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Radiophysics and Quantum Electronics最新文献

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Multiresonator Quantum Memory with Multicycle Information Storage 具有多周期信息存储的多谐振腔量子存储器
IF 0.8 4区 地球科学
Radiophysics and Quantum Electronics Pub Date : 2025-01-06 DOI: 10.1007/s11141-025-10358-7
N. S. Perminov, S. A. Moiseev
{"title":"Multiresonator Quantum Memory with Multicycle Information Storage","authors":"N. S. Perminov,&nbsp;S. A. Moiseev","doi":"10.1007/s11141-025-10358-7","DOIUrl":"10.1007/s11141-025-10358-7","url":null,"abstract":"<p>We propose a multiresonator quantum memory consisting of four mini-resonators coupled with a common resonator, which is connected with an external waveguide via a switch. Using the optimization methods, it is possible to effectively transmit a signal from the waveguide to the memory and its long-term multi-cycle storage when the switch is turned off. The advantages of the proposed memory and its potential and implementation range are discussed.</p>","PeriodicalId":748,"journal":{"name":"Radiophysics and Quantum Electronics","volume":"67 1","pages":"113 - 119"},"PeriodicalIF":0.8,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142976487","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
Injection Locking for Spectral Filtering of the Addressing Laser for Optical Qubits in 171Yb+ Ions 171Yb+离子中光学量子比特寻址激光器光谱滤波的注入锁定
IF 0.8 4区 地球科学
Radiophysics and Quantum Electronics Pub Date : 2025-01-06 DOI: 10.1007/s11141-025-10349-8
K. P. Galstyan, I. V. Zalivako, D. S. Kryuchkov, N. N. Kolachevsky
{"title":"Injection Locking for Spectral Filtering of the Addressing Laser for Optical Qubits in 171Yb+ Ions","authors":"K. P. Galstyan,&nbsp;I. V. Zalivako,&nbsp;D. S. Kryuchkov,&nbsp;N. N. Kolachevsky","doi":"10.1007/s11141-025-10349-8","DOIUrl":"10.1007/s11141-025-10349-8","url":null,"abstract":"<p>We demonstrate the implementation of a diode laser with high frequency stability at averaging times of 0.1 s to 100 s and low high-frequency phase noise (up to 5 MHz) to control the quantum state of optical qubits based on <sup>171</sup>Yb<sup>+</sup> ions. A high-finesse ULE glass optical cavity is used as an external reference to stabilize the laser frequency and as a spectral filter for high-frequency noise. The calculated suppression of laser phase noise by the cavity at a frequency of 1.2 MHz (where the laser noise density before the filtering reaches its maximum) is 49 dB. Injection locking makes it possible to amplify spectrally pure laser light and use it to control the quantum state of qubits. The spectral purity of the slave laser diode emission is studied by measuring the beat signal of the amplified emission relative to the light transmitted through the cavity. It is shown that the phase noise introduced by injection locking does not exceed -70 dBc in a bandwidth of up to 5 MHz, while an output power of up to 30 mW was achieved.</p>","PeriodicalId":748,"journal":{"name":"Radiophysics and Quantum Electronics","volume":"67 1","pages":"13 - 22"},"PeriodicalIF":0.8,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142976488","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
Single-Photon Source for the Red Spectral Range Based on a Nanoantenna with InAs/AlGaAs Quantum Dots 基于InAs/AlGaAs量子点纳米天线的红光谱单光子源
IF 0.8 4区 地球科学
Radiophysics and Quantum Electronics Pub Date : 2025-01-06 DOI: 10.1007/s11141-025-10354-x
A. I. Veretennikov, M. V. Rakhlin, A. I. Galimov, D. R. Kazanov, G. V. Klimko, I. V. Sedova, M. M. Kulagina, Yu. M. Zadiranov, Yu. A. Guseva, A. A. Toropov
{"title":"Single-Photon Source for the Red Spectral Range Based on a Nanoantenna with InAs/AlGaAs Quantum Dots","authors":"A. I. Veretennikov,&nbsp;M. V. Rakhlin,&nbsp;A. I. Galimov,&nbsp;D. R. Kazanov,&nbsp;G. V. Klimko,&nbsp;I. V. Sedova,&nbsp;M. M. Kulagina,&nbsp;Yu. M. Zadiranov,&nbsp;Yu. A. Guseva,&nbsp;A. A. Toropov","doi":"10.1007/s11141-025-10354-x","DOIUrl":"10.1007/s11141-025-10354-x","url":null,"abstract":"<p>We optimize the geometric parameters of the single-photon source operated in the red spectral range, which is based on a photonic nanoantenna with InAs/AlGaAs quantum dots. This made it possible to determine the range of the transverse dimensions of the cylindrical nanoantenna, within which the maximum efficiency of radiation extraction into the numerical aperture NA = 0.42 is achieved. An increase in the extraction efficiency as compared to a planar structure was demonstrated for the optimized nanostructure. The statistics of single photon correlations under optical pumping with participation of acoustic phonons is studied. The value of the zero-delay second-order correlation function <i>g</i><sup>(2)</sup>(0) was 0.065.