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About this paper
Xiangyu Ren, Junjie Wan, Zhiding Liang, Antonio Barbalace
This research from The University of Edinburgh and Rensselaer Polytechnic Institute presents a cross-layer compiler optimization framework designed to mitigate coherent noise in quantum circuits. The framework, which integrates program, gate, and pulse-level optimizations based on hidden inverse theory, demonstrated an average fidelity improvement of 45% and a maximum improvement of 92% on real IBM quantum hardware.
Key insights
- Coherent errors can be actively canceled by exploiting specific 'hidden inverse' patterns within quantum circuits, applying a gate and its inverse in sequence.
- Integrating optimization across program, gate, and pulse layers offers synergistic benefits, overcoming limitations of single-layer error mitigation.
- Developing specialized inverse pulses for multi-qubit gates allows for effective cancellation of over-rotation and phase errors directly at the hardware control level.
Summary by alphaXiv.
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