Chefles, A. and Gilson, C.R. and Barnett, S.M. (2000) Entanglement and collective quantum operations. Physics Letters A, 273 (1). pp. 10-14. ISSN 0375-9601
Full text not available in this repository. (Request a copy from the Strathclyde author)Official URL: http://dx.doi.org/10.1016/S0375-9601(00)00461-8
Abstract
We show how shared entanglement, together with classical communication and local quantum operations, can be used to perform an arbitrary collective quantum operation upon N spatially-separated qubits. A simple teleportation-based protocol for achieving this, which requires 2(N-1) ebits of shared, bipartite entanglement and 4(N-1) classical bits, is proposed. In terms of the total required entanglement, this protocol is shown to be optimal for even N in both the asymptotic limit and for 'one-shot' applications.
| Item type: | Article |
|---|---|
| ID code: | 5848 |
| Keywords: | quantum operations, entanglement, quantum physics, Optics. Light, Physics |
| Subjects: | Science > Physics > Optics. Light Science > Physics |
| Department: | Unknown Department Faculty of Science > Physics |
| Related URLs: | |
| Depositing user: | Miss Darcy Spiller |
| Date Deposited: | 29 Apr 2008 |
| Last modified: | 04 Oct 2012 12:01 |
| URI: | http://strathprints.strath.ac.uk/id/eprint/5848 |
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