Quantum Information Processing最新文献

Quantum squeezing effects in coupled van der Pol oscillators

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2025-04-22 DOI: 10.1007/s11128-025-04734-5

M. Preethi, M. Senthilvelan

引用次数: 0

Impact of hardware connectivity on Grover’s algorithm in NISQ era

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2025-04-19 DOI: 10.1007/s11128-025-04733-6

Mohit Joshi, Manoj Kumar Mishra, S. Karthikeyan

{"title":"Impact of hardware connectivity on Grover’s algorithm in NISQ era","authors":"Mohit Joshi, Manoj Kumar Mishra, S. Karthikeyan","doi":"10.1007/s11128-025-04733-6","DOIUrl":"10.1007/s11128-025-04733-6","url":null,"abstract":"<div>The quantum search operation as dictated in Grover’s landmark paper had been a crucial area in the study of quantum algorithms. It has become a critical component in many quantum cryptography and computation algorithms and threatens today’s AES security infrastructure. The quadratic speedup provided by Grover’s algorithm is hampered severely due to the presence of a realistic environment. Many studies have analyzed the effect of different noises on Grover’s search algorithm. However, the efficiency of the algorithm also depends on the connectivity of qubits on realistic quantum hardware. This study evaluated the performance of Grover’s algorithm with varying qubit connectivity under the presence of two-qubit depolarizing noise and single-qubit amplitude damping and dephasing noise. Unidirectional and bidirectional variants of nine coupling maps for qubit connectivity were chosen. The analysis has shown that the transpilation efficiency for Grover’s algorithm is deeply sensitive to the connectivity and degree of the hardware, which influences the depth of the circuit. This, in turn, has a measurable effect on the performance of the algorithm on a particular hardware. This study also ranks the favorable coupling maps using the decision-making technique of AHP-TOPSIS. The analysis has shown that grid, hex, and modified star are the most favorable hardware connectivity. The unidirectional linear, ring, star, and full-connected are the worst choices.</div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":"24 4","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143848998","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

Application of MERA in quantum networks communication: hierarchical entanglement compression management and dynamic optimization

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2025-04-17 DOI: 10.1007/s11128-025-04731-8

Hong Lai, Josef Pieprzyk

{"title":"Application of MERA in quantum networks communication: hierarchical entanglement compression management and dynamic optimization","authors":"Hong Lai, Josef Pieprzyk","doi":"10.1007/s11128-025-04731-8","DOIUrl":"10.1007/s11128-025-04731-8","url":null,"abstract":"<div>This paper explores the use of the multiscale entanglement renormalization ansatz (MERA) in quantum network communication, specifically its application in entanglement compression and dynamic network optimization. We propose a quantum network architecture that employs MERA to efficiently manage entanglement resources through a hierarchical structure, enhancing fault tolerance and network robustness. MERA’s disentanglement and isometric operations facilitate flexible fidelity management of entangled states, allowing the network to maintain integrity even when local entanglement fidelity is compromised. This design supports alternative routing paths, reducing reliance on any single entanglement link. Our approach optimizes quantum information transmission for better entanglement distribution and fidelity, improving error correction capabilities. The framework adapts routing strategies to real-time network conditions, efficiently reducing the number of relay hops needed for key distribution and enhancing resource utilization. This strategic implementation of MERA streamlines quantum communication by minimizing relays and optimizing key exchange processes.</div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":"24 4","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11128-025-04731-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840368","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

Detecting genuine multipartite entanglement based on a class of symmetric measurements

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2025-04-17 DOI: 10.1007/s11128-025-04729-2

Xiaofei Qi, Yuyang Pang, Jinchuan Hou

引用次数: 0

Correction: Error-correctable efficient quantum homomorphic encryption using Calderbank–Shor–Steane codes

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2025-04-17 DOI: 10.1007/s11128-025-04717-6

IlKwon Sohn, Boseon Kim, Kwangil Bae, Wooyeong Song, Wonhyuk Lee

引用次数: 0

Counterfactual quantum network coding without prior shared entanglement

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2025-04-16 DOI: 10.1007/s11128-025-04724-7

Bing-Xin Liu, Yu-Guang Yang, Guang-Bao Xu, Dong-Huan Jiang, Tao Shang, Yi-Hua Zhou, Wei-Min Shi

引用次数: 0

Nonlocality in the alternating Heisenberg–Ising spin chain: effects of coupling, magnetic field, and temperature

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2025-04-15 DOI: 10.1007/s11128-025-04730-9

