Advanced quantum technologies最新文献_第10页

Computing the Molecular Ground State Energy in a Restricted Active Space Using Quantum Annealing 利用量子退火计算受限有源空间中的分子基态能量

IF 4.3

Advanced quantum technologies Pub Date : 2026-07-19 DOI: 10.1002/qute.70368

Stefano Bruni, Enrico Prati

{"title":"Computing the Molecular Ground State Energy in a Restricted Active Space Using Quantum Annealing","authors":"Stefano Bruni, Enrico Prati","doi":"10.1002/qute.70368","DOIUrl":"https://doi.org/10.1002/qute.70368","url":null,"abstract":"<p>Calculating the molecular ground-state energy is a central challenge in computational chemistry. Conventional methods such as the Complete Active Space Configuration Interaction scale exponentially with molecular size, limiting their applicability to large molecules. Quantum computing offers a promising alternative by mapping molecular Hamiltonians to qubits, enabling cheaper computational scaling. Previous studies have shown that it is possible to formulate molecular ground state calculations as discrete optimization problems, addressable by quantum annealing. However, these efforts have been limited by previous generations of hardware and suboptimal annealing techniques. Here, the <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <msub>\u0000 <mi>H</mi>\u0000 <mn>2</mn>\u0000 </msub>\u0000 <mi>O</mi>\u0000 </mrow>\u0000 <annotation>${rm H}_2{rm O}$</annotation>\u0000 </semantics></math> ground-state problem is mapped to an Ising Hamiltonian using the Xian–Bias–Kas (XBK) method. By taking advantage of enhanced qubit connectivity and shorter embedding chains, it is solved with a more than doubled probability of achieving Hartree–Fock–level solutions with respect to the most advanced predecessor. Advanced annealing strategies extend Hartree–Fock–level accuracy to significantly larger problem instances, enabling solutions that use nearly 2.5 times more physically embedded qubits than the largest cases previously reported and allowing to improve annealing results by two orders of magnitude, reaching an energy difference of 0.120 Hartree relative to Hartree-Fock. These results show tangible progress toward practical quantum annealing applications in the NISQ era.</p>","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"9 7","pages":""},"PeriodicalIF":4.3,"publicationDate":"2026-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/qute.70368","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148615362","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Observation of Non-Markovian Evolution of Tripartite Quantum Steering 三方量子转向的非马尔可夫演化观察

IF 4.3

Advanced quantum technologies Pub Date : 2026-07-19 DOI: 10.1002/qute.70373

Yan Wang, Shao-Qi Lin, Rui-Qi Shen, Fang-Liang Chen, Guo-Qiang Zhang, Li-Jiong Shen, Yong-Nan Sun, Qi-Ping Su, Chui-Ping Yang

引用次数: 0

A Biorthogonal Route to Resource-Efficient Holonomic Logical Gates in Non-Hermitian Systems 非厄米系统中通往资源高效完整逻辑门的双正交路径

IF 4.3

Advanced quantum technologies Pub Date : 2026-07-13 DOI: 10.1002/qute.70365

Wenlong Sun, Yuhan Li, Zhao Jin, Tianxiang Hou, Yuanfeng Jin

{"title":"A Biorthogonal Route to Resource-Efficient Holonomic Logical Gates in Non-Hermitian Systems","authors":"Wenlong Sun, Yuhan Li, Zhao Jin, Tianxiang Hou, Yuanfeng Jin","doi":"10.1002/qute.70365","DOIUrl":"https://doi.org/10.1002/qute.70365","url":null,"abstract":"<div>\u0000 \u0000 <p>Efficient control matters for holonomic operations in effective non-Hermitian quantum platforms, where loss, detuning, and asymmetric couplings can raise the cost of implementation. We propose a biorthogonal design strategy for nonadiabatic holonomic logical gates in non-Hermitian systems. The logical operation is defined by cyclic right and dual computational subspaces, rather than by an ordinary unitary gate under the standard Hermitian inner product. A generalized commutation relation separates the induced logical evolution into geometric and dynamical factors, so that the total dynamical factor can be cancelled over one cycle without imposing pointwise parallel transport. As an example, we construct a one-qubit holonomic logical gate in a three-level non-Hermitian system by direct Hamiltonian reconstruction. A systematic path-matched scan shows that the commutation-based realization lowers the integrated coupling area and the total control area throughout the scanned design family, while peak-strength reduction appears only in selected regions. We further evaluate postselection yield and representative control-error fidelity diagnostics, so that the resource reduction is interpreted together with operational success probability and robustness. The results point to biorthogonal design as a useful route to conditional non-Hermitian holonomic operations with reduced control demands.</p>\u0000 </div>","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"9 7","pages":""},"PeriodicalIF":4.3,"publicationDate":"2026-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148466869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Heralded Conversion of Multi-Qubit Entangled States With Quantum Multiplexing 用量子复用技术实现多量子位纠缠态的预示转换

