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Sequential generation of entangled multiqubit states

Schön, C. and Solano, E. and Verstraete, F. and Cirac, J. I. and Wolf, M. M. (2005) Sequential generation of entangled multiqubit states. Physical Review Letters, 95 (11). Art. No. 110503. ISSN 0031-9007. doi:10.1103/PhysRevLett.95.110503.

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We consider the deterministic generation of entangled multiqubit states by the sequential coupling of an ancillary system to initially uncorrelated qubits. We characterize all achievable states in terms of classes of matrix-product states and give a recipe for the generation on demand of any multiqubit state. The proposed methods are suitable for any sequential generation scheme, though we focus on streams of single-photon time-bin qubits emitted by an atom coupled to an optical cavity. We show, in particular, how to generate familiar quantum information states such as W, Greenberger-Horne-Zeilinger, and cluster states within such a framework.

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Additional Information:©2005 The American Physical Society. Received 18 January 2005; published 9 September 2005. C.S. wants to thank K. Hammerer for useful discussions. This work was supported by EU through RESQ project and the "Kompetenznetzwerk Quanteninformationsverarbeitung der Bayerischen Staatsregierung."
Subject Keywords:quantum entanglement
Issue or Number:11
Record Number:CaltechAUTHORS:SCHOprl05
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:3613
Deposited By: Tony Diaz
Deposited On:21 Jun 2006
Last Modified:08 Nov 2021 20:10

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