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Trapped Ion Quantum Computing

Optimal Control for Open Quantum System in Circuit Quantum Electrodynamics

arXiv
Authors: Mo Zhou, F. A. Cárdenas-López, Sugny Dominique, Xi Chen

Year

2024

Paper ID

56901

Status

Preprint

Abstract Read

~2 min

Abstract Words

105

Citations

N/A

Abstract

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.

Why This Paper Matters

  • This paper contributes to the Trapped-Ion Quantum Computing research area in the Quantum Articles archive.
  • It adds a 2024 reference point for readers tracking recent quantum research.
  • We propose a quantum optimal control framework based on the Pontryagin Maximum Principle to design energy- and time-efficient pulses for open quantum systems.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2412.20149 [2] arXiv https://arxiv.org/abs/2412.20149 [3] Publisher https://arxiv.org/abs/2412.20149

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