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Location Qubits in a Multiple-Quantum-Dot System.
Li, Dayang; Radhakrishnan, Rohan; Akopian, Nika.
Afiliación
  • Li D; DTU Department of Electrical and Photonics Engineering, Technical University of Denmark, Ørsteds Plads Building 343, 2800 Kongens Lyngby, Denmark.
  • Radhakrishnan R; DTU Department of Electrical and Photonics Engineering, Technical University of Denmark, Ørsteds Plads Building 343, 2800 Kongens Lyngby, Denmark.
  • Akopian N; DTU Department of Electrical and Photonics Engineering, Technical University of Denmark, Ørsteds Plads Building 343, 2800 Kongens Lyngby, Denmark.
Nano Lett ; 24(18): 5656-5661, 2024 May 08.
Article en En | MEDLINE | ID: mdl-38657275
ABSTRACT
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.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nano Lett Año: 2024 Tipo del documento: Article País de afiliación: Dinamarca Pais de publicación: Estados Unidos

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nano Lett Año: 2024 Tipo del documento: Article País de afiliación: Dinamarca Pais de publicación: Estados Unidos