EPJ Quantum Technology最新文献_第3页

All-valid-state HOBO encoding for constrained combinatorial optimization on NISQ devices NISQ设备约束组合优化的全有效状态HOBO编码

IF 4.5 2区物理与天体物理

EPJ Quantum Technology Pub Date : 2026-06-23 Epub Date: 2026-09-07 DOI: 10.1140/epjqt/s40507-026-00535-6

Juncheng Wang, Takumi Kanezashi, Daisuke Tsukayama, Koki Awaya, Reo Saito, Jun-ichi Shirakashi, Tetsuo Shibuya, Hiroshi Imai

{"title":"All-valid-state HOBO encoding for constrained combinatorial optimization on NISQ devices","authors":"Juncheng Wang, Takumi Kanezashi, Daisuke Tsukayama, Koki Awaya, Reo Saito, Jun-ichi Shirakashi, Tetsuo Shibuya, Hiroshi Imai","doi":"10.1140/epjqt/s40507-026-00535-6","DOIUrl":"10.1140/epjqt/s40507-026-00535-6","url":null,"abstract":"<div><p>Continued advancements in quantum computing have stimulated growing interest in translating quantum technologies into real-world applications. Consequently, the investigation of practically motivated NP-hard problems is of significant value. This study investigates the performance of a variational quantum eigensolver (VQE) in addressing the traveling salesperson problem (TSP) through noiseless simulations representative of noisy intermediate-scale quantum (NISQ) devices using higher-order binary optimization (HOBO) encodings. We construct a HOBO Hamiltonian with an efficient binary representation and propose an all-valid-state HOBO (AVS-HOBO) scheme based on cyclic mapping that eliminates one penalty term and reuses states that would otherwise be invalid. Using TSP instances of up to 20 cities, we compare the original HOBO and AVS-HOBO encodings from multiple perspectives, including the energy convergence behavior and the approximation, tour-length, and feasibility ratios. In addition to simulations, we perform computations on real quantum hardware with different device architectures, where we not only compare the performances of different chips but also investigate the effects of different error-mitigation methods on actual quantum machines. The results indicate that AVS-HOBO encoding enhances the practical reliability of VQE on NISQ devices and improves scalability for larger TSP instances, with broader applicability to constrained quantum optimization problems.</p></div>","PeriodicalId":547,"journal":{"name":"EPJ Quantum Technology","volume":"13 1","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjqt/s40507-026-00535-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148927818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Probabilistic joint remote implementation of quantum operations 量子运算的概率联合远程实现

IF 4.5 2区物理与天体物理

EPJ Quantum Technology Pub Date : 2026-06-23 Epub Date: 2026-09-04 DOI: 10.1140/epjqt/s40507-026-00537-4

Meiyu Wang, Ziyang Wang, Bing Di, Zheng Li

{"title":"Probabilistic joint remote implementation of quantum operations","authors":"Meiyu Wang, Ziyang Wang, Bing Di, Zheng Li","doi":"10.1140/epjqt/s40507-026-00537-4","DOIUrl":"10.1140/epjqt/s40507-026-00537-4","url":null,"abstract":"<div><p>Joint remote implementation of quantum operations (JRIO) is crucial for distributed quantum computation. We propose a probabilistic JRIO scheme using a three-photon nonmaximally hyperentangled Greenberger-Horne-Zeilinger (GHZ) state, which is simultaneously entangled in the polarization and spatial-mode degrees of freedom (DOFs), as the shared quantum resource. This JRIO protocol operates on two core principles: transferring the quantum-state information of the target qubit to the senders’ joint system via polarization-DOF entanglement and applying local operations, then executing quantum operations on the receiver’s system using entanglement in the spatial-mode DOF. The construction of the proposed scheme requires weak cross-Kerr nonlinearities, X homodyne measurements, simple linear optical elements, and common single-photon detectors. This work extends the framework of the previous JRIO protocol to the scenario of a nonmaximally hyperentangled quantum channel, enriching the theoretical family of distributed quantum operation schemes.</p></div>","PeriodicalId":547,"journal":{"name":"EPJ Quantum Technology","volume":"13 1","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjqt/s40507-026-00537-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148927819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Rapid axial loading of a grating MOT with a cold-atom beam 冷原子束光栅MOT的快速轴向加载。

IF 4.5 2区物理与天体物理

EPJ Quantum Technology Pub Date : 2026-06-19 Epub Date: 2026-09-03 DOI: 10.1140/epjqt/s40507-026-00534-7

Rachel Cannon, Aidan S. Arnold, Paul F. Griffin, Erling Riis, Oliver S. Burrow

引用次数: 0

Communicating dual-use quantum technologies across science, politics, the military, and business 在科学、政治、军事和商业领域交流两用量子技术

IF 4.5 2区物理与天体物理

EPJ Quantum Technology Pub Date : 2026-06-17 Epub Date: 2026-08-26 DOI: 10.1140/epjqt/s40507-026-00533-8

