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Robust implicit quantum control of interacting spin chains

Luca Stefanescu, Louis Edwards-Pratt, Jeremy O'Connor, Ezra Tsegaye, Nguyen H. Le, and Florian Mintert

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Phys. Rev. A 112, 012609 – Published 10 July, 2025

DOI: https://doi.org/10.1103/zmcn-ddkj

Abstract

Robust quantum control can achieve noise resilience of quantum systems and quantum technological devices. While the need for noise resilience grows with the number of fluctuating quantities, and thus typically with the number of qubits, most numerically exact optimal control techniques are limited to systems of few interacting qubits. This paper exploits quantum control that avoids explicit reference to quantum states in exponentially large Hilbert space. Exemplary control protocols for spin chains are discussed in terms of noise-resilient preparation of highly entangled states.

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Phys. Rev. A 112, 012609– Published 10 July, 2025
  • Received 16 December 2024
  • Accepted 23 June 2025
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