TITAN: A Distributed Large-Scale Trapped-Ion NISQ Computer
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arXiv
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| Autori principali: | , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866916129570553856 |
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| author | Chu, Cheng Fu, Zhenxiao Xu, Yilun Huang, Gang Muller, Hausi Chen, Fan Jiang, Lei |
| author_facet | Chu, Cheng Fu, Zhenxiao Xu, Yilun Huang, Gang Muller, Hausi Chen, Fan Jiang, Lei |
| contents | Trapped-Ion (TI) technology offers potential breakthroughs for Noisy Intermediate Scale Quantum (NISQ) computing. TI qubits offer extended coherence times and high gate fidelity, making them appealing for large-scale NISQ computers. Constructing such computers demands a distributed architecture connecting Quantum Charge Coupled Devices (QCCDs) via quantum matter-links and photonic switches. However, current distributed TI NISQ computers face hardware and system challenges. Entangling qubits across a photonic switch introduces significant latency, while existing compilers generate suboptimal mappings due to their unawareness of the interconnection topology. In this paper, we introduce TITAN, a large-scale distributed TI NISQ computer, which employs an innovative photonic interconnection design to reduce entanglement latency and an advanced partitioning and mapping algorithm to optimize matter-link communications. Our evaluations show that TITAN greatly enhances quantum application performance by 56.6% and fidelity by 19.7% compared to existing systems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2402_11021 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | TITAN: A Distributed Large-Scale Trapped-Ion NISQ Computer Chu, Cheng Fu, Zhenxiao Xu, Yilun Huang, Gang Muller, Hausi Chen, Fan Jiang, Lei Quantum Physics Emerging Technologies Trapped-Ion (TI) technology offers potential breakthroughs for Noisy Intermediate Scale Quantum (NISQ) computing. TI qubits offer extended coherence times and high gate fidelity, making them appealing for large-scale NISQ computers. Constructing such computers demands a distributed architecture connecting Quantum Charge Coupled Devices (QCCDs) via quantum matter-links and photonic switches. However, current distributed TI NISQ computers face hardware and system challenges. Entangling qubits across a photonic switch introduces significant latency, while existing compilers generate suboptimal mappings due to their unawareness of the interconnection topology. In this paper, we introduce TITAN, a large-scale distributed TI NISQ computer, which employs an innovative photonic interconnection design to reduce entanglement latency and an advanced partitioning and mapping algorithm to optimize matter-link communications. Our evaluations show that TITAN greatly enhances quantum application performance by 56.6% and fidelity by 19.7% compared to existing systems. |
| title | TITAN: A Distributed Large-Scale Trapped-Ion NISQ Computer |
| topic | Quantum Physics Emerging Technologies |
| url | https://arxiv.org/abs/2402.11021 |