Fast high-fidelity multiqubit state transfer with long-range interactions

Yifan Hong and Andrew Lucas
Phys. Rev. A 103, 042425 – Published 28 April 2021

Abstract

We describe an efficient protocol to perform quantum state transfer using Hamiltonian dynamics with long-range interactions. The time to transfer n qubits a sufficiently large distance is proportional to n. Even without error correction, the fidelity of this multiqubit state transfer process remains finite for arbitrarily-well-separated qubits in the presence of uncorrelated random errors in coupling constants.

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  • Received 17 September 2020
  • Accepted 12 April 2021

DOI:https://doi.org/10.1103/PhysRevA.103.042425

©2021 American Physical Society

Physics Subject Headings (PhySH)

Quantum Information, Science & TechnologyAtomic, Molecular & Optical

Authors & Affiliations

Yifan Hong* and Andrew Lucas

  • Department of Physics and Center for Theory of Quantum Matter, University of Colorado, Boulder, Colorado 80309, USA

  • *yifan.hong@colorado.edu
  • andrew.j.lucas@colorado.edu

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Issue

Vol. 103, Iss. 4 — April 2021

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