</p>","PeriodicalId":748,"journal":{"name":"Radiophysics and Quantum Electronics","volume":"67 1","pages":"72 - 79"},"PeriodicalIF":0.8,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142976492","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
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
{"title":"Narrow-Band Entangled Photon-Pair Source for a Quantum Repeater Based on Solid-State Quantum Memory","authors":"D. A. Turaykhanov,&nbsp;I. Z. Latypov,&nbsp;A. V. Shkalikov,&nbsp;A. A. Kalachev","doi":"10.1007/s11141-025-10355-w","DOIUrl":"10.1007/s11141-025-10355-w","url":null,"abstract":"<p>We present the results of experimental study of nondegenerate spontaneous parametric downconversion in a single-resonance optical parametric oscillator with two PPKTP crystals. The possibility of generating narrow-band polarization-entangled photons, one of which has a wavelength of 580 nm and a spectral width of 8.0 ± 1.5 MHz, has been shown. This makes such a source of photon pairs compatible with solid-state quantum memory based on a Y<sub>2</sub>SiO<sub>5</sub> : Eu<sup>3+</sup> crystal, which is promising for quantum repeaters.</p>","PeriodicalId":748,"journal":{"name":"Radiophysics and Quantum Electronics","volume":"67 1","pages":"80 - 87"},"PeriodicalIF":0.8,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142976550","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
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
{"title":"Aspects of Configuring Weighted Cluster States Under Resource Constraints","authors":"S. B. Korolev,&nbsp;T. Yu. Golubeva","doi":"10.1007/s11141-025-10356-9","DOIUrl":"10.1007/s11141-025-10356-9","url":null,"abstract":"<p>This work studies optimization of cluster state configurations under resource constraints. Taking into account the finite degree of oscillator squeezing, we proposed a way of distributing the weight coefficients of a cluster state for maximizing pairwise entanglement in the cluster. We found constraints imposed on the cluster weight coefficients, as well as on the squeezing degree. In addition, we proposed a method that uses the centrality measure from social network theory for finding the optimal distribution of weight coefficients in a cluster state.</p>","PeriodicalId":748,"journal":{"name":"Radiophysics and Quantum Electronics","volume":"67 1","pages":"88 - 105"},"PeriodicalIF":0.8,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142976490","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
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
{"title":"Prospects for Developing Subcarrier Wave Quantum Communication Systems on the Domestic Component Base","authors":"S. M. Kynev,&nbsp;V. V. Chistyakov,&nbsp;M. V. Inochkin,&nbsp;S. V. Varzhel,&nbsp;D. V. Kalyazina,&nbsp;A. A. Dmitriev,&nbsp;A. V. Kulikov,&nbsp;A. A. Santev,&nbsp;V. I. Belyakov,&nbsp;A. K. Khalturinsky,&nbsp;A. A. Anisimov,&nbsp;V. V. Kuznetsov,&nbsp;S. A. Kozlov","doi":"10.1007/s11141-025-10351-0","DOIUrl":"10.1007/s11141-025-10351-0","url":null,"abstract":"<p>We present the results of using a domestically produced component base for the creation of subcarrier wave quantum communication systems. It is shown that such systems demonstrate a quantum bit generation rate of about 10 kbit/s with a channel loss of 1 dB and quantum error coefficient below 3%. We discuss advances in domestic laser sources and spectral filtering methods for using them in subcarrier wave quantum communication systems.