Quantum Information Processing最新文献_第8页

Portfolio optimization via FALQON variants: warm starting, XY mixing, and circuit depth reduction 组合优化通过FALQON变体：热启动，XY混音，和电路深度减少

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2026-07-30 DOI: 10.1007/s11128-026-05291-1

Pedro M. Prado, Rafael Simões do Carmo, Lucas A. M. Rattighieri, Luiz Gustavo Esmenard Arruda, Giovanni S. Franco, Marcos César de Oliveira, Felipe F. Fanchini

引用次数: 0

Hermitian hull of some GRS codes and new entanglement-assisted quantum MDS codes 一些GRS码的厄米壳和新的纠缠辅助量子MDS码

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2026-07-30 DOI: 10.1007/s11128-026-05297-9

Oisin Campion, Rodrigo San-José

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Weakest precondition calculus and relative completeness of satisfaction-based quantum Hoare logic 基于满足的量子霍尔逻辑的最弱前提演算和相对完备性

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2026-07-28 DOI: 10.1007/s11128-026-05296-w

Xin Sun, Xingchi Su, Xiaoning Bian, Huiwen Wu

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A dynamic group multi-party signature scheme based on extended quantum teleportation 基于扩展量子隐形传态的动态群多方签名方案

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2026-07-28 DOI: 10.1007/s11128-026-05290-2

Xin-Yu Li, Dong-Huan Jiang, Hua-Kun Wang, Yu-Guang Yang, Guang-Bao Xu

{"title":"A dynamic group multi-party signature scheme based on extended quantum teleportation","authors":"Xin-Yu Li, Dong-Huan Jiang, Hua-Kun Wang, Yu-Guang Yang, Guang-Bao Xu","doi":"10.1007/s11128-026-05290-2","DOIUrl":"10.1007/s11128-026-05290-2","url":null,"abstract":"<div><p>With the development of quantum computing, classical signature techniques are facing growing security challenges. In this paper, we propose a dynamic group multi-party quantum signature scheme based on extended quantum teleportation. Our scheme, which uses Greenberger–Horne–Zeilinger (GHZ) states to transmit information, allows for the addition or removal of participants at will. It realizes the dynamic management of group signature permissions and identity authentication by virtue of the state transmission of extended quantum teleportation. The signature process relies on the entanglement characteristics of GHZ states to accomplish the secure transmission and collaborative verification of information, and achieves a good balance between signature efficiency and security. Consequently, it is well suited for scenarios requiring collaborative authorization, such as decentralized systems and documents that require signatures from multiple departments. The security analysis demonstrates that the scheme is unforgeable, undeniable, and secure against interception-forgery attacks. We further validated the feasibility of our scheme through simulation experiments on Qiskit.</p></div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":"25 8","pages":""},"PeriodicalIF":2.2,"publicationDate":"2026-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148614566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Polarization Bell state analysis using orbital angular momentum entanglement in linear optics 线性光学中基于轨道角动量纠缠的偏振贝尔态分析

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2026-07-27 DOI: 10.1007/s11128-026-05265-3

Zi-Long Yang, Shi-Wen He, Zheng Liu, Si-Tong Jin, Xiao-Ming Xiu, Lin-Cheng Wang, Chong Li

引用次数: 0

Theory and experimental demonstration of Wigner tomography of unknown unitary quantum gates 未知单量子门的维格纳层析成像理论与实验证明

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2026-07-27 DOI: 10.1007/s11128-026-05269-z

Amit Devra, Léo Van Damme, Frederik vom Ende, Emanuel Malvetti, Steffen J. Glaser

{"title":"Theory and experimental demonstration of Wigner tomography of unknown unitary quantum gates","authors":"Amit Devra, Léo Van Damme, Frederik vom Ende, Emanuel Malvetti, Steffen J. Glaser","doi":"10.1007/s11128-026-05269-z","DOIUrl":"10.1007/s11128-026-05269-z","url":null,"abstract":"<div><p>We investigate the tomography of unknown unitary quantum processes within the framework of a finite-dimensional Wigner-type representation. This representation provides a rich visualization of quantum operators by depicting them as shapes assembled as a linear combination of spherical harmonics. These shapes can be experimentally tomographed using a scanning-based phase-space tomography approach. However, so far, this approach was limited to <i>known</i> target processes and only provided information about the controlled version of the process rather than the process itself. To overcome this limitation, we introduce a general protocol to extend Wigner tomography to <i>unknown</i> unitary processes. This new method enables experimental tomography by combining a set of experiments with classical post-processing algorithms introduced herein to reconstruct the unknown process. We also demonstrate the tomography approach experimentally on IBM quantum devices and present the specific calibration circuits required for quantifying undesired errors in the measurement outcomes of these demonstrations.\u0000</p></div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":"25 8","pages":""},"PeriodicalIF":2.2,"publicationDate":"2026-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11128-026-05269-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148614554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

