Entanglement generation via a completely mixed nuclear spin bath

Details Entanglement generation via a completely mixed nuclear spin bath Entanglement generation via a completely mixed nuclear spin bath

2007-10-22

arxiv.org/abs/0710.4120v2

Phys. Rev. B 78, 125314 (2008)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4+pages, 3 figures

Scientific paper

10.1103/PhysRevB.78.125314

We show that qubits coupled sequentially to a mesoscopic static completely mixed spin bath via the Heisenberg interaction can become highly entangled. Straightforward protocols for the generation of multipartite entangled (Greenberger-Horne-Zeilinger-)states are presented. We show the feasibility of an experimental realization in a quantum dot by the hyperfine interaction of an electron with the nuclear spins.

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