</p>","PeriodicalId":748,"journal":{"name":"Radiophysics and Quantum Electronics","volume":"67 1","pages":"38 - 50"},"PeriodicalIF":0.8,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142976493","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 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,&nbsp;V. M. Entin,&nbsp;D. B. Tretyakov,&nbsp;E. A. Yakshina,&nbsp;I. I. Beterov,&nbsp;Yu. Ya. Pechersky","doi":"10.1007/s11141-025-10348-9","DOIUrl":"10.1007/s11141-025-10348-9","url":null,"abstract":"<p>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 <i>n</i> ≫ 1. Such atoms have large dipole moments, which increase as <i>n</i><sup>2</sup> with increasing <i>n</i>. Due to this fact, electric polarizabilities of Rydberg levels increase as <i>n</i><sup>7</sup> 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 5<i>S</i><sub>1/2</sub> → 5<i>P</i><sub>3/2</sub> → <i>nS</i><sub>1/2</sub> of <sup>85</sup>Rb 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 41<i>S</i><sub>1/2</sub> → 41<i>P</i><sub>3/2</sub> transition between the neighboring Rydberg states, are also presented.</p>","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
{"title":"Quantum Memory in An Eu:YSO Crystal for Polarization and Time-Bin Qubit States","authors":"R. A. Akhmedzhanov,&nbsp;L. A. Gushchin,&nbsp;I. V. Zelensky,&nbsp;A. A. Kalachev,&nbsp;V. A. Nizov,&nbsp;N. A. Nizov,&nbsp;D. A. Sobgaida","doi":"10.1007/s11141-025-10357-8","DOIUrl":"10.1007/s11141-025-10357-8","url":null,"abstract":"<p>We demonstrate the storage and readout of the polarization state of light with a memory based on the atomic frequency comb protocol in a <sup>153</sup>Eu:Y<sub>2</sub>SiO<sub>5</sub> crystal, both in the bright-pulse regime and at the single photon level. We reconstruct the χ-matrix of the process corresponding to our quantum memory and demonstrate the recall fidelity for the quantum state of about 80% at the maximum efficiency of about 26%. It is also shown that the quantum memory stores the phase difference between the stored pulses with high fidelity, which is essential for working with time-bin qubits.</p>","PeriodicalId":748,"journal":{"name":"Radiophysics and Quantum Electronics","volume":"67 1","pages":"106 - 112"},"PeriodicalIF":0.8,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142976549","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 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
{"title":"Quantum Hacking on the Technical Implementation of Continuous-Variable Quantum Key Distribution Systems","authors":"B. A. Nasedkin,&nbsp;R. K. Goncharov,&nbsp;P. A. Morozova,&nbsp;I. M. Filipov,&nbsp;V. V. Chistiakov,&nbsp;E. O. Samsonov,&nbsp;V. I. Egorov","doi":"10.1007/s11141-025-10350-1","DOIUrl":"10.1007/s11141-025-10350-1","url":null,"abstract":"<p>We review attacks on the technical implementation of continuous-variable quantum key distribution systems, considering such attack types as the Trojan-horse attack, the induced-photorefraction attack, and the laser-damage attack. The attacks on the specific features of continuous-variable quantum key distribution systems are also considered.</p>","PeriodicalId":748,"journal":{"name":"Radiophysics and Quantum Electronics","volume":"67 1","pages":"23 - 37"},"PeriodicalIF":0.8,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142976491","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
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
{"title":"Tomography of Polarization Qutrits in the Standard Basis","authors":"N. A. Borshchevskaya,&nbsp;D. R. Chupakhin,&nbsp;B. I. Bantysh,&nbsp;K. G. Katamadze,&nbsp;S. P. Kulik,&nbsp;Yu. I. Bogdanov","doi":"10.1007/s11141-025-10353-y","DOIUrl":"10.1007/s11141-025-10353-y","url":null,"abstract":"<p>We propose a new tomography protocol for reconstruction of the polarization qutrit state that does not require the conversion to a ququart. We show that a set of unitary two-mode polarization transformations is sufficient to perform a full set of measurements. In the experimental realization of the protocol, this transformation is implemented through a quarter-wave plate oriented at different angles. It is shown that this protocol allows one to reconstruct both pure and mixed states.</p>","PeriodicalId":748,"journal":{"name":"Radiophysics and Quantum Electronics","volume":"67 1","pages":"64 - 71"},"PeriodicalIF":0.8,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142976548","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
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