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  • Open Access

Control protocol for dynamic synthesis of qubit and qudit gates using photonic pulses and magnetic fields

A. F. Urquijo Rodríguez1,*, Edgar A. Gómez2, and H. Vinck-Posada1

  • 1Grupo de Superconductividad y Nanotecnología, Departamento de Física, Universidad Nacional de Colombia, Carrera 45 No. 26-85, Bogotá 111321, Colombia
  • 2Grupo de Investigación en Física Teórica y Computacional, Programa de Física, Universidad del Quindío, Armenia 630004, Colombia

  • *Contact author: afurquijor@unal.edu.co
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Phys. Rev. Research 7, 043280 – Published 10 December, 2025

DOI: https://doi.org/10.1103/b8q1-hn3f

Abstract

We propose a theoretical control protocol designed for the dynamic synthesis of single-qubit and four-level qudit quantum gates using external parameters, such as photonic Gaussian pulses and magnetic fields, in a microcavity-quantum well system. Our approach takes advantage of tunable coherent light-matter interactions that can be modulated by the magnetic field between the exciton and negative trion coupled to the lowest photonic mode. We demonstrate that it is possible to achieve precise manipulation of populations of encoded quantum states through the unitary evolution of the system. In particular, we illustrate our optimization method for generating a single-qubit gate with a mean fidelity of 99.99 as well as the realization of an iswap gate in the four-level qudit case with a fidelity of 99.6.

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Phys. Rev. Research 7, 043280– Published 10 December, 2025
  • Received 28 May 2025
  • Accepted 16 September 2025
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

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