Radiophysics and Quantum Electronics最新文献_第2页

Narrow-Band Entangled Photon-Pair Source for a Quantum Repeater Based on Solid-State Quantum Memory 基于固态量子存储的量子中继器窄带纠缠光子对源

IF 0.8 4区地球科学

Radiophysics and Quantum Electronics Pub Date : 2025-01-06 DOI: 10.1007/s11141-025-10355-w

D. A. Turaykhanov, I. Z. Latypov, A. V. Shkalikov, A. A. Kalachev

引用次数: 0

Aspects of Configuring Weighted Cluster States Under Resource Constraints 资源约束下配置加权集群状态的几个方面

IF 0.8 4区地球科学

Radiophysics and Quantum Electronics Pub Date : 2025-01-06 DOI: 10.1007/s11141-025-10356-9

S. B. Korolev, T. Yu. Golubeva

引用次数: 0

Prospects for Developing Subcarrier Wave Quantum Communication Systems on the Domestic Component Base 在国产组件基础上发展子载波量子通信系统的展望

IF 0.8 4区地球科学

Radiophysics and Quantum Electronics Pub Date : 2025-01-06 DOI: 10.1007/s11141-025-10351-0

S. M. Kynev, V. V. Chistyakov, M. V. Inochkin, S. V. Varzhel, D. V. Kalyazina, A. A. Dmitriev, A. V. Kulikov, A. A. Santev, V. I. Belyakov, A. K. Khalturinsky, A. A. Anisimov, V. V. Kuznetsov, S. A. Kozlov

引用次数: 0

Quantum Sensors of Electric Fields Based on Highly Excited Rydberg Atoms 基于高激发里德伯原子的电场量子传感器

IF 0.8 4区地球科学

Radiophysics and Quantum Electronics Pub Date : 2025-01-06 DOI: 10.1007/s11141-025-10348-9

I. I. Ryabtsev, V. M. Entin, D. B. Tretyakov, E. A. Yakshina, I. I. Beterov, Yu. Ya. Pechersky

{"title":"Quantum Sensors of Electric Fields Based on Highly Excited Rydberg Atoms","authors":"I. I. Ryabtsev, V. M. Entin, D. B. Tretyakov, E. A. Yakshina, I. I. Beterov, Yu. Ya. Pechersky","doi":"10.1007/s11141-025-10348-9","DOIUrl":"10.1007/s11141-025-10348-9","url":null,"abstract":"We give a brief review of the current status of world research in the field of creating quantum sensors of DC and RF electric fields based on highly excited Rydberg atoms with principal quantum number n ≫ 1. Such atoms have large dipole moments, which increase as n2 with increasing n. Due to this fact, electric polarizabilities of Rydberg levels increase as n7 and exceed the polarizabilities of low-excited atoms by many orders of magnitude. This forms the basis for creating highly sensitive quantum sensors. For their implementation, alkali-metal atoms in compact optical vapor cells are excited to Rydberg states. When microwave radiation with a frequency above 1 GHz should be detected, splitting of a single resonance of electromagnetically induced transparency (EIT), which appears under two-photon laser excitation of Rydberg states, into two resonances due to the Autler-Townes (AT) effect in a microwave radiation field is measured. With Rydberg sensors, it is possible to construct both metrological standards for measuring electric field strength and highly sensitive detectors of RF fields for various applications. Our first experimental results on the observation of EIT resonances under two-photon laser excitation 5S1/2 → 5P3/2 → nS1/2 of 85Rb Rydberg states in an optical cell and on the observation of AT splitting in the field of microwave radiation with a frequency of 58.17 GHz, which was in resonance with 41S1/2 → 41P3/2 transition between the neighboring Rydberg states, are also presented.","PeriodicalId":748,"journal":{"name":"Radiophysics and Quantum Electronics","volume":"67 1","pages":"1 - 12"},"PeriodicalIF":0.8,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142976547","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Quantum Memory in An Eu:YSO Crystal for Polarization and Time-Bin Qubit States Eu:YSO晶体中偏振态和时间bin量子比特态的量子记忆

IF 0.8 4区地球科学

Radiophysics and Quantum Electronics Pub Date : 2025-01-06 DOI: 10.1007/s11141-025-10357-8

R. A. Akhmedzhanov, L. A. Gushchin, I. V. Zelensky, A. A. Kalachev, V. A. Nizov, N. A. Nizov, D. A. Sobgaida

引用次数: 0

Quantum Hacking on the Technical Implementation of Continuous-Variable Quantum Key Distribution Systems 连续变量量子密钥分发系统的量子黑客技术实现

IF 0.8 4区地球科学

Radiophysics and Quantum Electronics Pub Date : 2025-01-06 DOI: 10.1007/s11141-025-10350-1

B. A. Nasedkin, R. K. Goncharov, P. A. Morozova, I. M. Filipov, V. V. Chistiakov, E. O. Samsonov, V. I. Egorov

引用次数: 0

Tomography of Polarization Qutrits in the Standard Basis 标准基中偏振分量的层析成像

IF 0.8 4区地球科学

Radiophysics and Quantum Electronics Pub Date : 2025-01-06 DOI: 10.1007/s11141-025-10353-y

N. A. Borshchevskaya, D. R. Chupakhin, B. I. Bantysh, K. G. Katamadze, S. P. Kulik, Yu. I. Bogdanov

引用次数: 0

Laboratory Modeling of the Atmosphere–Ocean Interaction Under a Stormwind (High-Speed Wind-Wave Channel of the Large Thermostatified Tank of the Institute of Applied Physics) 风暴条件下大气-海洋相互作用的实验室模拟（应用物理研究所大型恒温箱高速风浪通道）

