Quantum Science and Technology最新文献_第5页

QSSS-LTE: quantum secret sharing scheme over lattice-based threshold encryption QSSS-LTE：基于格子阈值加密的量子秘密共享方案

IF 6.7 2区物理与天体物理

Quantum Science and Technology Pub Date : 2025-09-07 DOI: 10.1088/2058-9565/adff2f

Xiuli Song, Tianai Xu, Yousheng Zhou and Tao Wu

{"title":"QSSS-LTE: quantum secret sharing scheme over lattice-based threshold encryption","authors":"Xiuli Song, Tianai Xu, Yousheng Zhou and Tao Wu","doi":"10.1088/2058-9565/adff2f","DOIUrl":"https://doi.org/10.1088/2058-9565/adff2f","url":null,"abstract":"This paper proposed a quantum secret sharing scheme over lattice-based threshold encryption: it integrates resplittable threshold public key encryption (RTPKE) and utilizes a lattice-based private key share transmission mechanism to enhance the security of the share distribution process. By leveraging the dynamic key management features of RTPKE, the scheme can flexibly adjust key distribution as required when participants change. During the quantum secret reconstruction process, the decoy particles do not need to be detected by eavesdroppers when transmitted between participants. Instead, this task is performed by a semi-trusted third party (TP), reducing resource consumption and communication overhead. The decoy particles are not chosen from a fixed quantum bases but are instead in completely random quantum bases, making it impossible for an eavesdropper to obtain the correct result through conventional measurements. The probability of the eavesdropper escaping detection after measuring any decoy particle is nearly zero. After each participant performs a unitary operation, they randomly shuffle the sequence of decoy and information particles. When the particles are transmitted back to the TP, the TP uses the sequence information recorded by the participants to restore the original order and extract the information particles, effectively defending against forgery-replay attacks and potential threats from dishonest participants.","PeriodicalId":20821,"journal":{"name":"Quantum Science and Technology","volume":"31 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145008960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Enhancing the Ramsey contrast of an NV-ensemble in diamond using quantum optimal control 利用量子最优控制增强金刚石中nv系综的Ramsey对比度

IF 6.7 2区物理与天体物理

Quantum Science and Technology Pub Date : 2025-09-04 DOI: 10.1088/2058-9565/adffb2

Isabell Jauch, Artur Skljarow, Thomas Strohm, Florian Dolde, Tino Fuchs and Fedor Jelezko

引用次数: 0

A nonstabilizerness monotone from stabilizerness asymmetry 由稳定性不对称得到的非稳定性单调

IF 6.7 2区物理与天体物理

Quantum Science and Technology Pub Date : 2025-08-31 DOI: 10.1088/2058-9565/adfd0d

Poetri Sonya Tarabunga, Martina Frau, Tobias Haug, Emanuele Tirrito and Lorenzo Piroli

{"title":"A nonstabilizerness monotone from stabilizerness asymmetry","authors":"Poetri Sonya Tarabunga, Martina Frau, Tobias Haug, Emanuele Tirrito and Lorenzo Piroli","doi":"10.1088/2058-9565/adfd0d","DOIUrl":"https://doi.org/10.1088/2058-9565/adfd0d","url":null,"abstract":"We introduce a nonstabilizerness monotone which we name basis-minimized stabilizerness asymmetry (BMSA). It is based on the notion of G-asymmetry, a measure of how much a certain state deviates from being symmetric with respect to a symmetry group G. For pure states, we show that the BMSA is a strong monotone for magic-state resource theory, while it can be extended to mixed states via the convex roof construction. We discuss its relation with other magic monotones, first showing that the BMSA coincides with the recently introduced basis-minimized measurement entropy, thereby establishing the strong monotonicity of the latter. Next, we provide inequalities between the BMSA and other nonstabilizerness measures such as the robustness of magic, stabilizer extent, stabilizer rank, stabilizer fidelity and stabilizer Rényi entropy. We also prove that the stabilizer fidelity, stabilizer Rényi entropy and BMSA with index have the same asymptotic scaling with qubit number. Finally, we present numerical methods to compute the BMSA, highlighting its advantages and drawbacks compared to other nonstabilizerness measures in the context of pure many-body quantum states. We also discuss the importance of additivity and strong monotonicity for measures of nonstabilizerness in many-body physics, motivating the search for additional computable nonstabilizerness monotones.","PeriodicalId":20821,"journal":{"name":"Quantum Science and Technology","volume":"35 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144924090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 ergodicity and scrambling in quantum annealers 量子退火炉中的量子遍历性和置乱

IF 6.7 2区物理与天体物理

Quantum Science and Technology Pub Date : 2025-08-31 DOI: 10.1088/2058-9565/adfc08

Manuel H Muñoz-Arias and Pablo M Poggi

引用次数: 0

Variational quantum algorithm for constrained topology optimization 约束拓扑优化的变分量子算法

