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arXiv · 1310.1621

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

Analia Zwick·Gonzalo A. Alvarez·Guy Bensky·Gershon Kurizki
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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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Analia Zwick, Gonzalo A. Alvarez, Guy Bensky, Gershon Kurizki. 2013-10-06. Dynamical control of state transfer through noisy quantum channels: optimal tradeoff of speed and fidelity. https://arxiv.org/abs/1310.1621

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