IF 4.3

Advanced quantum technologies Pub Date : 2026-07-13 DOI: 10.1002/qute.70360

Liu-Yong Cheng, Wen-Qi Yang, Qian-Yun Li, Jie Di, A-Peng Liu, Shen-Shen Yang, Guo-Hui Yang

{"title":"Heralded Conversion of Multi-Qubit Entangled States With Quantum Multiplexing","authors":"Liu-Yong Cheng, Wen-Qi Yang, Qian-Yun Li, Jie Di, A-Peng Liu, Shen-Shen Yang, Guo-Hui Yang","doi":"10.1002/qute.70360","DOIUrl":"https://doi.org/10.1002/qute.70360","url":null,"abstract":"<div>\u0000 \u0000 <p>This paper constructs a quantum multiplexing system centered on the single-photon time-bin degree of freedom to investigate the heralded conversion schemes of multi-qubit states between distant quantum memories. By analyzing the input-output relationship between a single photon and an atom-cavity coupled system, we clarify the fundamental quantum memory unit enabling state conversion. Two kind of schemes for multi-qubit entangled state conversion are proposed: first, the conversion from an <span></span><math>\u0000 <semantics>\u0000 <mi>n</mi>\u0000 <annotation>$n$</annotation>\u0000 </semantics></math>-qubit KLM state to a W state, where a cyclic iterative mechanism effectively enhances efficiency; second, the conversion from an <span></span><math>\u0000 <semantics>\u0000 <mi>n</mi>\u0000 <annotation>$n$</annotation>\u0000 </semantics></math>-qubit W state to a GHZ state, which requires differentiated time-bin mode designs tailored for systems with odd or even numbers of qubits. Both schemes allow for heralded verification of conversion success through the detection response of the single-photon time-bin mode. Performance analysis shows that the conversion efficiency of these schemes is sensitive to the single-photon reflectance coefficient. The proposed schemes can achieve high-fidelity conversion under currently feasible experimental parameters, and the quantum memory unit can be implemented in various quantum systems, such as atoms, nitrogen-vacancy centers, and silicon-vacancy centers.</p>\u0000 </div>","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"9 7","pages":""},"PeriodicalIF":4.3,"publicationDate":"2026-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148467038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Quantum Recurrence Plot Algorithm Based on Quantum Principal Component Analysis 基于量子主成分分析的量子递归图算法

IF 4.3

Advanced quantum technologies Pub Date : 2026-07-06 DOI: 10.1002/qute.70357

Hanhuai Zhu, Jingjing Huang, Zhi-Xi Wang, Shao-Ming Fei

引用次数: 0

QSAFE-V: Quantum-Enhanced Lightweight Authentication Protocol Design For Vehicular Tactile Wireless Networks QSAFE-V：车载触觉无线网络量子增强轻量级认证协议设计

IF 4.3

Advanced quantum technologies Pub Date : 2026-07-06 DOI: 10.1002/qute.202500864

Shakil Ahmed, Amika Tabassum, Ashfaq Khokhar

{"title":"QSAFE-V: Quantum-Enhanced Lightweight Authentication Protocol Design For Vehicular Tactile Wireless Networks","authors":"Shakil Ahmed, Amika Tabassum, Ashfaq Khokhar","doi":"10.1002/qute.202500864","DOIUrl":"https://doi.org/10.1002/qute.202500864","url":null,"abstract":"<p>With the rapid advancement of 6G technology, the Tactile Internet is emerging as a novel paradigm of interaction, particularly in intelligent transportation systems, where stringent demands for ultra-low latency and high reliability are prevalent. During the transmission and coordination of autonomous vehicles, malicious adversaries may attempt to compromise control commands or swarm behavior, posing severe threats to road safety and vehicular intelligence. Many existing authentication schemes claim to provide security against conventional attacks. However, recent developments in quantum computing have revealed critical vulnerabilities in these schemes, particularly under quantum-enabled adversarial models. In this context, the design of a quantum-secured, lightweight authentication scheme that is adaptable to vehicular mobility becomes essential. This paper proposes QSAFE-V, a quantum-secured authentication framework for edge-enabled vehicles that surpasses traditional security models. We conduct formal security proofs based on quantum key distribution and quantum adversary models, and also perform context-driven reauthentication analysis based on vehicular behavior. The proposed framework is designed under a hybrid quantum-classical architecture, enabling practical deployment in near-term 6G vehicular networks where quantum capabilities are provisioned at edge infrastructure. The output of quantum resilience evaluations indicates that QSAFE-V provides robust protection against quantum and contextual attacks. Furthermore, detailed performance analysis reveals that QSAFE-V achieves comparable communication and computation costs to classical schemes, while offering significantly stronger security guarantees under wireless Tactile Internet conditions.</p>","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"9 7","pages":""},"PeriodicalIF":4.3,"publicationDate":"2026-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/qute.202500864","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148462810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Noise Resilient Real-Time Phase Imaging via Undetected Light 基于未探测光的噪声弹性实时相位成像

