Quantum Information Processing最新文献_第9页

Lightweight mediated quantum key distribution based on d-level Bell states 基于d级贝尔态的轻量级中介量子密钥分发

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2025-08-07 DOI: 10.1007/s11128-025-04875-7

Wen-Wen Hu, She-Xiang Jiang, Ping Fan, Wei Ye

引用次数: 0

New QEC codes from cyclic codes over finite chain rings 有限链环上循环码的QEC新码

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2025-08-07 DOI: 10.1007/s11128-025-04868-6

Xiaoyan Zhang, Peng Hu

引用次数: 0

Hierarchical quantum operation sharing of single- and two-qubit partially unknown quantum operations 单量子比特和双量子比特部分未知量子运算的分层量子运算共享

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2025-08-06 DOI: 10.1007/s11128-025-04867-7

Plaban Saha, Manoj Kumar Mandal, Binayak S. Choudhury

{"title":"Hierarchical quantum operation sharing of single- and two-qubit partially unknown quantum operations","authors":"Plaban Saha, Manoj Kumar Mandal, Binayak S. Choudhury","doi":"10.1007/s11128-025-04867-7","DOIUrl":"10.1007/s11128-025-04867-7","url":null,"abstract":"<div><p>In this paper, we deal with two problems of quantum operation sharing, which is the remote implementation of quantum operations on qubits held at distant places by one of the many possible receivers. It is a combination of quantum secret sharing and quantum operator teleportation. We perform it on single-qubit and two-qubit systems. The operations are partially unknown and are collected from specific sets of unitary operators. We use maximally entangled states as our quantum resources. Moreover, there is a hierarchy of receivers by which the securities of the protocols are enhanced. We have investigated the performance of one of our protocols under various quantum noise channels, including amplitude damping (AD), phase damping (PD), bit-flip (BF), phase-flip (PF) and depolarizing (DP) channels. The fidelity of the protocol is calculated for each noise type, showing maximum values of 1 in all cases, while the minimum fidelity varies: 0 for AD, BF and PF noise; 0.5 for PD noise; and 0.25 for DP noise. We have simulated one of our protocols on the Qiskit platform. A statistical analysis of the results obtained from the simulation indicates that the standard deviation of the probabilities <span>(P(|0rangle ))</span> and <span>(P(|1rangle ))</span> decreases with increased number of shots.</p></div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":"24 8","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145142472","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

Partial blind quantum computation: a framework for selective circuit protection 部分盲量子计算：一种选择性电路保护框架

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2025-08-04 DOI: 10.1007/s11128-025-04865-9

Youngkyung Lee, Doyoung Chung

{"title":"Partial blind quantum computation: a framework for selective circuit protection","authors":"Youngkyung Lee, Doyoung Chung","doi":"10.1007/s11128-025-04865-9","DOIUrl":"10.1007/s11128-025-04865-9","url":null,"abstract":"<div><p>Quantum computing is rapidly advancing toward cloud-based services, raising significant concerns about the privacy and security of computations outsourced to untrusted quantum servers. Universal blind quantum computation (UBQC) protocols enable clients with limited quantum resources to delegate computations while concealing both inputs and circuit details. However, applying UBQC uniformly to an entire quantum circuit incurs additional quantum resources and computational overhead, which can be a significant burden in practical implementations. In many cases, such as Grover’s algorithm, only specific subroutines-like oracles-contain sensitive information, while the rest of the circuit does not require the same level of protection. Therefore, selectively applying UBQC to critical components can enhance computational efficiency while maintaining security. In this work, we propose a selective application of UBQC that targets only the critical components of quantum circuits. By integrating techniques from quantum homomorphic encryption (QHE) and UBQC, our approach secures the sensitive subcircuits while allowing the remaining, non-sensitive portions to be executed more efficiently. In our framework, UBQC-protected sections output quantum states that are encrypted via bit-flip and phase-flip operations, and we devise a mechanism based on selective <i>X</i> and <i>Z</i> gate corrections to seamlessly interface these with unprotected sections. We provide a security analysis demonstrating that our selective UBQC approach preserves universality, correctness, and blindness, and we illustrate its practical advantages through an application to Grover’s algorithm. This work paves the way for more efficient and practical secure quantum computing on near-term devices.</p></div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":"24 8","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145142408","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

Many-body localization properties of one-dimensional anisotropic spin-1/2 chains 一维各向异性自旋-1/2链的多体局域化性质

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2025-08-04 DOI: 10.1007/s11128-025-04860-0

