Quantum Information Processing最新文献_第3页

SymLQA: topology-aware local quantum annealing for planar face-flux HUBO problems 平面面通量HUBO问题的拓扑感知局部量子退火

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2026-09-28 DOI: 10.1007/s11128-026-05345-4

Wenjie Sun, Zhigang Wang, Jiaqi Hu, Lianhui Yu, Geng Chen, Liyuan Wang, Hailing Liu, Xiaoyu Li

{"title":"SymLQA: topology-aware local quantum annealing for planar face-flux HUBO problems","authors":"Wenjie Sun, Zhigang Wang, Jiaqi Hu, Lianhui Yu, Geng Chen, Liyuan Wang, Hailing Liu, Xiaoyu Li","doi":"10.1007/s11128-026-05345-4","DOIUrl":"10.1007/s11128-026-05345-4","url":null,"abstract":"<div>Planar face-flux optimization produces compact higher-order unconstrained binary optimization (HUBO) models, but direct Local Quantum Annealing (LQA) inherits polynomially suppressed gradients from products of edge variables. We introduce SymLQA, a topology-aware classical reformulation and solver pipeline for this problem class. A rotation system and half-edge traversal extract the bounded faces of an embedded planar graph. Their boundary products define classical face-flux variables, converting an edge-spin HUBO with face fields and face-flux interactions into a sparse one- and two-body Ising objective without auxiliary variables. For connected open planar embeddings, a GF(2) reconstruction maps every dual assignment back to edge spins with identical objective value, so the primal and dual minima coincide. We evaluate SymLQA against momentum-based native LQA, gauged LQA, and simulated annealing on independently generated certified frustrated-loop instances. SymLQA reaches the known ground state in all tested runs on regular grids up to (32times 32) and on irregular planar grids, while the baseline success probabilities decrease rapidly with size. At (12times 12), its batch TTS99 is 0.137 s, compared with 22.35 s for native LQA and 8.85 s for primal simulated annealing. It also maintains unit success probability across four independently sampled coupling regimes. The topology implementation satisfies Euler’s identity on every tested embedding and extracts irregular faces of order up to 16.</div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":"25 10","pages":""},"PeriodicalIF":2.2,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149133049","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

Quantum algorithms for computing maximal quantum f-divergence and Kubo–Ando means 计算最大量子f散度和Kubo-Ando均值的量子算法

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2026-09-28 DOI: 10.1007/s11128-026-05309-8

Trung Hoa Dinh, Nhat A. Nghiem

引用次数: 0

Quantum private query with identity authentication for multi-type users 多类型用户身份认证的量子私有查询

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2026-09-28 DOI: 10.1007/s11128-026-05352-5

Jia Hao, Yu-Guang Yang, Guang-Bao Xu, Dong-Huan Jiang, Shang Gao, Yi-Hua Zhou, Wei-Min Shi

引用次数: 0

Finite-resolution entanglement depth of W states: exact trace distance to the mixed k-producible hierarchy W态的有限分辨率纠缠深度：到混合k可生产层次的精确跟踪距离

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2026-09-28 DOI: 10.1007/s11128-026-05353-4

Wenlong Sun, Xinying Shao, Yuanfeng Jin

{"title":"Finite-resolution entanglement depth of W states: exact trace distance to the mixed k-producible hierarchy","authors":"Wenlong Sun, Xinying Shao, Yuanfeng Jin","doi":"10.1007/s11128-026-05353-4","DOIUrl":"10.1007/s11128-026-05353-4","url":null,"abstract":"<div>Entanglement depth is conventionally defined by exact membership in the mixed (k)-producible hierarchy. At finite resolution, the corresponding metric question is which lower-depth mixed states remain compatible with a target within a prescribed trace-distance tolerance. For the (N)-qubit (W) state, we determine the exact trace distance from (rho _W) to each set of mixed (k)-producible states. We first reduce the pure-state optimization to the product overlap of a generalized (W) state. A local-exchange argument then shows that the maximal-block partition is optimal among all admissible block partitions. Finally, a convex-twirling construction converts the pure-overlap optimum into the exact distance to the full mixed hierarchy. The result separates two metric scales: The nearest pure lower-depth comparator lies at distance (sqrt{1-G}), whereas the nearest mixed lower-depth state lies at distance (1-G), where (G) is the optimal squared product overlap. In the high-resolution regime, (w_varepsilon (rho _W)=lceil (1-varepsilon )Nrceil ) for (0le varepsilon le 1/2). For arbitrary nonuniform generalized (W) targets, we also obtain the exact best pure (k)-producible overlap and two-sided trace-distance bounds, thereby isolating the role of permutation symmetry in the exact mixed-state law. Here (w_varepsilon ) is a compatibility threshold, not a new entanglement monotone. Thus, (W) states provide an exactly solvable reference case for finite-resolution multipartite entanglement depth.</div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":"25 10","pages":""},"PeriodicalIF":2.2,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149133047","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

Gate teleportation using noisy gates 使用噪声门传送门

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2026-09-24 DOI: 10.1007/s11128-026-05342-7