IF 4.3

Advanced quantum technologies Pub Date : 2026-07-06 DOI: 10.1002/qute.70355

Josué R. León-Torres, Patrick Hendra, Yugant Mukeshbhai Hadiyal, Christopher Spiess, Fabian Steinlechner, Frank Setzpfandt, Markus Gräfe, Valerio Flavio Gili

{"title":"Noise Resilient Real-Time Phase Imaging via Undetected Light","authors":"Josué R. León-Torres, Patrick Hendra, Yugant Mukeshbhai Hadiyal, Christopher Spiess, Fabian Steinlechner, Frank Setzpfandt, Markus Gräfe, Valerio Flavio Gili","doi":"10.1002/qute.70355","DOIUrl":"https://doi.org/10.1002/qute.70355","url":null,"abstract":"<p>Quantum imaging with undetected light has recently emerged as a technique in which quantum correlations and nonlinear interferometry are combined to decouple illumination and detection paths. This approach has been more recently extended and combined with digital phase-shifting holography and off-axis holography to extract both the amplitude and phase information of a sample relying on single-photon interference. Despite these advantages, implementing the technique in real-world scenarios where the observed system is subject to environmental noise and dynamic variations remains challenging. The primary limitation lies in the inability of quantum imaging systems to retrieve object information in real time under high-noise conditions. Here, real-time amplitude and phase imaging in noisy environments is experimentally demonstrated, building upon our previous implementation of quantum off-axis holography. Our results demonstrate real-time imaging at acquisition rates up to 4 Hz, even when the noise level exceeds the signal by an order of magnitude.</p>","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"9 7","pages":""},"PeriodicalIF":4.3,"publicationDate":"2026-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/qute.70355","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148462809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Adaptive Phase Control of 4 × $times$ 4 Clements MZI Mesh for Stabilizing Noisy Gaussian Boson Sampling in Integrated Quantum Photonics 集成量子光子学中稳定高斯玻色子噪声采样的4 × $ × $ 4元MZI网格自适应相位控制

IF 4.3

Advanced quantum technologies Pub Date : 2026-07-06 DOI: 10.1002/qute.70353

Ravi Roushan Kumar, Prantik Basu, Devendra Chack

{"title":"Adaptive Phase Control of 4\u0000 \u0000 ×\u0000 $times$\u0000 4 Clements MZI Mesh for Stabilizing Noisy Gaussian Boson Sampling in Integrated Quantum Photonics","authors":"Ravi Roushan Kumar, Prantik Basu, Devendra Chack","doi":"10.1002/qute.70353","DOIUrl":"https://doi.org/10.1002/qute.70353","url":null,"abstract":"<div>\u0000 \u0000 <p>Photonic quantum information processing has emerged as a leading platform for demonstrating quantum advantage. Among these, Gaussian Boson Sampling (GBS) is a powerful model of quantum computation. However, practical GBS devices are intrinsically affected by fabrication imperfections, phase noise, and temporal drift, which distort output photon statistics and ultimately limit scalability and long-term stability. In this work, a noisy GBS device is numerically investigated using a 4<span></span><math>\u0000 <semantics>\u0000 <mo>×</mo>\u0000 <annotation>$times$</annotation>\u0000 </semantics></math>4 reconfigurable interferometer based on the Clements architecture. The interferometer is modeled using a multimode interference using 3D FDTD, yielding an extinction ratio of 47 dB and an insertion loss of 0.6 dB at 1550 nm. Noise and phase drift are incorporated through a Hamiltonian-based noise model. To quantify the impact of noise, graph decoding techniques were employed to characterize structural distortions in the sampled output distributions. Further, the fundamental limitations of static calibration in the presence of time-dependent drift were investigated. This work overcomes these limitations with an adaptive reinforcement-learning controller that can dynamically compensate for Hamiltonian drift and noise. Which maintains stable output statistics close to the target GBS distribution even under non-stationary perturbations. Finally, the potential applications of GBS, with the advantage of adaptive stabilization of GBS devices, were discussed.</p>\u0000 </div>","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"9 7","pages":""},"PeriodicalIF":4.3,"publicationDate":"2026-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148462808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Global Probability Asymmetry for Curve-Optimal Entropic Bounds and Additivity Certificates for Quantum Channels 曲线最优熵界的全局概率不对称性及量子信道的可加性证明

