dorsal/arxiv
View SchemaCoupled cavities for enhancing the cross-phase modulation in electromagnetically induced transparency
| Authors | T. Opatrny, D. -G. Welsch |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0012073 |
| URL | https://arxiv.org/abs/quant-ph/0012073 |
| DOI | 10.1103/PhysRevA.64.023805 |
Abstract
We propose an optical double-cavity resonator whose response to a signal is similar to that of an Electromagnetically Induced Transparency (EIT) medium. A combination of such a device with a four-level EIT medium can serve for achieving large cross-Kerr modulation of a probe field by a signal field. This would offer the possibility of building a quantum logic gate based on photonic qubits. We discuss the technical requirements that are necessary for realizing a probe-photon phase shift of Pi caused by a single-photon signal. The main difficulty is the requirement of an ultra-low reflectivity beamsplitter and to operate a sufficiently dense cool EIT medium in a cavity.
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"abstract": "We propose an optical double-cavity resonator whose response to a signal is\nsimilar to that of an Electromagnetically Induced Transparency (EIT) medium. A\ncombination of such a device with a four-level EIT medium can serve for\nachieving large cross-Kerr modulation of a probe field by a signal field. This\nwould offer the possibility of building a quantum logic gate based on photonic\nqubits. We discuss the technical requirements that are necessary for realizing\na probe-photon phase shift of Pi caused by a single-photon signal. The main\ndifficulty is the requirement of an ultra-low reflectivity beamsplitter and to\noperate a sufficiently dense cool EIT medium in a cavity.",
"arxiv_id": "quant-ph/0012073",
"authors": [
"T. Opatrny",
"D. -G. Welsch"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.64.023805",
"title": "Coupled cavities for enhancing the cross-phase modulation in electromagnetically induced transparency",
"url": "https://arxiv.org/abs/quant-ph/0012073"
},
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