发布求助
文献互助 智能选刊 最新文献

npj Quantum Information最新文献

筛选
英文 中文
Photonic qubit gates via 1D scattering from an array of two-level emitters 光子量子比特门通过一维散射从阵列的两能级发射
IF 7.6 1区 物理与天体物理
npj Quantum Information Pub Date : 2026-07-17 DOI: 10.1038/s41534-026-01324-w
Evangelos Varvelis, Joachim Ankerhold
{"title":"Photonic qubit gates via 1D scattering from an array of two-level emitters","authors":"Evangelos Varvelis, Joachim Ankerhold","doi":"10.1038/s41534-026-01324-w","DOIUrl":"https://doi.org/10.1038/s41534-026-01324-w","url":null,"abstract":"Photonic quantum computing offers a promising platform for quantum information processing, benefiting from the long coherence times of photons and their ease of manipulation. This paper presents a scheme for implementing a deterministic phase gate for dual-rail number encoded photonic qubits, leveraging a standard 1D waveguide coupled to an array of two-level emitters (TLE). Using a transfer matrix approach, we develop a protocol for deterministic phase gate operation, demonstrating its robustness against non-waveguide mode coupling and disorder. Finally, we relax the idealized assumption of monochromatic light, considering finite-bandwidth pulses. Despite these realistic considerations, our results indicate high fidelity for the proposed phase gate protocol. Finally we will discuss two qubit operations.","PeriodicalId":19212,"journal":{"name":"npj Quantum Information","volume":"34 1","pages":""},"PeriodicalIF":7.6,"publicationDate":"2026-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148459334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Generating logical magic states with the aid of non-Abelian topological order 利用非阿贝尔拓扑顺序生成逻辑魔态
IF 7.6 1区 物理与天体物理
npj Quantum Information Pub Date : 2026-07-16 DOI: 10.1038/s41534-026-01315-x
Sheng-Jie Huang, Yanzhu Chen
{"title":"Generating logical magic states with the aid of non-Abelian topological order","authors":"Sheng-Jie Huang, Yanzhu Chen","doi":"10.1038/s41534-026-01315-x","DOIUrl":"https://doi.org/10.1038/s41534-026-01315-x","url":null,"abstract":"","PeriodicalId":19212,"journal":{"name":"npj Quantum Information","volume":"40 1","pages":""},"PeriodicalIF":7.6,"publicationDate":"2026-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148459326","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Self-dual bivariate bicycle codes with transversal Clifford gates 具有横向Clifford门的自对偶二元自行车码
IF 7.6 1区 物理与天体物理
npj Quantum Information Pub Date : 2026-07-15 DOI: 10.1038/s41534-026-01303-1
Zijian Liang, Yu-An Chen
{"title":"Self-dual bivariate bicycle codes with transversal Clifford gates","authors":"Zijian Liang, Yu-An Chen","doi":"10.1038/s41534-026-01303-1","DOIUrl":"https://doi.org/10.1038/s41534-026-01303-1","url":null,"abstract":"","PeriodicalId":19212,"journal":{"name":"npj Quantum Information","volume":"253 1","pages":""},"PeriodicalIF":7.6,"publicationDate":"2026-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148459716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Variational Gibbs state preparation on trapped-ion devices 捕获离子器件的变分吉布斯态制备
IF 7.6 1区 物理与天体物理
npj Quantum Information Pub Date : 2026-07-11 DOI: 10.1038/s41534-026-01318-8
Reece Robertson, Mirko Consiglio, Josey Stevens, Emery Doucet, Tony J. G. Apollaro, Sebastian Deffner
{"title":"Variational Gibbs state preparation on trapped-ion devices","authors":"Reece Robertson, Mirko Consiglio, Josey Stevens, Emery Doucet, Tony J. G. Apollaro, Sebastian Deffner","doi":"10.1038/s41534-026-01318-8","DOIUrl":"https://doi.org/10.1038/s41534-026-01318-8","url":null,"abstract":"","PeriodicalId":19212,"journal":{"name":"npj Quantum Information","volume":"31 1","pages":""},"PeriodicalIF":7.6,"publicationDate":"2026-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148432140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Erbium-doped fiber quantum memory for chip-integrated quantum-dot single photons at 980 nm 980 nm芯片集成量子点单光子掺铒光纤量子存储器
IF 7.6 1区 物理与天体物理
npj Quantum Information Pub Date : 2026-07-11 DOI: 10.1038/s41534-026-01316-w
Nasser Gohari Kamel, Arsalan Mansourzadeh, Ujjwal Gautam, Vinaya Kumar Kavatamane, Ashutosh Singh, Edith Yeung, David B. Northeast, Paul E. Barclay, Philip J. Poole, Dan Dalacu, Daniel Oblak
