dorsal/arxiv
View SchemaConditional evolution in single-atom cavity QED
| Authors | Andrei N. Soklakov, Ruediger Schack |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0104128 |
| URL | https://arxiv.org/abs/quant-ph/0104128 |
| DOI | 10.1103/PhysRevA.65.013804 |
| Journal | Phys. Rev. A 65, 013804 (2002) |
Abstract
We consider a typical setup of cavity QED consisting of a two-level atom interacting strongly with a single resonant electromagnetic field mode inside a cavity. The cavity is resonantly driven and the output undergoes continuous homodyne measurements. We derive an explicit expression for the state of the system conditional on a discrete photocount record. This expression takes a particularly simple form if the system is initially in the steady state. As a byproduct, we derive a general formula for the steady state that had been conjectured before in the strong driving limit.
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"abstract": "We consider a typical setup of cavity QED consisting of a two-level atom\ninteracting strongly with a single resonant electromagnetic field mode inside a\ncavity. The cavity is resonantly driven and the output undergoes continuous\nhomodyne measurements. We derive an explicit expression for the state of the\nsystem conditional on a discrete photocount record. This expression takes a\nparticularly simple form if the system is initially in the steady state. As a\nbyproduct, we derive a general formula for the steady state that had been\nconjectured before in the strong driving limit.",
"arxiv_id": "quant-ph/0104128",
"authors": [
"Andrei N. Soklakov",
"Ruediger Schack"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.65.013804",
"journal_ref": "Phys. Rev. A 65, 013804 (2002)",
"title": "Conditional evolution in single-atom cavity QED",
"url": "https://arxiv.org/abs/quant-ph/0104128"
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