Imama Tul Birrah Khan, Muhammad Faryad

引用次数: 0

Measurement-device-independent quantum secure direct communication based on decoy states and polarization–spatial hyperentanglement 基于诱饵态和极化空间超纠缠的独立于测量设备的量子安全直接通信

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2026-09-23 DOI: 10.1007/s11128-026-05340-9

Huayao Zhang, Rigui Zhou

{"title":"Measurement-device-independent quantum secure direct communication based on decoy states and polarization–spatial hyperentanglement","authors":"Huayao Zhang, Rigui Zhou","doi":"10.1007/s11128-026-05340-9","DOIUrl":"10.1007/s11128-026-05340-9","url":null,"abstract":"<div>Quantum secure direct communication (QSDC) can directly transmit confidential messages without pre-distributing secret keys. In practical applications, non-ideal light sources naturally contain multiphoton components, which can enable photon number splitting and quantum storage attacks and therefore hinder secure deployment. Existing measurement-device-independent (MDI) QSDC protocols are mostly developed under idealized source assumptions and do not explicitly certify the confidential contribution of practical single-pair emissions. This paper proposes an MDI-QSDC protocol based on active three-intensity decoy states and polarization–spatial hyperentanglement. The protocol directly bounds the accepted two-single-pair contribution from complete two-round statistics, assigns no positive confidential contribution to uncertified multipair events, and uses private Pauli masking together with a stochastic pre-transmission encoder under the stated collective attack model. Polarization–spatial hyperentangled encoding provides a four-bit alphabet for each exact label HBSA event, while the MDI architecture removes the need to trust the measurement device. Under the declared architecture-aware benchmark, the proposed protocol exhibits a higher secrecy rate lower bound than three reconstructed decoy-state QSDC references in the low-loss regime. This numerical advantage is conditional on the stated source, HBSA module, memory, asymptotic decoy state, and collective Pauli assumptions and is not claimed as a universal fourfold improvement.</div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":"25 10","pages":""},"PeriodicalIF":2.2,"publicationDate":"2026-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149034819","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

A reduction scheme for general-order Ising-like Hamiltonians in quantum heuristic solvers 量子启发式解算器中一般阶类伊辛哈密顿算子的约简方案

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2026-09-19 DOI: 10.1007/s11128-026-05339-2

Chengsi Mao, Pavel Mosharev, Yao Wang, Man-Hong Yung

引用次数: 0

Extremal Magic States from Symmetric Lattices 对称格的极值魔幻态

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2026-09-17 DOI: 10.1007/s11128-026-05337-4

Misaki Ohta, Kazuki Sakurai

引用次数: 0

Verifiable dynamic quantum secure multi-party multiplication protocol based on homomorphic encryption 基于同态加密的可验证动态量子安全多方倍增协议

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2026-09-17 DOI: 10.1007/s11128-026-05347-2

Fulin Li, Rongpei Li, Yixin Sun, Shixin Zhu

引用次数: 0

Embedding-aware noise modeling of quantum annealing 量子退火的嵌入感知噪声建模

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2026-09-16 DOI: 10.1007/s11128-026-05293-z

Seon-Geun Jeong, Dinh Cong Mai, Dae-Il Noh, Quoc-Viet Pham, Won-Joo Hwang

{"title":"Embedding-aware noise modeling of quantum annealing","authors":"Seon-Geun Jeong, Dinh Cong Mai, Dae-Il Noh, Quoc-Viet Pham, Won-Joo Hwang","doi":"10.1007/s11128-026-05293-z","DOIUrl":"10.1007/s11128-026-05293-z","url":null,"abstract":"<div>Quantum annealing provides a practical realization of adiabatic quantum computation and has emerged as a promising approach for solving large-scale combinatorial optimization problems. However, current devices remain constrained by sparse hardware connectivity, which requires embedding logical variables into chains of physical qubits. This embedding overhead limits scalability and reduces reliability as longer chains are more prone to noise-induced errors. In this work, we develop an embedding-aware baseline noise framework that connects chain-length growth to accumulated integrated-control-error variance, chain break probability (CBP), chain break fraction (CBF), and chain-strength scaling. We distinguish a moment-level uncorrelated ICE baseline, which yields a linear variance law, from a Gaussian closure that gives a closed-form erfc approximation for CBP. Experiments on the D-Wave Advantage2 Zephyr processor show that the calibrated baseline model captures the dominant growth trend of CBF with embedding size. However, the empirical critical chain-strength exponent ranges from (alpha =0.805) to (alpha =1.006) across chain-break tolerance thresholds, with 95% bootstrap confidence intervals consistently excluding the independent-noise prediction (alpha =0.5); a direct fit of a correlated-variance extension recovers (gamma approx 1.8), consistent with the asymptotic relation (gamma =2alpha ). These results indicate that real-hardware variance accumulation deviates from the independent-noise reference and is consistent with a correlated component. The proposed framework offers quantitative guidance for embedding-aware chain-strength tuning and motivates more general noise models incorporating correlated and non-Gaussian hardware effects.</div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":"25 10","pages":""},"PeriodicalIF":2.2,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11128-026-05293-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148986259","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