IF 0.8 4区地球科学

Radiophysics and Quantum Electronics Pub Date : 2024-12-10 DOI: 10.1007/s11141-024-10344-5

Yu. I. Troitskaya, M. I. Vdovin, D. A. Sergeev

{"title":"Laboratory Modeling of the Atmosphere–Ocean Interaction Under a Stormwind (High-Speed Wind-Wave Channel of the Large Thermostatified Tank of the Institute of Applied Physics)","authors":"Yu. I. Troitskaya, M. I. Vdovin, D. A. Sergeev","doi":"10.1007/s11141-024-10344-5","DOIUrl":"10.1007/s11141-024-10344-5","url":null,"abstract":"We describe the results of studying the small-scale processes in the boundary layer of the atmosphere, including their contribution to the momentum exchange under the storm conditions. The main research method is laboratory modeling performed in the High-Speed Wind-Wave Channel of the Large Thermostratified Tank of the Institute of Applied Physics of the Russian Academy of Sciences (Nizhny Novgorod, Russia). A detailed description of this unique facility and the measurement methods is presented. The dependence of the aerodynamic drag coefficient on the parameters of waves and the foam coverage is studied. A theoretical model is proposed for the description of this dependence. The results of generation of the splashes, which are ripped off from breaking waves by a strong wind, are also presented. Direct-shadow visualization methods in combination with high-speed filming made it possible to classify the fragmentation mechanisms, identify the dominant one, and construct the spray generation function. The issues related to the transfer of the obtained results to the natural conditions on the basis of whitecap method are discussed in the conclusion section.","PeriodicalId":748,"journal":{"name":"Radiophysics and Quantum Electronics","volume":"66 12","pages":"946 - 965"},"PeriodicalIF":0.8,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142870298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Large-Array Processing of Coherence-Degraded Signals: Analytical Study, Modeling, and Estimations of Optimization Possibilities 相干退化信号的大阵列处理：分析研究，建模和优化可能性的估计

IF 0.8 4区地球科学

Radiophysics and Quantum Electronics Pub Date : 2024-12-07 DOI: 10.1007/s11141-024-10346-3

A. I. Malekhanov, A. V. Smirnov

{"title":"Large-Array Processing of Coherence-Degraded Signals: Analytical Study, Modeling, and Estimations of Optimization Possibilities","authors":"A. I. Malekhanov, A. V. Smirnov","doi":"10.1007/s11141-024-10346-3","DOIUrl":"10.1007/s11141-024-10346-3","url":null,"abstract":"This paper gives a comparative analysis of various techniques of array signal processing in cases where the spatial coherence of the useful signal at the input of the receiving array is greatly weakened and the coherence length is small compared to the array size. The main focus is on realistic estimates of the practical possibilities of achieving high values of the array gain for suboptimal processing, which are close to the maximum possible values for optimal processing in such conditions. For this, a generalized parametric model of the signal coherence function is used, which permits one to analyze various reception scenarios for coherence-degraded signals and obtain key dependences characterizing output performance in terms of the array gain in a wide range of specified parameters. It is shown that the choice of the suboptimal method crucially depends on two physical parameters, namely, the relative signal coherence length (compared to the array size) and the relative level of the coherent component in the signal field (compared to its total intensity). The results are considered to be useful for various applications in long-range sonar and radar, where the coherence degradation of the signal wave fronts becomes a typical environmental effect in large array operation.","PeriodicalId":748,"journal":{"name":"Radiophysics and Quantum Electronics","volume":"66 12","pages":"988 - 1011"},"PeriodicalIF":0.8,"publicationDate":"2024-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142870293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Portevin–Le Chatelier Effect as a Nonlinear Wave Process in Deformable Alloys 变形合金中的波蒂文-勒夏特列效应非线性波动过程

IF 0.8 4区地球科学

Radiophysics and Quantum Electronics Pub Date : 2024-12-07 DOI: 10.1007/s11141-024-10347-2

G. F. Sarafanov

{"title":"The Portevin–Le Chatelier Effect as a Nonlinear Wave Process in Deformable Alloys","authors":"G. F. Sarafanov","doi":"10.1007/s11141-024-10347-2","DOIUrl":"10.1007/s11141-024-10347-2","url":null,"abstract":"The instability mechanism of plastic deformations in crystalline alloys is studied on the basis of the autowave approach. A mathematical model is proposed for the serrated flow behavior and localization of the plastic flow in the form of deformation bands—the Portevin–Le Chatelier effect, which manifests itself in a wide range of positive Celsius temperatures. A stationary solution of the initial system of equations at a constant load is found within the framework of the proposed model; the solution is the wave front of the plastic strain rate and is interpreted as a Lüders band. The numerical analysis of the initial model shows that the irregular variations of deforming stress and the spatial wave solutions take place in the instability region determined by the N-shaped dependence of the dislocation deceleration force on the dislocation velocity. This nonlinearity of the deceleration force is due to the peculiarities of the interaction of the dislocations with impurity atoms. The critical dimensionless parameters responsible for the variety of wave solutions of the equation system are determined. For the specific values of these parameters, the irregular oscillation waveform of deforming stress is found, as well as the shape and periodicity of the bursts in plastic strain rate with the oscillation waveform and bursts being strictly correlated and forming the Portevin–Le Chatelier bands, which can be relatively uniform or randomly distributed along the length of the crystal.","PeriodicalId":748,"journal":{"name":"Radiophysics and Quantum Electronics","volume":"66 12","pages":"1012 - 1022"},"PeriodicalIF":0.8,"publicationDate":"2024-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142870295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0