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Volume Capture into Channeling in a Weakly Bent Crystal 弱弯曲晶体中通道的体积捕获
IF 1.3 4区 物理与天体物理
JETP Letters Pub Date : 2025-08-19 DOI: 10.1134/S0021364025607092
A. G. Vasil’eva, A. A. Durum, M. Yu. Kostin, V. A. Maisheev, E. V. Parmenova, I. V. Poluektov, Yu. E. Sandomirskii, M. Yu. Chesnokov, Yu. A. Chesnokov, A. A. Yanovich
{"title":"Volume Capture into Channeling in a Weakly Bent Crystal","authors":"A. G. Vasil’eva,&nbsp;A. A. Durum,&nbsp;M. Yu. Kostin,&nbsp;V. A. Maisheev,&nbsp;E. V. Parmenova,&nbsp;I. V. Poluektov,&nbsp;Yu. E. Sandomirskii,&nbsp;M. Yu. Chesnokov,&nbsp;Yu. A. Chesnokov,&nbsp;A. A. Yanovich","doi":"10.1134/S0021364025607092","DOIUrl":"10.1134/S0021364025607092","url":null,"abstract":"<p>Data on the efficiency of the volume capture of high-energy particles into channeling in a weakly bent crystal are presented. The volume capture of 50-GeV protons in a weakly bent silicon crystal with a bending radius of 5 m (60 critical radii) has been investigated at the U-70 accelerator (Protvino, Russia). The fractions of the deflected beam have been measured to be <span>((3.6 pm 1){kern 1pt} % )</span> and <span>((1.1 pm 0.3){kern 1pt} % )</span>, depending on the particle deflection angle and the path in the crystal. The experimental data obtained are in good agreement with the theoretical calculations. The method for deflecting the beam using volume capture is promising for steering secondary particle beams with high angular divergence.</p>","PeriodicalId":604,"journal":{"name":"JETP Letters","volume":"122 1","pages":"8 - 11"},"PeriodicalIF":1.3,"publicationDate":"2025-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S0021364025607092.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144868607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Search for Large Extra Dimensions in the DANSS Experiment 在DANSS实验中寻找大的额外维度
IF 1.3 4区 物理与天体物理
JETP Letters Pub Date : 2025-08-19 DOI: 10.1134/S0021364025607110
I. G. Alekseev, V. V. Belov, A. D. Bystryakov, P. A. Gorovtsov, M. V. Danilov, I. V. Zhitnikov, D. R. Zinatulina, S. V. Kazartsev, A. S. Kobyakin, A. L. Krapiva, A. S. Kuznetsov, I. V. Machikhil’yan, N. A. Mashin, D. V. Medvedev, V. M. Nesterov, D. V. Ponomarev, V. Yu. Rusinov, E. I. Samigullin, D. N. Svirida, N. A. Skrobova, E. I. Tarkovskii, D. V. Filosofov, M. V. Fomina, E. A. Shevchik, M. V. Shirchenko, Yu. A. Shitov, E. A. Yakushev
{"title":"Search for Large Extra Dimensions in the DANSS Experiment","authors":"I. G. Alekseev,&nbsp;V. V. Belov,&nbsp;A. D. Bystryakov,&nbsp;P. A. Gorovtsov,&nbsp;M. V. Danilov,&nbsp;I. V. Zhitnikov,&nbsp;D. R. Zinatulina,&nbsp;S. V. Kazartsev,&nbsp;A. S. Kobyakin,&nbsp;A. L. Krapiva,&nbsp;A. S. Kuznetsov,&nbsp;I. V. Machikhil’yan,&nbsp;N. A. Mashin,&nbsp;D. V. Medvedev,&nbsp;V. M. Nesterov,&nbsp;D. V. Ponomarev,&nbsp;V. Yu. Rusinov,&nbsp;E. I. Samigullin,&nbsp;D. N. Svirida,&nbsp;N. A. Skrobova,&nbsp;E. I. Tarkovskii,&nbsp;D. V. Filosofov,&nbsp;M. V. Fomina,&nbsp;E. A. Shevchik,&nbsp;M. V. Shirchenko,&nbsp;Yu. A. Shitov,&nbsp;E. A. Yakushev","doi":"10.1134/S0021364025607110","DOIUrl":"10.1134/S0021364025607110","url":null,"abstract":"<p>The DANSS detector is located near the power reactor at the Kalinin Nuclear Power Plant (at distances of 10.9–12.9 m) and is able to detect up to 5000 antineutrino events per day. The results of the search for Large Extra Dimensions in the simplest case of a single dominant large extra dimension are discussed. The particle oscillations to a finite-size extra dimension are assumed in this theory, and its predictions depend on the difference between the squared masses, as well as on the absolute scale of the neutrino masses. The sensitivity of the experiment to Large Extra Dimensions for various values of