Kristian H. Nielsen, Esben Rohan Christensen

{"title":"Communicating dual-use quantum technologies across science, politics, the military, and business","authors":"Kristian H. Nielsen, Esben Rohan Christensen","doi":"10.1140/epjqt/s40507-026-00533-8","DOIUrl":"10.1140/epjqt/s40507-026-00533-8","url":null,"abstract":"<div><p>Quantum technologies are increasingly framed as dual-use, raising concerns about civilian benefits alongside potential military and security applications. This paper examines how dual-use quantum technologies are communicatively constructed across four functionally differentiated domains: science, politics, the military, and business. Rather than treating dual-use as an inherent property of technology, we conceptualize it as a communicative category through which uncertainty, responsibility, and future expectations are negotiated. Drawing on Niklas Luhmann’s systems theory, we analyze a qualitative corpus of scientific publications, policy documents, military strategy reports, and business communications. We show that shared terms such as dual-use, security, and quantum advantage circulate across domains but acquire distinct meanings as they are re-embedded within domain-specific communicative codes. These translations generate both resonance and dissonance, producing structured misalignment rather than convergence. The paper contributes to our understanding of dual-use quantum technologies by reconstructing domain-specific articulations of dual-use, explaining their divergence through functional differentiation, and highlighting implications for responsibility, authority, and governance.</p></div>","PeriodicalId":547,"journal":{"name":"EPJ Quantum Technology","volume":"13 1","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjqt/s40507-026-00533-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148837691","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Asymmetric entanglement-assisted quantum error-correcting MDS codes of physical qubits (p^{s}) over (mathbb{F}_{p^{m}}) 物理量子比特的非对称纠缠辅助量子纠错MDS代码(p^{s}) over (mathbb{F}_{p^{m}})

IF 4.5 2区物理与天体物理

EPJ Quantum Technology Pub Date : 2026-06-17 Epub Date: 2026-08-26 DOI: 10.1140/epjqt/s40507-026-00503-0

Hai Q. Dinh, Bac T. Nguyen, Hiep L. Thi, Luong Tran Thi, W. Yamaha

{"title":"Asymmetric entanglement-assisted quantum error-correcting MDS codes of physical qubits (p^{s}) over (mathbb{F}_{p^{m}})","authors":"Hai Q. Dinh, Bac T. Nguyen, Hiep L. Thi, Luong Tran Thi, W. Yamaha","doi":"10.1140/epjqt/s40507-026-00503-0","DOIUrl":"10.1140/epjqt/s40507-026-00503-0","url":null,"abstract":"<div><p>In this paper, we construct entanglement-assisted quantum error-correcting codes (EAQEC codes) of physical qubits <span>(p^{s})</span> over <span>(mathbb{F}_{p^{m}})</span>. We compare our EAQEC codes with all known EAQEC codes to see that our EAQEC codes are new in the sense that their parameters are different from all the previous constructions. If we fix the physical qubits and the logical qubits of EAQEC codes, many of them have larger quantum distances than the well known EAQEC codes in the literature. Moreover, some of our EAQEC codes achieve larger quantum distances while requiring fewer or the same number of entangled bits compared with existing EAQEC codes when the numbers of physical qubits and logical qubits are fixed. We construct asymmetric entanglement-assisted quantum error-correcting (AEAQEC) MDS codes of physical qubits <span>(p^{s})</span> over <span>(mathbb{F}_{p^{m}})</span>. When the physical qubits of the AEAQEC codes is fixed, many of our AEAQEC codes have a significantly larger number of quantum distances compared to all previously constructed AEAQEC codes. We also provide a version of Singleton bound for all AEAQEC codes.</p></div>","PeriodicalId":547,"journal":{"name":"EPJ Quantum Technology","volume":"13 1","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjqt/s40507-026-00503-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148837696","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dual-use, quantum technologies, and responsible innovation: the challenges of responsible quantum in defence 军民两用、量子技术和负责任的创新：负责任的量子在国防中的挑战。

IF 4.5 2区物理与天体物理

EPJ Quantum Technology Pub Date : 2026-06-16 DOI: 10.1140/epjqt/s40507-026-00531-w

Carolyn Ten Holter, Mira Wolf-Bauwens

{"title":"Dual-use, quantum technologies, and responsible innovation: the challenges of responsible quantum in defence","authors":"Carolyn Ten Holter, Mira Wolf-Bauwens","doi":"10.1140/epjqt/s40507-026-00531-w","DOIUrl":"10.1140/epjqt/s40507-026-00531-w","url":null,"abstract":"<div><p>The development of novel technologies does not take place in a moral, economic, or geopolitical vacuum. Therefore, questions of funding, use-cases, and contexts of use will directly influence both moral and practical judgements around the ways in which these technologies are, or should be, developed and deployed. This article examines the growth of Quantum Technologies (QTs) in light of these challenges, and the ways in which they are already raising concerns with respect to questions of ‘dual-use’. The article argues that ‘dual-use’ as a category is inadequate for normative judgement as it conflates moral evaluation with a descriptive classification, and therefore misses important contextual and procedural elements. The article proposes making Responsible Innovation (RI) frameworks integral to the development of QTs in order to enable context-sensitive ethical assessment and decision-making guidance. Finally, the article proposes a way forward that engages with the principle-based concerns of those critical of military uses of QTs, while respecting the challenges posed by current geopolitical realities.</p></div>","PeriodicalId":547,"journal":{"name":"EPJ Quantum Technology","volume":"13 1","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13272261/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148275540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessment of provably secure hybrid authenticated key exchange for dual-use applications 两用应用中可证明安全的混合认证密钥交换评估

