Remote information concentration and multipartite entanglement in multilevel systems

Journal Article · Sat Oct 15 04:00:00 EDT 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.84.042310· OSTI ID:22080350

Xinwen, Wang; Dengyu, Zhang; Shiqing, Tang; Lijun, Xie ^[1]; Guojian, Yang ^[2]

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1. Department of Physics and Electronic Information, Hengyang Normal University, Hengyang 421008 (China)
2. Department of Physics, Beijing Normal University, Beijing 100875 (China)

Remote information concentration (RIC) in d-level systems (qudits) is studied. It is shown that the quantum information initially distributed in three spatially separated qudits can be remotely and deterministically concentrated to a single qudit via an entangled channel without performing any global operations. The entangled channel can be different types of genuine multipartite pure entangled states which are inequivalent under local operations and classical communication. The entangled channel can also be a mixed entangled state, even a bound entangled state which has a similar form to the Smolin state, but has different features from the Smolin state. A common feature of all these pure and mixed entangled states is found; i.e., they have d{sup 2} common commuting stabilizers. The differences of qudit-RIC and qubit-RIC (d=2) are also analyzed.

• OSTI ID: 22080350
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 4 Vol. 84; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
DATA TRANSMISSION
QUANTUM ENTANGLEMENT
QUANTUM INFORMATION