IF 4.3

Advanced quantum technologies Pub Date : 2026-07-06 DOI: 10.1002/qute.70361

Tariq Aziz, Naeem Akhtar, Liu Ye, Dong Wang

{"title":"Global Probability Asymmetry for Curve-Optimal Entropic Bounds and Additivity Certificates for Quantum Channels","authors":"Tariq Aziz, Naeem Akhtar, Liu Ye, Dong Wang","doi":"10.1002/qute.70361","DOIUrl":"https://doi.org/10.1002/qute.70361","url":null,"abstract":"<div>\u0000 \u0000 <p>We introduce global probability asymmetry (GPA), a scalar computed from sorted outcome frequencies that quantifies concentration through Lorenz-curve cumulative-excess gaps. Our key contribution is a novel, tight entropy–asymmetry envelope: for fixed GPA in dimension <span></span><math>\u0000 <semantics>\u0000 <mi>d</mi>\u0000 <annotation>$d$</annotation>\u0000 </semantics></math>, the Shannon entropy is uniquely minimized by a one-peak-plus-uniform-tail (OPPUT) distribution. This provides a closed-form, curve-optimal certificate and supports finite-sample propagation via explicit Lipschitz stability of GPA. Building on this envelope, we derive coupled preparation-uncertainty bounds for a fixed measurement pair, including a tomography-free, count-level form based on the overlap matrix, with an observable mismatch penalty. The method is extended to classical side information and hybridized with standard quantum-memory overlap bounds. Finally, applying the envelope to output spectra offers a single-letter sufficient criterion certifying two-use additivity of minimum output entropy (MOE) for Hastings-type random-unitary channels, with probabilistic certification windows from matrix concentration.</p>\u0000 </div>","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"9 7","pages":""},"PeriodicalIF":4.3,"publicationDate":"2026-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148462807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancing Optomechanical Entanglement and Mechanical Squeezing by the Synergistic Effect of Quadratic Optomechanical Coupling and Coherent Feedback 二次光机耦合与相干反馈的协同效应增强光机纠缠与机械压缩

IF 4.3

Advanced quantum technologies Pub Date : 2026-06-30 DOI: 10.1002/qute.70354

Ya-Feng Jiao, Ruo-Chen Wang, Jing-Xue Liu, Huilai Zhang, Ya-Chuan Liang, Yan Wang, Le-Man Kuang, Hui Jing

{"title":"Enhancing Optomechanical Entanglement and Mechanical Squeezing by the Synergistic Effect of Quadratic Optomechanical Coupling and Coherent Feedback","authors":"Ya-Feng Jiao, Ruo-Chen Wang, Jing-Xue Liu, Huilai Zhang, Ya-Chuan Liang, Yan Wang, Le-Man Kuang, Hui Jing","doi":"10.1002/qute.70354","DOIUrl":"https://doi.org/10.1002/qute.70354","url":null,"abstract":"<div>\u0000 \u0000 <p>In this paper, we investigate how to achieve strong optomechanical entanglement and mechanical squeezing in a membrane-embedded cavity optomechanical system incorporating a coherent feedback loop, where the membrane interacts with the cavity mode through both linear and quadratic optomechanical couplings. This hybrid optomechanical architecture offers a flexible tunability of intrinsic system parameters, thereby enabling controlled stiffening or softening of the mechanical mode through adjusting quadratic optomechanical coupling, as well as effective modulation of the cavity decay rate via feedback control. More importantly, the synergistic interplay effect allows for a strategic reconfiguration of the system's stability regime, which in turn permits the presence of significantly enhanced effective optomechanical coupling strengths before entering the unstable regime. Exploiting these unique features, we showcase that optomechanical entanglement can be substantially enhanced with positive coupling sign and suitable feedback parameters, while strong mechanical squeezing beyond the 3dB limit is simultaneously achieved over a broad parameter range with negative coupling sign, reaching squeezing degree above 10dB under optimized conditions. Our proposal, establishing an all-optical method for generating highly entangled or squeezed states in cavity optomechanical systems, opens up a new route to explore macroscopic quantum effects and to advance quantum information processing.</p>\u0000 </div>","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"9 7","pages":""},"PeriodicalIF":4.3,"publicationDate":"2026-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148358283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0