MAQCY: Modular Atom-Array Quantum Computing with Space-Time Hybrid Multiplexing
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arXiv
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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866915629152337920 |
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| author | Byun, Andrew Lee, Chanseul Yoon, Eunsik Kim, Minhyuk Yoon, Tai Hyun |
| author_facet | Byun, Andrew Lee, Chanseul Yoon, Eunsik Kim, Minhyuk Yoon, Tai Hyun |
| contents | We present a modular atom-array quantum computing architecture with space-time hybrid multiplexing (MAQCY), a dynamic optical tweezer-based protocol for fully connected and scalable universal quantum computation. By extending the concept of globally controlled static dual-species Rydberg atom wires [1], we develop an entirely new approach using Q-Pairs, which consist of globally controlled and temporally multiplexed dual-species Rydberg blockaded atom and superatom pairs. Space-time hybrid multiplexing of Q-Pairs achieves O(N) linear scaling in the number of required physical qubits, while preserving coherence and mitigating circuit-depth limitations through in-situ atom replacement. To demonstrate MAQCY's versatility, we implement a three-qubit quantum Fourier transform using only global operations and atom transport. We also propose a concrete implementation using ytterbium isotopes, paving the way toward large-scale, fault-tolerant quantum computing. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_02940 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | MAQCY: Modular Atom-Array Quantum Computing with Space-Time Hybrid Multiplexing Byun, Andrew Lee, Chanseul Yoon, Eunsik Kim, Minhyuk Yoon, Tai Hyun Quantum Physics We present a modular atom-array quantum computing architecture with space-time hybrid multiplexing (MAQCY), a dynamic optical tweezer-based protocol for fully connected and scalable universal quantum computation. By extending the concept of globally controlled static dual-species Rydberg atom wires [1], we develop an entirely new approach using Q-Pairs, which consist of globally controlled and temporally multiplexed dual-species Rydberg blockaded atom and superatom pairs. Space-time hybrid multiplexing of Q-Pairs achieves O(N) linear scaling in the number of required physical qubits, while preserving coherence and mitigating circuit-depth limitations through in-situ atom replacement. To demonstrate MAQCY's versatility, we implement a three-qubit quantum Fourier transform using only global operations and atom transport. We also propose a concrete implementation using ytterbium isotopes, paving the way toward large-scale, fault-tolerant quantum computing. |
| title | MAQCY: Modular Atom-Array Quantum Computing with Space-Time Hybrid Multiplexing |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2510.02940 |