Production of multipartite entanglement for electron spins in quantum dots

Details Production of multipartite entanglement for electron spins in quantum dots Production of multipartite entanglement for electron spins in quantum dots

2007-07-09

arxiv.org/abs/0707.1267v2

Phys. Rev. A 76, 052309 (2007)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

8 pages, 2 Figures

Scientific paper

10.1103/PhysRevA.76.052309

We propose how to generate genuine multipartite entanglement of electron spin qubits in a chain of quantum dots using the naturally available single-qubit rotations and two-qubit Heisenberg exchange interaction in the system. We show that the minimum number of required operations to generate entangled states of the GHZ-, cluster and W-type scales linearly with the number of qubits and estimate the fidelities of the generated entangled cluster states. As the required single and two-qubit operations have recently been realized, our proposed scheme opens the way for experimental investigation of multipartite entanglement with electron spin qubits.

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