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  • Open Access

High-fidelity quantum state transfer in multimode resonators via tunable pulses

Yuanning Chen, Xinxin Yang, and Simon Gröblacher*

  • *Contact author: s.groeblacher@tudelft.nl
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Phys. Rev. A 114, 032212 – Published 17 September, 2026

DOI: https://doi.org/10.1103/brt1-c8yd

Abstract

Quantum state transfer between distant nodes is essential for distributed quantum information processing. Existing protocols are typically optimized for specific coupling regimes, such as adiabatic dark-state transfer in the single-mode limit and pitch-and-catch schemes in the multimode regime, leaving the crossover between them without a simple and unified control strategy. Here, we identify a minimal two-parameter control framework that enables high-fidelity quantum state transfer across this single-mode–to–multimode crossover in a multimode quantum channel. Using a pulse-shaped pitch-and-catch protocol controlled only by the pulse ramp rate and the emission-absorption delay, we achieve transfer fidelities exceeding 99.9%, extending pitch-and-catch protocols toward the single-mode limit without requiring dark-state protection or complex pulse design. We further demonstrate robustness against dissipation, disorder, detuning, and imperfect initialization under experimentally realistic conditions. These results provide a simple and broadly applicable framework for state transfer in multimode quantum channels, with relevance to circuit-QED and hybrid quantum-acoustic systems.

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Phys. Rev. A 114, 032212– Published 17 September, 2026
  • Received 26 March 2026
  • Accepted 22 July 2026
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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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