Scalable Robust Quantum Control for Semiconductor Spin Qubits with Always-on Couplings
Fuente:
arXiv
Enregistré dans:
| Auteurs principaux: | , , , , , |
|---|---|
| Format: | Preprint |
| Publié: |
2025
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1866916653928808448 |
|---|---|
| author | Hai, Yong-Ju Zhang, Shihang Guan, Haoyu Huang, Peihao He, Yu Deng, Xiu-Hao |
| author_facet | Hai, Yong-Ju Zhang, Shihang Guan, Haoyu Huang, Peihao He, Yu Deng, Xiu-Hao |
| contents | We demonstrate a robust quantum control framework that enables high-fidelity gate operations in semiconductor spin qubit systems with always-on couplings. Always-on interactions between qubits pose a fundamental challenge for quantum processors by inducing correlated errors that can trigger chaotic dynamics. Our approach suppresses both static coupling noise and time-dependent crosstalk without requiring high on/off ratio tunable couplers. Significantly, these pulses also prevent the emergence of chaotic entanglement growth in deep quantum circuits, preserving coherence in large multi-qubit systems. By relaxing hardware constraints on coupling control, our method provides a practical path toward scaling semiconductor quantum processors within existing fabrication capabilities, with particular relevance for silicon spin qubit architectures where high-contrast coupling modulation remains challenging. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_12795 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Scalable Robust Quantum Control for Semiconductor Spin Qubits with Always-on Couplings Hai, Yong-Ju Zhang, Shihang Guan, Haoyu Huang, Peihao He, Yu Deng, Xiu-Hao Quantum Physics Mesoscale and Nanoscale Physics We demonstrate a robust quantum control framework that enables high-fidelity gate operations in semiconductor spin qubit systems with always-on couplings. Always-on interactions between qubits pose a fundamental challenge for quantum processors by inducing correlated errors that can trigger chaotic dynamics. Our approach suppresses both static coupling noise and time-dependent crosstalk without requiring high on/off ratio tunable couplers. Significantly, these pulses also prevent the emergence of chaotic entanglement growth in deep quantum circuits, preserving coherence in large multi-qubit systems. By relaxing hardware constraints on coupling control, our method provides a practical path toward scaling semiconductor quantum processors within existing fabrication capabilities, with particular relevance for silicon spin qubit architectures where high-contrast coupling modulation remains challenging. |
| title | Scalable Robust Quantum Control for Semiconductor Spin Qubits with Always-on Couplings |
| topic | Quantum Physics Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2503.12795 |