Production of multipartite entanglement for electron spins in quantum dots

Abstract

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.

arXiv comment8 pages, 2 Figures

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Cited by in corpus (8)

• Circuit Quantum Electrodynamics
• Thermal entanglement in the anisotropic Heisenberg XXZ model with the Dzyaloshinskii-Moriya interaction
• Proposal for generating and detecting multi-qubit GHZ states in circuit QED
• One-step multi-qubit GHZ state generation in a circuit QED system
• Mediated gates between spin qubits
• Greenberger-Horne-Zeilinger state protocols for fully connected qubit networks
• Decay of Entanglement for Solid-State Qubits
• Hyperfine interaction induced decoherence and deterministic teleportation of electrons in a quantum dot nanostructure