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Location Qubits in a Multiple-Quantum-Dot System
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DOI：10.1021/acs.nanolett.4c01272.png)
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A physical platform for nodes of the envisioned quantum Internet is long-sought. Here we propose such a platform, along with a conceptually simple and experimentally uncomplicated quantum information processing scheme, realized in a system of multiple crystal-phase quantum dots. We introduce novel location qubits, describe a method to construct a universal set of all-optical quantum gates, and simulate their performance in realistic structures, including decoherence sources. Our results show that location qubits are robust against the main decoherence mechanisms, and realistic single-qubit gate fidelities exceed 99.9%. Our scheme paves a clear way toward constructing multiqubit solid-state quantum registers with a built-in photonic interface-a key building block of the forthcoming quantum Internet.
Keyword:
Optically active nanowire quantum dots
crystal-phasequantum structure
location qubit
optical quantumcontrol
adiabatic Raman technique
期刊
IF:
9.1
论文数:
2.7W
被引数:
16.5W
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引用论文
Crystal Phase Quantum Dots in the Ultrathin Core of GaAs-AlGaAs Core-Shell Nanowires.png)
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