hoc manner.
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"abstract": "We study the back-action of a single photon detector on the electromagnetic\nfield upon a photodetection by considering a microscopic model in which the\ndetector is constituted of a sensor and an amplification mechanism. Using the\nquantum trajectories approach we determine the Quantum Jump Superoperator (QJS)\nthat describes the action of the detector on the field state immediately after\nthe photocount. The resulting QJS consists of two parts: the bright counts\nterm, representing the real photoabsorptions, and the dark counts term,\nrepresenting the amplification of intrinsic excitations inside the detector.\nFirst we compare our results for the counting rates to experimental data,\nshowing a good agreement. Then we point out that by modifying the field\nfrequency one can engineer the form of QJS, obtaining the QJS\u0027s proposed\npreviously in an ad hoc manner.",
"arxiv_id": "quant-ph/0601037",
"authors": [
"A. V. Dodonov",
"S. S. Mizrahi",
"V. V. Dodonov"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.74.033823",
"journal_ref": "Physical Review A 74, 033823 (2006)",
"title": "Engineering Quantum Jump Superoperators for Single Photon Detectors",
"url": "https://arxiv.org/abs/quant-ph/0601037"
},
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