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- Publisher Website: 10.1103/PhysRevA.62.012313
- Scopus: eid_2-s2.0-0034230106
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Article: Classical-communication cost in distributed quantum-information processing: a generalization of quantum-communication complexity
Title | Classical-communication cost in distributed quantum-information processing: a generalization of quantum-communication complexity |
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Authors | |
Issue Date | 2000 |
Citation | Physical Review A - Atomic, Molecular, and Optical Physics, 2000, v. 62, n. 1, article no. 012313 How to Cite? |
Abstract | We study the amount of classical communication needed for distributed quantum-information processing. In particular, we introduce the concept of “remote preparation” of a quantum state. Given an ensemble of states, Alice’s task is to help Bob in a distant laboratory to prepare a state of her choice. We find several examples of an ensemble with an entropy S where the remote preparation can be done with a communication cost lower than the amount (2S) required by standard teleportation. We conjecture that, for an arbitrary N-dimensional pure state, its remote preparation requires 2log2N bits of classical communication, as in standard teleportation. |
Persistent Identifier | http://hdl.handle.net/10722/285555 |
ISSN | 2014 Impact Factor: 2.808 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Lo, Hoi Kwong | - |
dc.date.accessioned | 2020-08-18T04:56:03Z | - |
dc.date.available | 2020-08-18T04:56:03Z | - |
dc.date.issued | 2000 | - |
dc.identifier.citation | Physical Review A - Atomic, Molecular, and Optical Physics, 2000, v. 62, n. 1, article no. 012313 | - |
dc.identifier.issn | 1050-2947 | - |
dc.identifier.uri | http://hdl.handle.net/10722/285555 | - |
dc.description.abstract | We study the amount of classical communication needed for distributed quantum-information processing. In particular, we introduce the concept of “remote preparation” of a quantum state. Given an ensemble of states, Alice’s task is to help Bob in a distant laboratory to prepare a state of her choice. We find several examples of an ensemble with an entropy S where the remote preparation can be done with a communication cost lower than the amount (2S) required by standard teleportation. We conjecture that, for an arbitrary N-dimensional pure state, its remote preparation requires 2log2N bits of classical communication, as in standard teleportation. | - |
dc.language | eng | - |
dc.relation.ispartof | Physical Review A - Atomic, Molecular, and Optical Physics | - |
dc.title | Classical-communication cost in distributed quantum-information processing: a generalization of quantum-communication complexity | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1103/PhysRevA.62.012313 | - |
dc.identifier.scopus | eid_2-s2.0-0034230106 | - |
dc.identifier.volume | 62 | - |
dc.identifier.issue | 1 | - |
dc.identifier.spage | article no. 012313 | - |
dc.identifier.epage | article no. 012313 | - |
dc.identifier.isi | WOS:000088139800038 | - |
dc.identifier.issnl | 1050-2947 | - |