Taotao Hu, Yuting Li, Jiameng Hong, Dongyan Guo, Xiaodan Li, Kangning Chen

{"title":"Many-body localization properties of one-dimensional anisotropic spin-1/2 chains","authors":"Taotao Hu, Yuting Li, Jiameng Hong, Dongyan Guo, Xiaodan Li, Kangning Chen","doi":"10.1007/s11128-025-04860-0","DOIUrl":"10.1007/s11128-025-04860-0","url":null,"abstract":"<div><p>In this paper, we theoretically investigate the many-body localization (MBL) properties of one-dimensional anisotropic spin-1/2 chains by using the exact matrix diagonalization method. Starting from the Ising spin-1/2 chain, we introduce different forms of external fields and spin coupling interactions, and construct three distinct anisotropic spin-1/2 chain models. The influence of these interactions on the MBL phase transition is systematically explored. We first analyze the eigenstate properties by computing the excited-state fidelity. The results show that MBL phase transitions occur in all three models, and that both the anisotropy parameter and the finite system size significantly affect the critical disorder strength of the transition. Moreover, we calculated the bipartite entanglement entropy of the system, and the critical points determined by the intersection of curves for different system sizes are basically consistent with those obtained from the excited-state fidelity. Then, the dynamical characteristics of the systems are studied through the time evolution of diagonal entropy, local magnetization, and fidelity. These observations further confirm the occurrence of the MBL phase transition and allow for a clear distinction between the ergodic (thermal) phase and the many-body localized phase. Finally, to examine the effect of additional interactions on the transition, we incorporate Dzyaloshinskii–Moriya (DM) interactions into the three models. The results demonstrate that the MBL phase transition still occurs in the presence of DM interactions. However, the anisotropy parameter and finite system size significantly affect the critical disorder strength. Moreover, the critical behavior is somewhat suppressed, indicating that DM interactions tend to inhibit the onset of localization.</p></div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":"24 8","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145142409","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

Variational quantum eigensolver toward non-bonded interaction system with hardware-efficient ansatz 非键相互作用系统的变分量子特征解算器

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2025-08-02 DOI: 10.1007/s11128-025-04861-z

Boyang Yan, Jingyuan Li

引用次数: 0

Robust and macroscopic genuine tripartite entanglement of levitated magnomechanical systems based on a nonlinear optical medium 基于非线性光学介质的悬浮磁力系统鲁棒宏观真三方纠缠

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2025-08-02 DOI: 10.1007/s11128-025-04859-7

Jian-Song Zhang, Wen-Xue Zhong, Guang-Ling Cheng, Ai-Xi Chen

引用次数: 0

Charging a quantum battery with interacting spin baths in a trio coherent state 在三相干态下用相互作用的自旋浴给量子电池充电

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2025-07-31 DOI: 10.1007/s11128-025-04854-y

M. Y. Abd-Rabbou, H. Allhibi, F. Aljuaydi, A.-B. A. Mohamed

引用次数: 0

Robust entanglement measure for mixed quantum states 混合量子态的鲁棒纠缠测量

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2025-07-31 DOI: 10.1007/s11128-025-04863-x

Dharmaraj Ramachandran, Aditya Dubey, Subrahmanyam S. G. Mantha, Radhika Vathsan

引用次数: 0

Enhancing the performance of variational quantum classifiers with hybrid autoencoders 利用混合自编码器提高变分量子分类器的性能

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2025-07-30 DOI: 10.1007/s11128-025-04864-w

Georgios Maragkopoulos, Aikaterini Mandilara, Antonia Tsili, Dimitris Syvridis

{"title":"Enhancing the performance of variational quantum classifiers with hybrid autoencoders","authors":"Georgios Maragkopoulos, Aikaterini Mandilara, Antonia Tsili, Dimitris Syvridis","doi":"10.1007/s11128-025-04864-w","DOIUrl":"10.1007/s11128-025-04864-w","url":null,"abstract":"<div><p>Variational quantum circuits (VQC) lie at the forefront of quantum machine learning research. Still, the use of quantum networks for real data processing remains challenging as the number of available qubits cannot accommodate a large dimensionality of data—if the usual angle encoding scenario is used. To achieve dimensionality reduction, Principal Component Analysis is routinely applied as a pre-processing method before the embedding of the classical features on qubits. In this work, we propose an alternative method which reduces the dimensionality of a given dataset by taking into account the specific quantum embedding that comes after. This method aspires to make quantum machine learning with VQCs more versatile and effective on datasets of high dimension. At a second step, we propose a quantum-inspired classical autoencoder model which can be used to encode information in low latent spaces. The power of our proposed models is exhibited via numerical tests. We show that our targeted dimensionality reduction method considerably boosts VQC’s performance, and we also identify cases for which the second model outperforms classical autoencoders in terms of reconstruction loss.</p></div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":"24 8","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11128-025-04864-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145170606","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