IF 4.5 2区物理与天体物理

EPJ Quantum Technology Pub Date : 2026-06-11 Epub Date: 2026-08-18 DOI: 10.1140/epjqt/s40507-026-00532-9

Simon Abelard, Juan Antonio Vieira Giestinhas, Delaram Kahrobaei, Ludovic Perret, Timothy Spiller, Christoph Striecks

引用次数: 0

Military task-technology fit and utilization of quantum technologies 量子技术的军事任务技术适配与利用

IF 4.5 2区物理与天体物理

EPJ Quantum Technology Pub Date : 2026-06-05 Epub Date: 2026-07-02 DOI: 10.1140/epjqt/s40507-026-00522-x

Magnus Ravn Skou, Benedicte Ravn Skou

{"title":"Military task-technology fit and utilization of quantum technologies","authors":"Magnus Ravn Skou, Benedicte Ravn Skou","doi":"10.1140/epjqt/s40507-026-00522-x","DOIUrl":"10.1140/epjqt/s40507-026-00522-x","url":null,"abstract":"<div><p>The recent developments of quantum technologies (QTs) have spurred growing interest for advancing applications of these technologies in many sectors including the military. Organizational and technical perspectives have been explored to shed light on implications for armed forces, however, only limited academic attention has been directed towards the connection between applications and operational environments. Consequently, this paper investigates the unique context of applying QTs to accomplish military tasks. This is examined through the theoretical model Technology-to-Performance Chain (TPC) by Goodhue and Thompson concerning task-technology fit and utilization. Firstly, two Danish national strategies and a NATO Challenge Programme are analyzed to identify similarities and differences in technology and task characteristics leading to potential fits. Secondly, the utilization aspect of the TPC model is explored by introducing a new framework that simultaneously enables a categorization of QTs according to both operational environments and contributions to task solution. In conclusion, the paper identifies potential fits between QTs and military tasks and specifies expected operational environments and task solutions of QTs. This paper thus advances the current understanding of how QTs can be applied in a military context with insights for other emerging and disruptive technologies as well as the ecosystems responsible for developing these technologies.</p></div>","PeriodicalId":547,"journal":{"name":"EPJ Quantum Technology","volume":"13 1","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjqt/s40507-026-00522-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148380398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A system design for evanescently trapping a 87Rb BEC using silicon nitride strip waveguides 一种利用氮化硅条波导瞬时捕获87Rb BEC的系统设计

IF 5.6 2区物理与天体物理

EPJ Quantum Technology Pub Date : 2026-06-05 Epub Date: 2026-06-08 DOI: 10.1140/epjqt/s40507-026-00530-x

Sam J. Harding, C. A. Weidner

引用次数: 0

Suppressing virtual magnetic field noise and enhancing spin coherence in hybrid optical pumping atomic magnetometers 抑制虚磁场噪声和增强混合光泵原子磁强计的自旋相干性

IF 4.5 2区物理与天体物理

EPJ Quantum Technology Pub Date : 2026-06-02 Epub Date: 2026-08-07 DOI: 10.1140/epjqt/s40507-026-00529-4

Faming Wang, Xiujie Fang, Yueyang Zhai, Zhuo Wang, Zihan Ling, Ping Xu, Kun Chen, Danyue Ma

{"title":"Suppressing virtual magnetic field noise and enhancing spin coherence in hybrid optical pumping atomic magnetometers","authors":"Faming Wang, Xiujie Fang, Yueyang Zhai, Zhuo Wang, Zihan Ling, Ping Xu, Kun Chen, Danyue Ma","doi":"10.1140/epjqt/s40507-026-00529-4","DOIUrl":"10.1140/epjqt/s40507-026-00529-4","url":null,"abstract":"<div><p>A hybrid optical pumping method employing a broad linewidth laser is proposed to enhance spin coherence and suppress virtual magnetic field noise in atomic magnetometers. The central frequency of broad linewidth laser is tuned to the resonance peak of the alkali-metal atoms D1 line. Its multiple frequency components suppress AC-Stark shift fluctuations caused by pumping laser frequency variations, thereby reducing virtual magnetic field noise. In addition, these components decrease the average optical absorption cross-section, improving the uniformity of atomic spin polarization, further enhancing spin coherence and extending transverse relaxation time. Experimental results show that, compared with narrow linewidth pumping, the proposed method suppresses virtual magnetic field noise by 17.95% to 34.50%, and increases the magnetometer response by 1.62% to 30.31% at 5 Hz. The average sensitivity within the frequency range of 1-20 Hz is improved to 0.158 fT/Hz<sup>1/2</sup>, representing a significant enhancement of 30.70% compared to narrow linewidth pumping.</p></div>","PeriodicalId":547,"journal":{"name":"EPJ Quantum Technology","volume":"13 1","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjqt/s40507-026-00529-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148750799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0