Quantum Information Processing最新文献

Resources of the advantage in quantum illumination: Discord and entanglement 量子照明的优势资源：不和谐与纠缠

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2026-10-17 DOI: 10.1007/s11128-026-05368-x

Mojtaba Asadollahi, Mohammad Hossein Zarei

{"title":"Resources of the advantage in quantum illumination: Discord and entanglement","authors":"Mojtaba Asadollahi, Mohammad Hossein Zarei","doi":"10.1007/s11128-026-05368-x","DOIUrl":"10.1007/s11128-026-05368-x","url":null,"abstract":"<div><p>We investigate how the quantum advantage in quantum illumination is determined by an interplay between entanglement and discord of the probe state. In particular, we consider a setup in which the probe is a maximally mixed marginal (MMM) state and the environmental state is completely mixed where the quantum advantage equals the amount of discord consumed for illumination. Through a conditional extremal analysis, we determine the range of accessible advantages for given values of entanglement and discord. At fixed discord, higher entanglement restricts the accessible advantage to higher values, making high entanglement sufficient for achieving high advantage. Conversely, at fixed entanglement, low discord limits the advantage to low values, indicating that high discord is necessary for high advantage in MMM states. These conclusions remain unchanged when alternative correlation measures, including relative entropy and Bures entanglement and geometric discord, are used. The consistency of our results across multiple conceptually distinct measures indicates that the observed resource-advantage relation is not an artifact of a specific quantifier, but a robust feature of the protocol within the family of MMM states. We finally find that in the high-noise regime (near-maximally-mixed state), quantum advantage is, to leading order, a linear function of the initial discord highlighting discord as the key resource for resilience to noise in the protocol.</p></div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":"25 11","pages":""},"PeriodicalIF":2.2,"publicationDate":"2026-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189608","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

Testing the influence of information entropy in the case of Dirac oscillator (spin-1/2) interaction with the cosmic string topological defect 在宇宙弦拓扑缺陷与狄拉克振荡器（自旋为1/2）相互作用的情况下测试信息熵的影响

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2026-10-13 DOI: 10.1007/s11128-026-05363-2

Quezia R. D. S. Moreira, Abdelmalek Bouzenada, Allan R. P. Moreira, Faizuddin Ahmed, João B. R. Silva

引用次数: 0

Numerical simulation of noise impact on DWDM-based MP-QKD in multi-user scenarios 多用户场景下基于dwdm的MP-QKD噪声影响的数值模拟

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2026-10-12 DOI: 10.1007/s11128-026-05358-z

Rui Xu, Chaojie Wang, Yuzhe Zhao, Rongzhen Jiao

{"title":"Numerical simulation of noise impact on DWDM-based MP-QKD in multi-user scenarios","authors":"Rui Xu, Chaojie Wang, Yuzhe Zhao, Rongzhen Jiao","doi":"10.1007/s11128-026-05358-z","DOIUrl":"10.1007/s11128-026-05358-z","url":null,"abstract":"<div><p>Quantum key distribution (QKD) guarantees the theoretical security of communication based on the principles of quantum mechanics and serves as a core component of quantum communication networks. To address the challenge of enabling multi-user concurrent communication and improving transmission efficiency, the integration of dense wavelength division multiplexing (DWDM) technology with QKD protocols has emerged as an important research direction. This paper focuses on the performance of the MP-QKD protocol based on DWDM in multi-user scenarios, analyzing the impact of key parameters such as the number of channels, different noise type, channel isolation, classical channel power, and detector configuration on the system noise rate and secret key rate through numerical simulations. The results demonstrate that DWDM technology can enhance the total secret key capacity through multi-channel parallel transmission, while optimizing channel isolation, classical channel power, channel count, and detector configuration can effectively suppress noise interference and improve system performance. These findings provide useful guidance for the practical deployment of multi-user quantum communication networks with low noise and high performance.</p></div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":"25 10","pages":""},"PeriodicalIF":2.2,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149188970","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

Hybrid plasmonic-photonic cloaking for secure quantum communication 用于安全量子通信的等离子体-光子混合隐身

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2026-10-12 DOI: 10.1007/s11128-026-05365-0

