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- Title
Two-step entanglement concentration for arbitrary electronic cluster state.
- Authors
Zhao, Sheng-Yang; Liu, Jiong; Zhou, Lan; Sheng, Yu-Bo
- Abstract
We present an efficient protocol for concentrating an arbitrary four-electron less-entangled cluster state into a maximally entangled cluster state. As a two-step entanglement concentration protocol (ECP), it only needs one pair of less-entangled cluster state, which makes this ECP more economical. With the help of electronic polarization beam splitter (PBS) and the charge detection, the whole concentration process is essentially the quantum nondemolition (QND) measurement. Therefore, the concentrated maximally entangled state can be remained for further application. Moreover, the discarded terms in some traditional ECPs can be reused to obtain a high success probability. It is feasible and useful in current one-way quantum computation.
- Subjects
BEAM splitters; POLARIZATION (Electricity); QUANTUM computing; FEASIBILITY studies; COMPUTER networks; PARTICLES (Nuclear physics)
- Publication
Quantum Information Processing, 2013, Vol 12, Issue 12, p3633
- ISSN
1570-0755
- Publication type
Article
- DOI
10.1007/s11128-013-0623-8