IF 6.7 2区物理与天体物理

Quantum Science and Technology Pub Date : 2025-08-28 DOI: 10.1088/2058-9565/adfc92

Jungin E Kim and Yan Wang

引用次数: 0

Disentangling quantum autoencoder 解纠缠量子自编码器

IF 6.7 2区物理与天体物理

Quantum Science and Technology Pub Date : 2025-08-26 DOI: 10.1088/2058-9565/adfc07

Adithya Sireesh, Abdulla Alhajri, M S Kim and Tobias Haug

引用次数: 0

Quantum generative classification with mixed states 混合态量子生成分类

IF 6.7 2区物理与天体物理

Quantum Science and Technology Pub Date : 2025-08-26 DOI: 10.1088/2058-9565/adf350

Diego H Useche, Sergio Quiroga-Sandoval, Sebastian L Molina, Vladimir Vargas-Calderón, Juan E Ardila-García and Fabio A González

{"title":"Quantum generative classification with mixed states","authors":"Diego H Useche, Sergio Quiroga-Sandoval, Sebastian L Molina, Vladimir Vargas-Calderón, Juan E Ardila-García and Fabio A González","doi":"10.1088/2058-9565/adf350","DOIUrl":"https://doi.org/10.1088/2058-9565/adf350","url":null,"abstract":"Classification can be performed using either a discriminative or a generative learning approach. Discriminative learning consists of constructing the conditional probability of the outputs given the inputs, while generative learning consists of constructing the joint probability density of the inputs and outputs. Although most classical and quantum methods are discriminative, there are some advantages of the generative learning approach. For instance, it can be applied to unsupervised learning, statistical inference, uncertainty estimation, and synthetic data generation. In this article, we present a quantum generative multiclass classification strategy, called quantum generative classification (QGC). This model uses a variational quantum algorithm to estimate the joint probability density function of features and labels of a data set by means of a mixed quantum state. We also introduce a quantum map called quantum-enhanced Fourier features, which leverages quantum superposition to prepare high-dimensional data samples in quantum hardware using a small number of qubits. We show that the QGC algorithm can be viewed as a Gaussian mixture that reproduces a kernel Hilbert space of the training data. In addition, we developed a hybrid quantum–classical neural network that shows that it is possible to perform generative classification on high-dimensional data sets. The method was tested on various low- and high-dimensional data sets including the 10-class MNIST and Fashion-MNIST data sets, illustrating that the generative classification strategy is competitive against other previous quantum models.","PeriodicalId":20821,"journal":{"name":"Quantum Science and Technology","volume":"56 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144905992","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

An experimental investigation of quantum frequency correlations resilience against white and colored noise 量子频率相关抗白噪声和有色噪声弹性的实验研究

IF 6.7 2区物理与天体物理

Quantum Science and Technology Pub Date : 2025-08-20 DOI: 10.1088/2058-9565/adf7d0

Linda Sansoni, Eleonora Stefanutti and Andrea Chiuri

{"title":"An experimental investigation of quantum frequency correlations resilience against white and colored noise","authors":"Linda Sansoni, Eleonora Stefanutti and Andrea Chiuri","doi":"10.1088/2058-9565/adf7d0","DOIUrl":"https://doi.org/10.1088/2058-9565/adf7d0","url":null,"abstract":"Quantum technologies based on photons rely on correlated pairs generated through nonlinear optics. Hence, understanding the impact of disturbances is of paramount importance for the development of this innovative field. Here we focus on the quantum spectroscopy as one of the most promising quantum technique showing a realistic perspective for a future employment. In this field, the most interesting disturbance is represented by the frequency noise. We present an experiment aimed at testing and characterizing the resilience against different levels of white and colored noise and we include simulations to generalize our findings. With this work we demonstrate that the spectroscopical properties of both the target and the noise, as well as the strength of the quantum correlations, play a crucial role and could have e huge impact on the performances, especially in terms of achievable spectral resolution. Remarkably, the presence of a specific region where the technology is always robust against any kind of noise represents an advantage allowing to deal with optimal measurements and fully exploit the capabilities of this technology.","PeriodicalId":20821,"journal":{"name":"Quantum Science and Technology","volume":"14 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144898143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Complexity of Gaussian quantum optics with a limited number of non-linearities 具有有限数量非线性的高斯量子光学的复杂性

IF 6.7 2区物理与天体物理

Quantum Science and Technology Pub Date : 2025-08-20 DOI: 10.1088/2058-9565/adf6d4

Michael G Jabbour and Leonardo Novo

引用次数: 0

Quantum teleportation of cat states with binary-outcome measurements 具有二元结果测量的量子隐形传态

IF 6.7 2区物理与天体物理

Quantum Science and Technology Pub Date : 2025-08-20 DOI: 10.1088/2058-9565/adf572

Jingyan Feng, Mohan Zhang, Matteo Fadel and Tim Byrnes

引用次数: 0