M. Afshari-Bavil, A. Hosseinnezhad, H. Sabri

{"title":"Hybrid plasmonic-photonic cloaking for secure quantum communication","authors":"M. Afshari-Bavil, A. Hosseinnezhad, H. Sabri","doi":"10.1007/s11128-026-05365-0","DOIUrl":"10.1007/s11128-026-05365-0","url":null,"abstract":"<div><p>The rapid development of quantum communication networks has highlighted the urgent need for physical-layer protection mechanisms that complement cryptographic protocols. While photonic systems provide low-loss transmission and high-fidelity quantum state manipulation, they remain vulnerable to side-channel leakage and electromagnetic probing. Plasmonic nanostructures, on the other hand, offer extreme field confinement and tunable resonance properties, enabling adaptive shielding against external interrogation. In this work, we propose a hybrid plasmonic–photonic cloaking framework designed to enhance the security of quantum communication channels. The architecture integrates metamaterial-based plasmonic layers with photonic waveguides to dynamically suppress scattering signatures, minimize information leakage, and preserve quantum coherence. Analytical modeling and numerical simulations demonstrate that the hybrid cloak achieves attenuation exceeding 40 dB in targeted probing bands while maintaining entanglement visibility above 90%. The results indicate that combining plasmonic resonance with photonic interference provides a scalable and reconfigurable defense strategy for next-generation quantum networks, including fiber-based, free-space, and satellite communication systems. This study establishes a foundation for multi-layered quantum security architectures where physical cloaking complements protocol-level cryptography.</p></div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":"25 10","pages":""},"PeriodicalIF":2.2,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189046","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

Implementing an information-theoretically secure Byzantine agreement with quantum signed message solution 使用量子签名消息解决方案实现信息理论上安全的拜占庭协议

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2026-10-12 DOI: 10.1007/s11128-026-05332-9

Yao Zhou, Feng-Yu Lu, Zhen-Qiang Yin, Shuang Wang, Wei Chen, Guang-Can Guo, Zheng-Fu Han

{"title":"Implementing an information-theoretically secure Byzantine agreement with quantum signed message solution","authors":"Yao Zhou, Feng-Yu Lu, Zhen-Qiang Yin, Shuang Wang, Wei Chen, Guang-Can Guo, Zheng-Fu Han","doi":"10.1007/s11128-026-05332-9","DOIUrl":"10.1007/s11128-026-05332-9","url":null,"abstract":"<div><p>Byzantine agreement (BA) enables all honest nodes in a decentralized network to reach consensus. In the era of emerging quantum technologies, classical cryptography-based BA protocols face inherent security vulnerabilities. By leveraging information-theoretically secure keys generated by quantum processing, such as quantum key distribution (QKD), and utilizing the one-time pad (OTP) and one-time universal hashing (OTUH) classical methods, we propose a quantum signed Byzantine agreement (QSBA) protocol based on the quantum signed message (QSM) scheme. This protocol achieves information-theoretic security using only QKD-shared key resources between network nodes, without requiring quantum entanglement or other advanced quantum resources. Compared to the recently proposed quantum Byzantine agreement (QBA), our QSBA achieves superior fault tolerance, extending the threshold from nearly 1/2 to an arbitrary number of malicious nodes. Furthermore, our QSBA significantly reduces communication complexity under the same number of malicious nodes. Simulation results in a 5-node twin-field QKD network highlight the efficiency of our protocol, showcasing its potential for secure and resource-efficient consensus in quantum networks.</p></div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":"25 10","pages":""},"PeriodicalIF":2.2,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189133","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

Exploring the effect of intrinsic decoherence on the quantum correlations in (2otimes 3) Heisenberg chains exposed to inhomogeneous magnetic field 探索不均匀磁场下(2otimes 3)海森堡链中本征退相干对量子相关的影响

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2026-10-12 DOI: 10.1007/s11128-026-05362-3

