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Issue Information (Adv. Quantum Technol. 11/2024) 发行信息（Adv. Quantum Technol.）
IF 4.4
Advanced quantum technologies Pub Date : 2024-11-14 DOI: 10.1002/qute.202470034
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引用次数: 0
Enhanced Quantum Entanglement Detection of General Two Qubits Systems Based on Modified CNN-BiLSTM Model
IF 4.4
Advanced quantum technologies Pub Date : 2024-10-25 DOI: 10.1002/qute.202400373
Qian Sun, Zhichuan Liao, Nan Jiang
{"title":"Enhanced Quantum Entanglement Detection of General Two Qubits Systems Based on Modified CNN-BiLSTM Model","authors":"Qian Sun,&nbsp;Zhichuan Liao,&nbsp;Nan Jiang","doi":"10.1002/qute.202400373","DOIUrl":"https://doi.org/10.1002/qute.202400373","url":null,"abstract":"<p>Entanglement is a key element in quantum information processing. The detection of entanglement is crucial in many long-range quantum information tasks, including secure communication and fundamental tests of quantum physics, but it is also highly resource-intensive. Even for simple 2-qubits systems, satisfactory detection is challenging. In this work, a modified entanglement detection model combining a convolutional neural network (CNN) and a bidirectional long short-term memory network (BiLSTM) is proposed. It shows that the proposed model can effectively extract the deep features and correlations, enabling accurate classification of simple quantum states, even with only a few tens of training samples. When trained with a large number of highly random samples, the model exhibits outstanding fitting capability, resulting in the reliable classification of nearly all common 2-qubits systems. Furthermore, the model exhibits exceptional adaptability and significant application potential in higher-dimensional systems.</p>","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"8 1","pages":""},"PeriodicalIF":4.4,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143119127","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
Comparative Study of Fast Optimization Method for Four-Intensity Measurement-Device-Independent Quantum Key Distribution Through Machine Learning
IF 4.4
Advanced quantum technologies Pub Date : 2024-10-16 DOI: 10.1002/qute.202400421
Zhou-Kai Cao, Zong-Wen Yu, Cong Jiang, Xiang-Bin Wang
{"title":"Comparative Study of Fast Optimization Method for Four-Intensity Measurement-Device-Independent Quantum Key Distribution Through Machine Learning","authors":"Zhou-Kai Cao,&nbsp;Zong-Wen Yu,&nbsp;Cong Jiang,&nbsp;Xiang-Bin Wang","doi":"10.1002/qute.202400421","DOIUrl":"https://doi.org/10.1002/qute.202400421","url":null,"abstract":"<p>The four-intensity protocol for measurement-device-independent (MDI) quantum key distribution (QKD) is renowned for its excellent performance and extensive experimental implementation. To enhance this protocol, a machine learning-driven rapid parameter optimization method is developed. This initial step involved a speed-up technique that quickly pinpoints the worst-case scenarios with minimal data points during the optimization phase. This is followed by a detailed scan in the key rate calculation phase, streamlining data collection to fit machine learning timelines effectively. Several machine learning models are assessed—Generalized Linear Models (GLM), k-Nearest Neighbors (KNN), Decision Trees (DT), Random Forests (RF), XGBoost (XGB), and Multilayer Perceptron (MLP)—with a focus on predictive accuracy, efficiency, and robustness. RF and MLP were particularly noteworthy for their superior accuracy and robustness, respectively. This optimized approach significantly speeds up computation, enabling complex calculations to be performed in microseconds on standard personal computers, while still achieving high key rates with limited data. Such advancements are crucial for deploying QKD under dynamic conditions, such as in fluctuating fiber-optic networks and satellite communications.</p>","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"8 1","pages":""},"PeriodicalIF":4.4,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143115681","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
Nonreciprocal Photon Transport in a Chiral Optomechanical System 手性光机械系统中的非互惠光子传输
IF 4.4
Advanced quantum technologies Pub Date : 2024-10-15 DOI: 10.1002/qute.202400217
Shi-Tong Huang, Yi-Bing Qian, Zhen-Yu Zhang, Lei Sun, Bang-Pin Hou, Lei Tang
{"title":"Nonreciprocal Photon Transport in a Chiral Optomechanical System","authors":"Shi-Tong Huang,&nbsp;Yi-Bing Qian,&nbsp;Zhen-Yu Zhang,&nbsp;Lei Sun,&nbsp;Bang-Pin Hou,&nbsp;Lei Tang","doi":"10.1002/qute.202400217","DOIUrl":"https://doi.org/10.1002/qute.202400217","url":null,"abstract":"<p>Chiral interaction between light and quantum emitters leads to emergence development of chiral quantum optics and stimulates a wide range of practical applications in quantum regime, such as single-photon isolation and photon unidirectional emission. Cavity optomechanics studying the interaction between optical and mechanical resonators plays an important role in the field of quantum optics. However, how to achieve the chiral interaction between light and mechanical oscillators and explore the applications of the chiral optomechanical systems are still difficult