Detuning-modulated composite pulses for high-fidelity robust quantum control

Abstract

We introduce a novel control method for robust quantum information processing suited for quantum integrated photonics. We utilize off-resonant detunings as control parameters to derive a new family of composite pulses for high-fidelity population transfer within the quantum error threshold. By design, our detuning-modulated N-piece composite sequences correct for any control inaccuracies including pulse strength, duration, resonance offsets errors, Stark shifts, unwanted frequency chirp, etc. We reveal the symmetries of the pulses that allow for straightforward scaling with minimal pulse overhead for an arbitrary N. Furthermore, we implement the composite solutions in coupled waveguides allowing a complete light transfer that is robust to fabrication errors.

arXiv comment5 pages, 5 figures

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Cited by in corpus (12)

• Robust single-qubit gates by composite pulses in three-level systems
• Robust control of a NOT gate by composite pulses
• High-fidelity quantum control by polychromatic pulse trains
• Robust Quantum Control against Clock Noises in Multi-Qubit Systems
• Supervised learning for robust quantum control in composite-pulse systems
• Robust population inversion in three-level systems by composite pulses
• Composite pulses for high fidelity population transfer in three-level systems
• Fault-Tolerant Directional Couplers for State Manipulation in Silicon Photonic-Integrated Circuits
• General off-resonance error robust symmetric composite pulses with three elementary operations
• Segmented Composite Design of Robust Single-Qubit Quantum Gates
• Universal quantum control with dynamical correction
• Efficient Robust Spontaneous Parametric Down-Conversion via Detuning Modulated Composite Segments Designs