Dynamical control of state transfer through noisy quantum channels: optimal tradeoff of speed and fidelity

2013/10/06 by Analía Zwick, Analia Zwick, Zwick, Analia +7 · 1 citation
Computer Science · Physics and Astronomy · #FOS: Physical sciences #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum Physics (quant-ph) #Quantum and electron transport phenomena #quant-ph

paper · pdf · doi:10.48550/arxiv.1310.1621

arxiv created 2013/10/06 · openalex publication_date 2013/10/06 · arxiv updated 2013/10/08 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We propose a method of optimally controlling state transfer through a noisy quantum channel (spin-chain). This process is treated as qubit state-transfer through a fermionic bath. We show that dynamical modulation of the boundary-qubits levels suffices to ensure fast and high-fidelity state transfer. This is achievable by dynamically optimizing the transmission spectrum of the channel. The resulting optimal control is robust against both static and fluctuating noise.

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• Optimized dynamical control of state transfer through noisy spin chains

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