English

Remote information concentration and multipartite entanglement in multilevel systems

Quantum Physics 2015-03-19 v2 Mathematical Physics math.MP

Abstract

Remote information concentration (RIC) in dd-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 d2d^2 common commuting stabilizers. The differences of qudit-RIC and qubit-RIC (d=2d=2) are also analyzed.

Keywords

Cite

@article{arxiv.1106.0795,
  title  = {Remote information concentration and multipartite entanglement in multilevel systems},
  author = {Xin-Wen Wang and Deng-Yu Zhang and Guo-Jian Yang and Shi-Qing Tang and Li-Jun Xie},
  journal= {arXiv preprint arXiv:1106.0795},
  year   = {2015}
}

Comments

10 pages, 3 figures

R2 v1 2026-06-21T18:17:42.168Z