Jia Bao, Haoran Yan, Fangying Song, Bin Guo, Zhaoyu Sun

{"title":"Nonlocality in the alternating Heisenberg–Ising spin chain: effects of coupling, magnetic field, and temperature","authors":"Jia Bao, Haoran Yan, Fangying Song, Bin Guo, Zhaoyu Sun","doi":"10.1007/s11128-025-04730-9","DOIUrl":"10.1007/s11128-025-04730-9","url":null,"abstract":"<div>We explore bipartite and multipartite nonlocality in the alternating Heisenberg–Ising spin chain model, emphasizing the contrasting and complementary roles of the relative coupling strength (lambda ) (the ratio of the Ising interaction to the Heisenberg interaction), the external magnetic field h, and the temperature T. Bipartite nonlocality is evaluated using the CHSH inequality, and multipartite nonlocality is assessed through Bell-type inequalities derived from g-grouping model theory. Our results show that (lambda ), h, and T significantly affect nonlocality in distinct ways. Increasing (lambda ) suppresses bipartite nonlocality but enhances multipartite nonlocality, highlighting the interaction-specific roles in the system: The Heisenberg interaction primarily governs bipartite nonlocal correlations, whereas the Ising interaction drives multipartite nonlocal correlations. In contrast, both h and T universally suppress bipartite and multipartite nonlocal correlations, irrespective of the interaction type. We also reveal scaling behaviors of nonlocality near the quantum critical points, denoted as (lambda _{c}), where both bipartite and multipartite nonlocality exhibit clear signatures in their first derivatives. Critical scaling is described by (lambda _{c}(N) = lambda _{c}(infty )-aN^{-b}), allowing precise determination of the critical value (lambda _{c}(infty ) = 2) in the thermodynamic limit.</div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":"24 4","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143830886","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 Dot-Enabled quantum key distribution for secure communication channels

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2025-04-10 DOI: 10.1007/s11128-025-04698-6

Hala Hashim Alhashim

{"title":"Quantum Dot-Enabled quantum key distribution for secure communication channels","authors":"Hala Hashim Alhashim","doi":"10.1007/s11128-025-04698-6","DOIUrl":"10.1007/s11128-025-04698-6","url":null,"abstract":"<div>Quantum Dot-Enabled Quantum Key Distribution (QKD) has emerged as a promising approach for establishing secure communication channels, leveraging the unique properties of quantum dots to enhance security and efficiency. In this study, we thoroughly investigated the implementation and performance of a novel QKD protocol incorporating quantum dot technology. Our primary objective was to evaluate the efficacy of the proposed protocol in enhancing secure communication channels by analyzing key performance metrics such as key generation rates, quantum bit error rates (QBER), system efficiency, and security levels. We designed and implemented three distinct scenarios to achieve this objective: basic QKD protocol implementation, QKD protocol with enhanced error correction, and QKD protocol with improved photon detection. Through rigorous experimentation and analysis, we observed significant improvements in key generation rates and reductions in QBER when advanced techniques, such as enhanced error correction and improved photon detection, were employed. Specifically, integrating advanced error correction techniques and enhanced photon detection mechanisms led to higher key generation rates and lower QBER, ultimately enhancing the overall efficiency of secure communication channels. However, our study also identified several limitations and challenges, including the complexity and cost of implementing advanced photon detection technologies. Addressing these challenges will be crucial for realizing the full potential of Quantum Dot-Enabled Quantum Key Distribution in real-world applications. In conclusion, our study provides valuable insights into the feasibility and efficacy of Quantum Dot-Enabled Quantum Key Distribution for secure communication channels. This study contributes to the ongoing efforts to develop advanced quantum communication systems with enhanced security and efficiency by highlighting the key findings, limitations, and future research directions.</div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":"24 4","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143809191","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 graph-theoretical framework to analyze zero discord quantum states

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2025-04-09 DOI: 10.1007/s11128-025-04722-9

Anoopa Joshi, Parvinder Singh, Atul Kumar

引用次数: 0

Quantum correlations in general qubit–qudit axially symmetric states

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2025-04-07 DOI: 10.1007/s11128-025-04719-4

Saeed Haddadi, Elena I. Kuznetsova, M. A. Yurischev

{"title":"Quantum correlations in general qubit–qudit axially symmetric states","authors":"Saeed Haddadi, Elena I. Kuznetsova, M. A. Yurischev","doi":"10.1007/s11128-025-04719-4","DOIUrl":"10.1007/s11128-025-04719-4","url":null,"abstract":"<div>The development and improvement of analytical methods for evaluating nonclassical correlations is one of the most important tasks in quantum information science. In this paper, we investigate a mixed spin-(1/2, S) system with an arbitrary spin S, where the interactions satisfy the U(1) axial symmetry. Analytical formulas for the local quantum uncertainty (LQU) and local quantum Fisher information (LQFI) are derived directly from the elements and eigenvalues of the density matrix. These results are then used to conduct a comparative analysis of the discord-like quantum correlations, LQU and LQFI, in the system at thermal equilibrium. The high-temperature asymptotics of both quantum correlations are found explicitly. Despite the destructive role of temperature in general, the calculations show that the quantum correlations can increase with temperature in local intervals. Under certain conditions, temperature even generates quantum correlations from uncorrelated ground states. Further, as the system cools, quantum correlations can undergo a series of abrupt transitions with a smooth temperature change. These phenomena are demonstrated for different choices of coupling parameters and spin lengths S.</div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":"24 4","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143786520","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