Tamer A. Seoudy, N. H. Abdel-Wahab, Ahmed Salah

{"title":"Exploring the effect of intrinsic decoherence on the quantum correlations in (2otimes 3) Heisenberg chains exposed to inhomogeneous magnetic field","authors":"Tamer A. Seoudy, N. H. Abdel-Wahab, Ahmed Salah","doi":"10.1007/s11128-026-05362-3","DOIUrl":"10.1007/s11128-026-05362-3","url":null,"abstract":"<div><p>While the effects of intrinsic decoherence on homogeneous Heisenberg spin chains are widely documented, hybrid lower-dimensional architectures remain less explored. In this work, we investigate a heterogeneous quantum system comprising a spin-1 (qutrit) and a spin-<span>(frac{1}{2})</span> (qubit) coupled under the influence of an inhomogeneous magnetic field. Under the assumption that the system originates from an initial thermal state, we derive an exact analytical solution for the density matrix using the Milburn master equation. We monitor the dynamical evolution of several key quantumness measures including geometric quantum discord, von Neumann entropy, and concurrence with a particular focus on how intrinsic decoherence reshapes their temporal profiles. Our numerical and analytical results demonstrate that robust quantum correlations and high-degree entanglement can be successfully generated and preserved by carefully tuning both the decoherence rate and the magnetic field inhomogeneity parameter. Furthermore, we test the ultimate bounds of parameter estimation within this framework by evaluating the Quantum Fisher Information (QFI). The results reveal that estimation precision is highly sensitive to both the relative magnitude of the parameters and the specific QFI metric employed. Crucially, optimal estimation accuracy remains strictly confined to early interaction intervals, experiencing severe degradation as the system evolves toward its long-time steady state.</p></div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":"25 10","pages":""},"PeriodicalIF":2.2,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189134","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 suite of routing algorithms for bursty demands in quantum networks 一套针对量子网络突发需求的路由算法

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2026-10-12 DOI: 10.1007/s11128-026-05355-2

Anoop Kumar Pandey, Anubhav Srivastava, Pranav K. Nayak, Bheemarjuna Reddy Tamma, M. V. Panduranga Rao

{"title":"A suite of routing algorithms for bursty demands in quantum networks","authors":"Anoop Kumar Pandey, Anubhav Srivastava, Pranav K. Nayak, Bheemarjuna Reddy Tamma, M. V. Panduranga Rao","doi":"10.1007/s11128-026-05355-2","DOIUrl":"10.1007/s11128-026-05355-2","url":null,"abstract":"<div><p>Quantum network routing is an area of research that primarily involves finding paths for entanglement swapping to distribute entangled qubit pairs (EPR) between two quantum nodes. This paper considers a “burst” variant of the problem. In this variant, if <span>(d_{i})</span> EPR pairs are to be shared between quantum nodes <span>(s_i)</span> and <span>(e_i)</span>, they have to be shared within a short pre-specified time interval that starts at time instant <span>(ST_{i})</span> and ends at <span>(ET_{i})</span>. This is a natural requirement in the case of applications that need several shared EPR pairs, and the quantum memory is not long-lived, thereby imposing timing constraints. We first investigate a simple variant of the problem. Although simpler, it is still easily shown to be NP-hard. We study this variant by formulating and solving it as an integer linear programming (ILP), and designing a fast greedy heuristic algorithm for it. While the heuristic algorithm takes significantly less time to solve the problem than the ILP, we empirically observe that the solution seems to mimic that of the ILP formulation. Motivated by this, we generalize the greedy heuristic into a framework that can be easily adapted to yield different heuristics for different objective functions. A crucial feature of this greedy framework is that it splits the demands for EPR pairs among multiple paths and temporally. We finally present several heuristics under this framework for different variants of the problem—like starvation avoidance and minimizing the number of “spatial splits”—and compare their performance.</p></div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":"25 10","pages":""},"PeriodicalIF":2.2,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189135","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

Bidirectional quantum teleportation through an open Heisenberg XYZ with Dzyaloshinskii–Moriya interaction channel driven by DRAG pulses 通过开放的hyisenberg XYZ与Dzyaloshinskii-Moriya相互作用通道的双向量子隐形传态

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2026-10-12 DOI: 10.1007/s11128-026-05348-1

