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Optimal Control for Open Quantum System in Circuit Quantum Electrodynamics

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arxiv 2412.20149 v1 pith:LN3O63WX submitted 2024-12-28 quant-ph

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keywords quantumcontrolcircuitopenpulsesdissipativeelectrodynamicsoptimal
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We propose a quantum optimal control framework based on the Pontryagin Maximum Principle to design energy- and time-efficient pulses for open quantum systems. By formulating the Langevin equation of a dissipative LC circuit as a linear control problem, we derive optimized pulses with exponential scaling in energy cost, outperforming conventional shortcut-to-adiabaticity methods such as counter-diabatic driving. When applied to a resonator dispersively coupled to a qubit, these optimized pulses achieve an excellent signal-to-noise ratio comparable to longitudinal coupling schemes across varying critical photon numbers. Our results provide a significant step toward efficient control in dissipative open systems and improved qubit readout in circuit quantum electrodynamics.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Quantum Transport Protected by Acceleration From Nonadiabaticity and Dissipation

    quant-ph 2025-06 conditional novelty 7.0 of 10

    Optimizing trap acceleration, rather than counterdiabatic fields, maximizes transport fidelity of a dissipating wavepacket even at supersonic speeds.

  2. Phase-Programmable Free Electron Quantum States in Synthetic Momentum Space

    quant-ph 2026-07 conditional novelty 6.0 of 10

    Phase-only Pontryagin optimization and deterministic Bragg-regime sequential coupling enable programmable free electron momentum-sideband populations and coherent superposition states with tunable relative phases.

  3. Arbitrary state preparation in quantum harmonic oscillators using neural networks

    quant-ph 2025-02 reject novelty 5.0 of 10

    A neural network predicts pulse sequences that prepare arbitrary qubit, qutrit, and qudit states in a harmonic oscillator, reaching 99.9% average fidelity for qubits and 97% for qutrits in simulation.

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