A programmable qudit-based quantum processor

Jieshan Huang; Yulin Chi; Zhanchuan Zhang; Yan Yang; Jianwei Wang; Qihuang Gong

doi:10.1117/12.2648702

31 December 2022 A programmable qudit-based quantum processor

Jieshan Huang, Yulin Chi, Zhanchuan Zhang, Yan Yang, Jianwei Wang, Qihuang Gong

Proceedings Volume PC12323, Quantum and Nonlinear Optics IX; PC1232306 (2022) https://doi.org/10.1117/12.2648702
Event: SPIE/COS Photonics Asia, 2022, Online Only

Abstract

Controlling and programming quantum devices to process quantum information by the unit of qudit shows great potential to enhance the capabilities of qubit-based quantum technologies. Here, we report a programmable qudit-based quantum processor in silicon-photonic integrated circuits and demonstrate its enhancement of quantum computational parallelism. The processor monolithically integrates all the key functionalities and capabilities of initialisation, manipulation, and measurement of the two-ququart states and multi-value quantum-controlled logic gates with high-level fidelities. We implemented the basic quantum Fourier transform algorithms to benchmark the enhancement of quantum parallelism using qudits, allowing the implementations of more than one million high-fidelity preparations, operations and projections of qudit states in the processor. Our work shows an integrated quantum technology for qudit-based quantum computing with enhanced capacity, accuracy, and efficiency.

Conference Presentation

Citation Download Citation

Jieshan Huang, Yulin Chi, Zhanchuan Zhang, Yan Yang, Jianwei Wang, and Qihuang Gong "A programmable qudit-based quantum processor", Proc. SPIE PC12323, Quantum and Nonlinear Optics IX, PC1232306 (31 December 2022); https://doi.org/10.1117/12.2648702

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