dorsal/arxiv
View SchemaConstructing finite dimensional codes with optical continuous variables
| Authors | S. Pirandola, S. Mancini, D. Vitali, P. Tombesi |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0402202 |
| URL | https://arxiv.org/abs/quant-ph/0402202 |
| DOI | 10.1209/epl/i2004-10203-9 |
| Journal | Europhys. Lett. 68, 323 (2004) |
Abstract
We show how a qubit can be fault-tolerantly encoded in the infinite-dimensional Hilbert space of an optical mode. The scheme is efficient and realizable with present technologies. In fact, it involves two travelling optical modes coupled by a cross-Kerr interaction, initially prepared in coherent states, one of which is much more intense than the other. At the exit of the Kerr medium, the weak mode is subject to a homodyne measurement and a quantum codeword is conditionally generated in the quantum fluctuations of the intense mode.
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"abstract": "We show how a qubit can be fault-tolerantly encoded in the\ninfinite-dimensional Hilbert space of an optical mode. The scheme is efficient\nand realizable with present technologies. In fact, it involves two travelling\noptical modes coupled by a cross-Kerr interaction, initially prepared in\ncoherent states, one of which is much more intense than the other. At the exit\nof the Kerr medium, the weak mode is subject to a homodyne measurement and a\nquantum codeword is conditionally generated in the quantum fluctuations of the\nintense mode.",
"arxiv_id": "quant-ph/0402202",
"authors": [
"S. Pirandola",
"S. Mancini",
"D. Vitali",
"P. Tombesi"
],
"categories": [
"quant-ph"
],
"doi": "10.1209/epl/i2004-10203-9",
"journal_ref": "Europhys. Lett. 68, 323 (2004)",
"title": "Constructing finite dimensional codes with optical continuous variables",
"url": "https://arxiv.org/abs/quant-ph/0402202"
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