encountered in cavity optomechanics. Here, a method is proposed to achieve chiral optomechanical interaction by exploiting directional squeezed light in a multimode optomechanical system. Based on the chiral interaction between photon and phonon, the nonreciprocal photon transport at a single-photon level can be realized. An isolation ratio of <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mo>&gt;</mo>\u0000 <mn>40</mn>\u0000 <mspace></mspace>\u0000 <mtext>dB</mtext>\u0000 </mrow>\u0000 <annotation>${&amp;gt;}40 text{dB}$</annotation>\u0000 </semantics></math> and a negligible insertion loss for the photonic isolator are obtained. This method paves the way to realize chiral optomechanical interaction for conducting chiral optomechanics and opens up the prospect of exploring and utilizing chiral photon–phonon manipulation in the quantum regime.</p>","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"7 11","pages":""},"PeriodicalIF":4.4,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/qute.202400217","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142642018","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
Maximum Entropy Methods for Quantum State Compatibility Problems 量子态兼容性问题的最大熵方法
IF 4.4
Advanced quantum technologies Pub Date : 2024-10-11 DOI: 10.1002/qute.202400172
Shi-Yao Hou, Zipeng Wu, Jinfeng Zeng, Ningping Cao, Chenfeng Cao, Youning Li, Bei Zeng
{"title":"Maximum Entropy Methods for Quantum State Compatibility Problems","authors":"Shi-Yao Hou,&nbsp;Zipeng Wu,&nbsp;Jinfeng Zeng,&nbsp;Ningping Cao,&nbsp;Chenfeng Cao,&nbsp;Youning Li,&nbsp;Bei Zeng","doi":"10.1002/qute.202400172","DOIUrl":"https://doi.org/10.1002/qute.202400172","url":null,"abstract":"<p>Inferring a quantum system from incomplete information is a common problem in many aspects of quantum information science and applications, where the principle of maximum entropy (MaxEnt) plays an important role. The quantum state compatibility problem asks whether there exists a density matrix <span></span><math>\u0000 <semantics>\u0000 <mi>ρ</mi>\u0000 <annotation>$rho$</annotation>\u0000 </semantics></math> compatible with some given measurement results. Such a compatibility problem can be naturally formulated as a semidefinite programming (SDP), which searches directly for the existence of a <span></span><math>\u0000 <semantics>\u0000 <mi>ρ</mi>\u0000 <annotation>$rho$</annotation>\u0000 </semantics></math>. However, for large system dimensions, it is hard to represent <span></span><math>\u0000 <semantics>\u0000 <mi>ρ</mi>\u0000 <annotation>$rho$</annotation>\u0000 </semantics></math> directly, since it requires too many parameters. In this work, MaxEnt is applied to solve various quantum state compatibility problems, including the quantum marginal problem. An immediate advantage of the MaxEnt method is that it only needs to represent <span></span><math>\u0000 <semantics>\u0000 <mi>ρ</mi>\u0000 <annotation>$rho$</annotation>\u0000 </semantics></math> via a relatively small number of parameters, which is exactly the number of the operators measured. Furthermore, in case of incompatible measurement results, the method will further return a witness that is a supporting hyperplane of the compatible set. The method has a clear geometric meaning and can be computed effectively with hybrid quantum-classical algorithms.</p>","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"7 12","pages":""},"PeriodicalIF":4.4,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142868385","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
Benchmarking Quantum Computational Advantages on Supercomputers 超级计算机量子计算优势基准测试
IF 4.4
Advanced quantum technologies Pub Date : 2024-10-10 DOI: 10.1002/qute.202400143
Junjie Wu, Yong Liu
{"title":"Benchmarking Quantum Computational Advantages on Supercomputers","authors":"Junjie Wu,&nbsp;Yong Liu","doi":"10.1002/qute.202400143","DOIUrl":"https://doi.org/10.1002/qute.202400143","url":null,"abstract":"<p>The achievement of quantum computational advantage, also known as quantum supremacy, is a major milestone at which a quantum computer can solve a problem significantly faster than the world's most powerful classical computers. Two tasks, boson sampling and random quantum circuit sampling, have experimentally exhibited quantum advantages on photonic and superconducting platforms respectively. Classical benchmarking is essential, yet challenging, because these tasks are intractable for classical computers. This study reviews models, algorithms and large-scale simulations of these two sampling tasks. These approaches continue to hold substantial significance for research in both current noisy intermediate-scale quantum (NISQ) systems and future fault-tolerant quantum computing.</p>","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"7 11","pages":""},"PeriodicalIF":4.4,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142641753","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
Issue Information (Adv. Quantum Technol. 10/2024) 发行信息（Adv. Quantum Technol.）
IF 4.4
Advanced quantum technologies Pub Date : 2024-10-10 DOI: 10.1002/qute.202470030
