dorsal/arxiv
View SchemaRealizing probabilistic identification and cloning of quantum states via universal quantum logic gates
| Authors | Chuan-Wei Zhang, Zi-Yang Wang, Chuan-Feng Li, Guang-Can Guo |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9907097 |
| URL | https://arxiv.org/abs/quant-ph/9907097 |
| DOI | 10.1103/PhysRevA.61.062310 |
| Journal | Phys. Rev. A 61, 062310 (2000) |
Abstract
Probabilistic quantum cloning and identifying machines can be constructed via unitary-reduction processes [Duan and Guo, Phys. Rev. Lett. 80, 4999 (1998)]. Given the cloning (identifying) probabilities, we derive an explicit representation of the unitary evolution and corresponding Hamiltonian to realize probabilistic cloning (identification). The logic networks are obtained by decomposing the unitary representation into universal quantum logic operations. The robustness of the networks is also discussed. Our method is suitable for a $k$-partite system, such as quantum computer, and may be generalized to general state-dependent cloning and identification.
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"abstract": "Probabilistic quantum cloning and identifying machines can be constructed via\nunitary-reduction processes [Duan and Guo, Phys. Rev. Lett. 80, 4999 (1998)].\nGiven the cloning (identifying) probabilities, we derive an explicit\nrepresentation of the unitary evolution and corresponding Hamiltonian to\nrealize probabilistic cloning (identification). The logic networks are obtained\nby decomposing the unitary representation into universal quantum logic\noperations. The robustness of the networks is also discussed. Our method is\nsuitable for a $k$-partite system, such as quantum computer, and may be\ngeneralized to general state-dependent cloning and identification.",
"arxiv_id": "quant-ph/9907097",
"authors": [
"Chuan-Wei Zhang",
"Zi-Yang Wang",
"Chuan-Feng Li",
"Guang-Can Guo"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.61.062310",
"journal_ref": "Phys. Rev. A 61, 062310 (2000)",
"title": "Realizing probabilistic identification and cloning of quantum states via universal quantum logic gates",
"url": "https://arxiv.org/abs/quant-ph/9907097"
},
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