{"title":"Erbium-doped fiber quantum memory for chip-integrated quantum-dot single photons at 980 nm","authors":"Nasser Gohari Kamel, Arsalan Mansourzadeh, Ujjwal Gautam, Vinaya Kumar Kavatamane, Ashutosh Singh, Edith Yeung, David B. Northeast, Paul E. Barclay, Philip J. Poole, Dan Dalacu, Daniel Oblak","doi":"10.1038/s41534-026-01316-w","DOIUrl":"https://doi.org/10.1038/s41534-026-01316-w","url":null,"abstract":"","PeriodicalId":19212,"journal":{"name":"npj Quantum Information","volume":"31 1","pages":""},"PeriodicalIF":7.6,"publicationDate":"2026-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148432138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Adiabatic preparation of thermal states and entropy-noise relation on noisy quantum computers 噪声量子计算机上热态的绝热制备及熵噪关系
IF 7.6 1区 物理与天体物理
npj Quantum Information Pub Date : 2026-07-10 DOI: 10.1038/s41534-026-01320-0
Etienne Granet, Henrik Dreyer
{"title":"Adiabatic preparation of thermal states and entropy-noise relation on noisy quantum computers","authors":"Etienne Granet, Henrik Dreyer","doi":"10.1038/s41534-026-01320-0","DOIUrl":"https://doi.org/10.1038/s41534-026-01320-0","url":null,"abstract":"","PeriodicalId":19212,"journal":{"name":"npj Quantum Information","volume":"40 3 1","pages":""},"PeriodicalIF":7.6,"publicationDate":"2026-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148432139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A resource- and computationally-efficient protocol for multipartite entanglement distribution in Bell-pair networks 钟对网络中多部纠缠分布的资源和计算效率协议
IF 7.6 1区 物理与天体物理
npj Quantum Information Pub Date : 2026-07-08 DOI: 10.1038/s41534-026-01294-z
S. Siddardha Chelluri, Sumeet Khatri, Peter van Loock
{"title":"A resource- and computationally-efficient protocol for multipartite entanglement distribution in Bell-pair networks","authors":"S. Siddardha Chelluri, Sumeet Khatri, Peter van Loock","doi":"10.1038/s41534-026-01294-z","DOIUrl":"https://doi.org/10.1038/s41534-026-01294-z","url":null,"abstract":"Multipartite entangled states, such as Greenberger–Horne–Zeilinger (GHZ) states, are important resources in multiparty quantum networking tasks. We consider protocols for generating such states from networks of Bell pairs and local operations and classical communication. We present a computationally-efficient protocol for generating GHZ states that is also efficient with respect to the number of consumed Bell pairs, (local) gates, and Bell-pair sources. Our protocol: (1) requires O(N) gates in a network with N nodes, independent of the network topology; (2) has time complexity O(N2), avoiding the Steiner tree and any other computationally-hard problem; (3) maintains a near-optimal number of consumed Bell pairs. Numerically, our protocol outperforms those based on (approximate) Steiner trees with respect to the number of gates and Bell-pair sources. We prove that the minimal Bell-pair source cost is given by solving the graph-theoretic dominating set problem, and we demonstrate numerically that our protocol is nearly optimal for this quantity. Finally, we analytically characterize the impact of noisy Bell pairs and gates on the fidelity of the distributed GHZ states.","PeriodicalId":19212,"journal":{"name":"npj Quantum Information","volume":"8 1","pages":""},"PeriodicalIF":7.6,"publicationDate":"2026-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148409160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Universal nested quantum switch 通用嵌套量子开关
IF 7.6 1区 物理与天体物理
npj Quantum Information Pub Date : 2026-07-07 DOI: 10.1038/s41534-026-01317-9
Jorge Miguel-Ramiro, Maria Flors Mor-Ruiz, Wolfgang Dür
{"title":"Universal nested quantum switch","authors":"Jorge Miguel-Ramiro, Maria Flors Mor-Ruiz, Wolfgang Dür","doi":"10.1038/s41534-026-01317-9","DOIUrl":"https://doi.org/10.1038/s41534-026-01317-9","url":null,"abstract":"The quantum switch is a basic network primitive that allows one to connect multiple nodes in a quantum network via a central node. We show that the same functionality can be achieved with a different geometry that does not rely on a powerful and large central unit, but instead utilizes evenly distributed resources. This approach is resilient against node failures. We provide a nested construction with logarithmically many qubits per node and a total of (O(nlog n)) Bell pairs, in contrast to other distributed approaches based on