M. Y. Abd-Rabbou, F. Aljuaydi, E. K. Jaradat, A. S. A. Alghwali

{"title":"Bidirectional quantum teleportation through an open Heisenberg XYZ with Dzyaloshinskii–Moriya interaction channel driven by DRAG pulses","authors":"M. Y. Abd-Rabbou, F. Aljuaydi, E. K. Jaradat, A. S. A. Alghwali","doi":"10.1007/s11128-026-05348-1","DOIUrl":"10.1007/s11128-026-05348-1","url":null,"abstract":"<div><p>Bidirectional quantum teleportation enables simultaneous information exchange across distributed networks. Practical implementations rely on physical spin channels that suffer from inherent asymmetries and environmental decoherence. We investigate a bidirectional teleportation protocol operating through an open Heisenberg XYZ channel augmented with a Dzyaloshinskii–Moriya interaction. The antisymmetric spin-orbit coupling breaks the exchange symmetry between the communicating parties, inducing a fundamental directional asymmetry in the information transfer. We evaluate the protocol performance using directional state fidelities and the quantum Fisher information under Markovian amplitude damping and pure dephasing. We apply Derivative Removal by Adiabatic Gate pulses to actively protect the distributed entanglement. The optimized quadrature correction suppresses computational leakage and elevates the performance bounds across all evaluated metrics. The numerical results establish the operational limits of asymmetric quantum communication channels and demonstrate the necessity of precise pulse calibration for maintaining a quantum advantage.\u0000</p></div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":"25 10","pages":""},"PeriodicalIF":2.2,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149188972","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 single-image super resolution 量子单图像超分辨率

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2026-10-09 DOI: 10.1007/s11128-026-05357-0

Prashant Gohel, Manjunath Joshi

{"title":"Quantum single-image super resolution","authors":"Prashant Gohel, Manjunath Joshi","doi":"10.1007/s11128-026-05357-0","DOIUrl":"10.1007/s11128-026-05357-0","url":null,"abstract":"<div><p>We propose a classically simulated hybrid Quantum–classical deep learning method for single-image Super-Resolution (SR). The method integrates Variational Quantum Circuits (VQCs) with an Enhanced Deep Super-Resolution (EDSR) architecture. After training on paired Low-Resolution (LR) and High-Resolution (HR) images, the model reconstructs an SR image from a given LR input. The training objective constrains both LR and HR reconstructions. An Inhomogeneous Gaussian Markov Random Field (IGMRF) prior is used as a spatial regularizer, eliminating the need for externally pre-trained networks to construct perceptual loss. Experimental results are reported for <span>(4times )</span> and <span>(8times )</span> Super-Resolution using Peak Signal-to-Noise Ratio (PSNR), Structural Similarity Index (SSIM), and Learned Perceptual Image Patch Similarity (LPIPS). A model trained for <span>(2times )</span> enhancement is applied recursively to obtain higher-magnification factors. Quantitative and qualitative examples illustrate recursive enhancement up to <span>(8times )</span> without architectural modification. Simulated depolarizing-noise and circuit-connectivity ablations show gradual performance changes under the tested settings. Since all Quantum components are simulated on classical hardware, these results are presented as evidence of the proposed hybrid representation in a simulation-based setting, while hardware-level Quantum acceleration remains a direction for future investigation.\u0000</p></div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":"25 10","pages":""},"PeriodicalIF":2.2,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149132649","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-coupled dual-channel pricing dynamics with reference-price memory 具有参考价格记忆的量子耦合双通道定价动态

IF 2.2 3区物理与天体物理

Quantum Information Processing Pub Date : 2026-10-08 DOI: 10.1007/s11128-026-05360-5

Jiayu Shen, Lian Shi, Kai Zhu

{"title":"Quantum-coupled dual-channel pricing dynamics with reference-price memory","authors":"Jiayu Shen, Lian Shi, Kai Zhu","doi":"10.1007/s11128-026-05360-5","DOIUrl":"10.1007/s11128-026-05360-5","url":null,"abstract":"<div><p>This paper studies nonlinear dynamics and chaos control in a dual-channel pricing game with quantum-inspired price coupling and reference-price memory. A manufacturer sells through a direct channel and supplies a retailer under a wholesale contract. Observable prices are generated by a strategic coupling mapping with intensity parameter <span>(gamma )</span>, while consumers form channel-specific reference prices through exponential smoothing. The static Stackelberg model determines the contractual wholesale benchmark, whereas, conditional on this fixed wholesale price, multiplicative bounded-rationality learning generates a four-dimensional nonlinear discrete-time system with an independently computed dynamic fixed point. We analyze local stability through the full Jacobian and reveal global phenomena including period-doubling routes to chaos, multi-band attractors, and irregular bounded oscillations. Wholesale-price sensitivity analysis shows that the qualitative flip-bifurcation mechanism is preserved around the contractual benchmark. We further compare local state-feedback and delayed-feedback controllers. Both achieve convergence to the dynamic fixed point in the chaotic baseline regime, as confirmed by tracking errors that remain below the prescribed threshold, decaying control inputs, and controlled spectral radii below one.</p></div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":"25 10","pages":""},"PeriodicalIF":2.2,"publicationDate":"2026-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149132827","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