Shinichi Sunami, Shiro Tamiya, Ryotaro Inoue, Hayata Yamasaki, Akihisa Goban
{"title":"中性原子量子位的可扩展网络:基于纳米纤维的多处理器容错量子计算机方法","authors":"Shinichi Sunami, Shiro Tamiya, Ryotaro Inoue, Hayata Yamasaki, Akihisa Goban","doi":"arxiv-2407.11111","DOIUrl":null,"url":null,"abstract":"Neutral atoms are among the leading platforms toward realizing fault-tolerant\nquantum computation (FTQC). However, scaling up a single neutral-atom device\nbeyond $\\sim 10^4$ atoms to meet the demands of FTQC for practical applications\nremains a challenge. To overcome this challenge, we clarify the criteria and\ntechnological requirements for further scaling based on multiple neutral atom\nquantum processing units (QPUs) connected through photonic networking links.\nOur quantitative analysis shows that nanofiber optical cavities have the\npotential as an efficient atom-photon interface to enable fast entanglement\ngeneration between atoms in distinct neutral-atom modules, allowing multiple\nneutral-atom QPUs to operate cooperatively without sacrificing computational\nspeed. Using state-of-the-art millimeter-scale nanofiber cavities with the\nfinesse of thousands, over a hundred atoms can be coupled to the cavity mode\nwith an optical tweezer array, with expected single-atom cooperativity\nexceeding 100 for telecom-band transition of ytterbium atoms. This enables\nefficient time-multiplexed entanglement generation with a predicted Bell pair\ngeneration rate of 100 kHz while maintaining a small footprint for channel\nmultiplexing. These proposals and results indicate a promising pathway for\nbuilding large-scale multiprocessor fault-tolerant quantum computers using\nneutral atoms, nanofiber optical cavities, and fiber-optic networks.","PeriodicalId":501039,"journal":{"name":"arXiv - PHYS - Atomic Physics","volume":"23 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Scalable Networking of Neutral-Atom Qubits: Nanofiber-Based Approach for Multiprocessor Fault-Tolerant Quantum Computer\",\"authors\":\"Shinichi Sunami, Shiro Tamiya, Ryotaro Inoue, Hayata Yamasaki, Akihisa Goban\",\"doi\":\"arxiv-2407.11111\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Neutral atoms are among the leading platforms toward realizing fault-tolerant\\nquantum computation (FTQC). However, scaling up a single neutral-atom device\\nbeyond $\\\\sim 10^4$ atoms to meet the demands of FTQC for practical applications\\nremains a challenge. To overcome this challenge, we clarify the criteria and\\ntechnological requirements for further scaling based on multiple neutral atom\\nquantum processing units (QPUs) connected through photonic networking links.\\nOur quantitative analysis shows that nanofiber optical cavities have the\\npotential as an efficient atom-photon interface to enable fast entanglement\\ngeneration between atoms in distinct neutral-atom modules, allowing multiple\\nneutral-atom QPUs to operate cooperatively without sacrificing computational\\nspeed. Using state-of-the-art millimeter-scale nanofiber cavities with the\\nfinesse of thousands, over a hundred atoms can be coupled to the cavity mode\\nwith an optical tweezer array, with expected single-atom cooperativity\\nexceeding 100 for telecom-band transition of ytterbium atoms. This enables\\nefficient time-multiplexed entanglement generation with a predicted Bell pair\\ngeneration rate of 100 kHz while maintaining a small footprint for channel\\nmultiplexing. These proposals and results indicate a promising pathway for\\nbuilding large-scale multiprocessor fault-tolerant quantum computers using\\nneutral atoms, nanofiber optical cavities, and fiber-optic networks.\",\"PeriodicalId\":501039,\"journal\":{\"name\":\"arXiv - PHYS - Atomic Physics\",\"volume\":\"23 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-07-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"arXiv - PHYS - Atomic Physics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/arxiv-2407.11111\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv - PHYS - Atomic Physics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2407.11111","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Scalable Networking of Neutral-Atom Qubits: Nanofiber-Based Approach for Multiprocessor Fault-Tolerant Quantum Computer
Neutral atoms are among the leading platforms toward realizing fault-tolerant
quantum computation (FTQC). However, scaling up a single neutral-atom device
beyond $\sim 10^4$ atoms to meet the demands of FTQC for practical applications
remains a challenge. To overcome this challenge, we clarify the criteria and
technological requirements for further scaling based on multiple neutral atom
quantum processing units (QPUs) connected through photonic networking links.
Our quantitative analysis shows that nanofiber optical cavities have the
potential as an efficient atom-photon interface to enable fast entanglement
generation between atoms in distinct neutral-atom modules, allowing multiple
neutral-atom QPUs to operate cooperatively without sacrificing computational
speed. Using state-of-the-art millimeter-scale nanofiber cavities with the
finesse of thousands, over a hundred atoms can be coupled to the cavity mode
with an optical tweezer array, with expected single-atom cooperativity
exceeding 100 for telecom-band transition of ytterbium atoms. This enables
efficient time-multiplexed entanglement generation with a predicted Bell pair
generation rate of 100 kHz while maintaining a small footprint for channel
multiplexing. These proposals and results indicate a promising pathway for
building large-scale multiprocessor fault-tolerant quantum computers using
neutral atoms, nanofiber optical cavities, and fiber-optic networks.