pre-shared entanglement that scale as O(n2). The construction achieves fully flexible pairwise connectivity, where the shared resource state can be locally transformed into n/2 arbitrarily distributed Bell states. We also present a graph state variant with just one qubit per node, which allows one to generate (O(n/{log }^{2}n)) Bell pairs.","PeriodicalId":19212,"journal":{"name":"npj Quantum Information","volume":"35 1","pages":""},"PeriodicalIF":7.6,"publicationDate":"2026-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148409197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Resource-efficient simulations of particle scattering on a digital quantum computer 数字量子计算机上粒子散射的资源效率模拟
IF 7.6 1区 物理与天体物理
npj Quantum Information Pub Date : 2026-07-06 DOI: 10.1038/s41534-026-01311-1
Yahui Chai, Joe Gibbs, Vincent R. Pascuzzi, Zoë Holmes, Stefan Kühn, Francesco Tacchino, Ivano Tavernelli
{"title":"Resource-efficient simulations of particle scattering on a digital quantum computer","authors":"Yahui Chai, Joe Gibbs, Vincent R. Pascuzzi, Zoë Holmes, Stefan Kühn, Francesco Tacchino, Ivano Tavernelli","doi":"10.1038/s41534-026-01311-1","DOIUrl":"https://doi.org/10.1038/s41534-026-01311-1","url":null,"abstract":"We develop and demonstrate methods for simulating the scattering of particle wave packets in the interacting Thirring model on digital quantum computers, with hardware implementations on up to 80 qubits. We identify low-entanglement time slices of the scattering dynamics and exploit their efficient representation by tensor networks. Circuit compression based on matrix product state techniques yields on average a reduction by a factor of 3.2 in circuit depth compared to conventional approaches, allowing longer evolution times to be evaluated with higher fidelity on contemporary quantum processors. Utilizing zero-noise extrapolation in combination with Pauli twirling, on quantum hardware we accurately simulate the full scattering dynamics on 40 qubits, and further demonstrate the tensor networks compressed state preparation on 80 qubits.","PeriodicalId":19212,"journal":{"name":"npj Quantum Information","volume":"41 1","pages":""},"PeriodicalIF":7.6,"publicationDate":"2026-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148409195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Quantum state design and emergent confinement mechanism in measured tensor network states 量子态设计与被测张量网络态的紧急约束机制
IF 7.6 1区 物理与天体物理
npj Quantum Information Pub Date : 2026-07-04 DOI: 10.1038/s41534-026-01298-9
Guglielmo Lami, Andrea De Luca, Xhek Turkeshi, Jacopo De Nardis
{"title":"Quantum state design and emergent confinement mechanism in measured tensor network states","authors":"Guglielmo Lami, Andrea De Luca, Xhek Turkeshi, Jacopo De Nardis","doi":"10.1038/s41534-026-01298-9","DOIUrl":"https://doi.org/10.1038/s41534-026-01298-9","url":null,"abstract":"Randomness is a fundamental aspect of quantum mechanics, arising from the measurement process that collapses superpositions into definite outcomes according to Born’s rule. Generating large-scale random quantum states is crucial for quantum computing and many-body physics, yet it remains a key challenge. We present a practical method based on local measurements of random Tensor Networks, focusing on random Matrix Product States (MPS) generated by two distinct quantum circuit architectures, both feasible on near-term devices. We certify the emergent quantum randomness using the frame potential and establish a mapping between its behavior and the statistical mechanics of a domain wall particle model. In both architectures, the effect of quantum measurements induces a nontrivial confinement mechanism, where domain walls are either trapped by an external potential or bound in pairs to form meson-like excitations. Our results, supported by both exact analytical calculations and numerical simulations, suggest that confinement is a general mechanism underlying random state generation in broader settings with local measurements, including quantum circuits and chaotic dynamics.","PeriodicalId":19212,"journal":{"name":"npj Quantum Information","volume":"365 1","pages":""},"PeriodicalIF":7.6,"publicationDate":"2026-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148385802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信
小红书