Achieving fast and robust perfect entangling gates via reinforcement learning
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arXiv
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| Format: | Preprint |
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2025
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| author | Grech, Leander Krauss, Matthias G. Consiglio, Mirko Apollaro, Tony J. G. Koch, Christiane P. Hirlaender, Simon Valentino, Gianluca |
| author_facet | Grech, Leander Krauss, Matthias G. Consiglio, Mirko Apollaro, Tony J. G. Koch, Christiane P. Hirlaender, Simon Valentino, Gianluca |
| contents | Noisy intermediate-scale quantum computers hold the promise of tackling complex and otherwise intractable computational challenges through the massive parallelism offered by qubits. Central to realizing the potential of quantum computing are perfect entangling (PE) two-qubit gates, which serve as a critical building block for universal quantum computation. In the context of quantum optimal control, shaping electromagnetic pulses to drive quantum gates is crucial for pushing gate performance toward theoretical limits. In this work, we leverage reinforcement learning (RL) techniques to discover near-optimal pulse shapes that yield PE gates. A collection of RL agents is trained within robust simulation environments, enabling the identification of effective control strategies even under noisy conditions. Selected agents are then validated on higher-fidelity simulations, illustrating how RL-based methods can reduce calibration overhead when compared to quantum optimal control techniques. Furthermore, the RL approach is hardware agnostic with the potential for broad applicability across various quantum computing platforms. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_07076 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Achieving fast and robust perfect entangling gates via reinforcement learning Grech, Leander Krauss, Matthias G. Consiglio, Mirko Apollaro, Tony J. G. Koch, Christiane P. Hirlaender, Simon Valentino, Gianluca Quantum Physics Noisy intermediate-scale quantum computers hold the promise of tackling complex and otherwise intractable computational challenges through the massive parallelism offered by qubits. Central to realizing the potential of quantum computing are perfect entangling (PE) two-qubit gates, which serve as a critical building block for universal quantum computation. In the context of quantum optimal control, shaping electromagnetic pulses to drive quantum gates is crucial for pushing gate performance toward theoretical limits. In this work, we leverage reinforcement learning (RL) techniques to discover near-optimal pulse shapes that yield PE gates. A collection of RL agents is trained within robust simulation environments, enabling the identification of effective control strategies even under noisy conditions. Selected agents are then validated on higher-fidelity simulations, illustrating how RL-based methods can reduce calibration overhead when compared to quantum optimal control techniques. Furthermore, the RL approach is hardware agnostic with the potential for broad applicability across various quantum computing platforms. |
| title | Achieving fast and robust perfect entangling gates via reinforcement learning |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2511.07076 |