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http://hdl.handle.net/2289/3062
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DC Field | Value | Language |
---|---|---|
dc.contributor.author | Srikanth, R. | - |
dc.date.accessioned | 2007-06-21T08:31:50Z | - |
dc.date.available | 2007-06-21T08:31:50Z | - |
dc.date.issued | 2004-03-23 | - |
dc.identifier.citation | Physica Scripta, 2004, Vol.70, p343-346 | en |
dc.identifier.issn | 0031-8949 | - |
dc.identifier.issn | 1402-4896 (Online) | - |
dc.identifier.uri | http://hdl.handle.net/2289/3062 | - |
dc.description | Restricted Access. | en |
dc.description.abstract | Entanglement-based attacks, which are subtle and powerful, are usually believed to render quantum bit commitment insecure. We point out that the no-go argument leading to this view implicitly assumes the evidence-of-commitment to be a monolithic quantum system. We argue that more general evidence structures, allowing for a composite, hybrid (classical–quantum) evidence, conduce to improved security. In particular, we present and prove the security of the following protocol Bob sends Alice an anonymous state. She inscribes her commitment b by measuring part of it in the + (for b = 0) or × (for b = 1) basis. She then communicates to him the (classical) measurement outcome Rx and the partmeasured anonymous state interpolated into other, randomly prepared qubits as her evidence-of-commitment. | en |
dc.format.extent | 249374 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | en | en |
dc.publisher | IOP Publishing Ltd. | en |
dc.relation.uri | http://dx.doi.org/10.1088/0031-8949/70/6/002 | en |
dc.rights | 2004 IOP Publishing Ltd. | en |
dc.title | Quantum bit commitment with a composite evidence | en |
dc.type | Article | en |
Appears in Collections: | Research Papers (LAMP) |
Files in This Item:
File | Description | Size | Format | |
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2004 PhyScr 70 p343.pdf Restricted Access | Restricted Access | 243.53 kB | Adobe PDF | View/Open Request a copy |
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