{"title":"Issue Information (Adv. Quantum Technol. 10/2024)","authors":"","doi":"10.1002/qute.202470030","DOIUrl":"https://doi.org/10.1002/qute.202470030","url":null,"abstract":"","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"7 10","pages":""},"PeriodicalIF":4.4,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/qute.202470030","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142430011","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
Inside Front Cover: Nonlinear Effect Analysis and Sensitivity Improvement in Spin Exchange Relaxation Free Atomic Magnetometers (Adv. Quantum Technol. 10/2024) 封面内页：自旋交换弛豫自由原子磁强计中的非线性效应分析和灵敏度改进（Adv.）
IF 4.4
Advanced quantum technologies Pub Date : 2024-10-10 DOI: 10.1002/qute.202470028
Bozheng Xing, Ning Ma, Haoran Lv, Jixi Lu
{"title":"Inside Front Cover: Nonlinear Effect Analysis and Sensitivity Improvement in Spin Exchange Relaxation Free Atomic Magnetometers (Adv. Quantum Technol. 10/2024)","authors":"Bozheng Xing,&nbsp;Ning Ma,&nbsp;Haoran Lv,&nbsp;Jixi Lu","doi":"10.1002/qute.202470028","DOIUrl":"https://doi.org/10.1002/qute.202470028","url":null,"abstract":"<p>Nonlinear effect, which is induced by probe lightatom ensemble interaction, can significantly influence the performance of atomic magnetometers. The cover image shows the nonlinear interaction process between linear-polarized light and atomic ensemble operated in the spin-exchange relaxation-free regime. In article number 2400226, Jixi Lu, Bozheng Xing, and co-workers first propose that the nonlinear effect could be effectively suppressed by optimizing saturation parameters, which causes significant improvement in probe sensitivity of the atomic magnetometer.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"7 10","pages":""},"PeriodicalIF":4.4,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/qute.202470028","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142429935","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
Front Cover: Solid-State Qubit as an On-Chip Controller for Non-Classical Field States (Adv. Quantum Technol. 10/2024) 封面：固态 Qubit 作为非经典场态的片上控制器（Adv. Quantum Technol.）
IF 4.4
Advanced quantum technologies Pub Date : 2024-10-10 DOI: 10.1002/qute.202470027
Roman V. Zakharov, Olga V. Tikhonova, Nikolay V. Klenov, Igor I. Soloviev, Vladimir N. Antonov, Dmitry S. Yakovlev
{"title":"Front Cover: Solid-State Qubit as an On-Chip Controller for Non-Classical Field States (Adv. Quantum Technol. 10/2024)","authors":"Roman V. Zakharov,&nbsp;Olga V. Tikhonova,&nbsp;Nikolay V. Klenov,&nbsp;Igor I. Soloviev,&nbsp;Vladimir N. Antonov,&nbsp;Dmitry S. Yakovlev","doi":"10.1002/qute.202470027","DOIUrl":"https://doi.org/10.1002/qute.202470027","url":null,"abstract":"<p>Current research in quantum matter is strongly focused on quantum computing, communication and the quantum internet. The cover shows an artist's impression of the non-classical Fock state field in a single-mode resonator (red) operating at one frequency being directed to the input of a qubit controller (middle part) and subsequently converted to the desired non-classical (e.g. N00N state) field (green) in an output single-mode resonator operating at another frequency. The results described by Dmitry Yakovlev and co-workers in article number 2400141 open up exciting new possibilities for the quantum connection between solid-state and photonic flying qubits, enabling all-quantum data processing and data transfer.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"7 10","pages":""},"PeriodicalIF":4.4,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/qute.202470027","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142429934","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
Back Cover: Universal Quantum Fisher Information and Simultaneous Occurrence of Landau-Class and Topological-Class Transitions in Non-Hermitian Jaynes-Cummings Models (Adv. Quantum Technol. 10/2024) 封底：非ermitian Jaynes-Cummings 模型中的通用量子费舍尔信息和同时发生的朗道类、拓扑类转变（Adv.）
IF 4.4
Advanced quantum technologies Pub Date : 2024-10-10 DOI: 10.1002/qute.202470029
Zu-Jian Ying
{"title":"Back Cover: Universal Quantum Fisher Information and Simultaneous Occurrence of Landau-Class and Topological-Class Transitions in Non-Hermitian Jaynes-Cummings Models (Adv. Quantum Technol. 10/2024)","authors":"Zu-Jian Ying","doi":"10.1002/qute.202470029","DOIUrl":"https://doi.org/10.1002/qute.202470029","url":null,"abstract":"<p>Light–matter interaction can bridge critical phenomena, topological transitions, quantum metrology, and non-Hermitian physics, bringing novel implications. In non-Hermitian Jaynes–Cummings models with PT and anti-PT symmetries, the quantum Fisher information manifests criticality and super-universality around exceptional points (as shown in article number 2400288 by Zu-Jian Ying), providing a universally high sensitivity resource for quantum metrology. The simultaneous occurrence of conventionally incompatible critical Landau-class transition and topological transition is realized, with conceptional renovation and more potential in designing quantum sensors.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"7 10","pages":""},"PeriodicalIF":4.4,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/qute.202470029","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142429933","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
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