((1,1-2v))-constacyclic codes over (mathbb {F}_qtimes (mathbb {F}_q+vmathbb {F}_q)) and their applications to QEC codes ((1,1-2v))- (mathbb {F}_qtimes (mathbb {F}_q+vmathbb {F}_q))上的恒循环码及其在QEC码中的应用

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2026-07-27 DOI: 10.1007/s11128-026-05298-8

Xiusheng Liu, Jie Liu

引用次数: 0

Construction of asymmetric quantum codes via two subsets 通过两个子集构造非对称量子码

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2026-07-27 DOI: 10.1007/s11128-026-05303-0

Guohui Wang, Yucheng Chen, Chunming Tang

引用次数: 0

Optimising Trotter-Suzuki simulations of Markovian open quantum systems via classical search 通过经典搜索优化马尔可夫开放量子系统的Trotter-Suzuki模拟

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2026-07-24 DOI: 10.1007/s11128-026-05267-1

S. M. Pillay, I. J. David, I. Sinayskiy, F. Petruccione

{"title":"Optimising Trotter-Suzuki simulations of Markovian open quantum systems via classical search","authors":"S. M. Pillay, I. J. David, I. Sinayskiy, F. Petruccione","doi":"10.1007/s11128-026-05267-1","DOIUrl":"10.1007/s11128-026-05267-1","url":null,"abstract":"<div><p>Simulating an open quantum system on a digital quantum computer often involves the use of Trotter-Suzuki (TS) Product Formulas (PF) to approximate the system’s time evolution. Precise estimates for the required number of Trotter steps (and hence the overall gate count) can be crucial for minimising the computational cost of these methods. Building on established theoretical guarantees, we derive analytic bounds for the first- and second-order deterministic and randomised TS-PF, directly relating the number of Trotter steps to the model parameters, evolution time and precision. These bounds enable concrete resource estimation for each method. We then present a computationally efficient classical algorithm that uses diamond norm estimates of individual Liouvillian terms and a binary search to significantly reduce the Trotter steps required for a target precision. Our numerical results on two prototypical models—an XX-Spin Chain with boundary driving and local dephasing, and a Transverse Field Ising Model—show that the theoretical (analytic) bounds are often overly conservative, whereas the empirical (optimised) bounds yield a significantly smaller number of Trotter steps for the same precision. Among the methods investigated, the second-order randomised TS-PF typically achieves the lowest resource demands, especially for larger systems. These findings emphasise the significance of empirical bounding strategies in achieving more resource-efficient simulations of Markovian open quantum systems.\u0000</p></div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":"25 8","pages":""},"PeriodicalIF":2.2,"publicationDate":"2026-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11128-026-05267-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148613990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Coherence scaling in quantum communication protocols 量子通信协议中的相干缩放

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2026-07-23 DOI: 10.1007/s11128-026-05279-x

Pedro Henrique Alvarez, Marcos César de Oliveira

{"title":"Coherence scaling in quantum communication protocols","authors":"Pedro Henrique Alvarez, Marcos César de Oliveira","doi":"10.1007/s11128-026-05279-x","DOIUrl":"10.1007/s11128-026-05279-x","url":null,"abstract":"<div><p>We investigate how quantum coherence scales and is redistributed in quantum communication protocols, using superdense coding and quantum teleportation as paradigmatic case studies. Employing the relative entropy of coherence as a stage-resolved, circuit-level resource measure, we show that multipartite resource states relevant to generalized superdense coding can enable scalable communication while exhibiting only logarithmic or even constant coherence growth, depending on their entanglement structure. In contrast, within the standard teleportation circuit and with coherence evaluated in the computational basis, teleportation displays a protocol-induced coherence contribution that grows linearly with the number of teleported qubits. Through a stage-resolved analysis, we separate coherence generated by the teleportation circuit from message-dependent contributions and identify, at the maximal-coherence pre-measurement stage, a two-bit coherence offset per teleported qubit for computational-basis incoherent inputs, with an additional term given by the input-message coherence in the general case. We further show explicitly that this extensive intermediate coherence generation is fully consistent with information-theoretic bounds, including the Holevo limit, and does not correspond to an increase in accessible classical information.\u0000</p></div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":"25 8","pages":""},"PeriodicalIF":2.2,"publicationDate":"2026-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11128-026-05279-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148613999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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