the model parameters such as the size of the large extra dimension <i>a</i> and the lightest-neutrino mass <span>({{m}_{0}})</span> can be determined by its Monte Carlo simulation. No statistically significant indications of the existence of Large Extra Dimensions have been obtained from the analysis of almost 5.8 million antineutrino events (the statistical confidence of the best point is only 2.0σ (1.8σ) for the normal (inverted) ordering of neutrino masses). The bounds have been determined for the size of the extra dimension and the lightest neutrino mass. These bounds for a number of regions are the best in the world. These bounds exclude a large fraction of the parameters preferable for explaining the gallium anomaly and the reactor antineutrino anomaly in this model, including the corresponding best points.</p>","PeriodicalId":604,"journal":{"name":"JETP Letters","volume":"122 1","pages":"1 - 7"},"PeriodicalIF":1.3,"publicationDate":"2025-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S0021364025607110.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144868608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exchange Bias in a Ferrihydrite Nanoparticle System: The Role of a Common Integrated Surface for a Conglomerate (Cluster) of Nanoparticles 水合铁纳米颗粒系统中的交换偏置：纳米颗粒砾石（簇）的共同集成表面的作用
IF 1.3 4区 物理与天体物理
JETP Letters Pub Date : 2025-08-19 DOI: 10.1134/S0021364025607353
D. A. Balaev, A. A. Krasikov, S. A. Skorobogatov, S. V. Stolyar, R. N. Yaroslavtsev, R. S. Iskhakov
{"title":"Exchange Bias in a Ferrihydrite Nanoparticle System: The Role of a Common Integrated Surface for a Conglomerate (Cluster) of Nanoparticles","authors":"D. A. Balaev,&nbsp;A. A. Krasikov,&nbsp;S. A. Skorobogatov,&nbsp;S. V. Stolyar,&nbsp;R. N. Yaroslavtsev,&nbsp;R. S. Iskhakov","doi":"10.1134/S0021364025607353","DOIUrl":"10.1134/S0021364025607353","url":null,"abstract":"<p>Magnetic hysteresis loops of two representative samples of synthetic ferrihydrite nanoparticles with the same sizes (the average size of <span>( approx )</span>2.7 nm) and various interparticle distances have been studied under cooling conditions in the presence and absence of an external field. One initial sample is characterized by the aggregation of nanoparticles, and a shift in the magnetic hysteresis loop along the abscissa axis is observed after cooling from a temperature exceeding the superparamagnetic blocking temperature in the external field. The particles in another sample are spatially separated by coating their surface with an arabinogalactan layer, and the shift of the hysteresis loop after cooling in the external field is not observed in this sample. This experimental fact indicates that one of the important factors determining the shift of the hysteresis loop of nanoparticle systems is a pronounced subsystem of surface spins formed during the close contact of particles, which can be considered as a kind of the surface effect. Because of the exchange coupling between the subsystem of surface spins (common for a conglomerate of particles) and uncompensated moments of particles, an additional source of the unidirectional magnetic anisotropy arises during cooling in the external field, which is the origin of the observed exchange bias of the magnetic hysteresis loop.</p>","PeriodicalId":604,"journal":{"name":"JETP Letters","volume":"122 1","pages":"48 - 54"},"PeriodicalIF":1.3,"publicationDate":"2025-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S0021364025607353.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144869107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of the Stark Interaction in the Dynamics of an Atomic System in a Broadband Squeezed Electromagnetic Field 宽带压缩电磁场中原子系统动力学中Stark相互作用的影响
IF 1.3 4区 物理与天体物理
JETP Letters Pub Date : 2025-08-19 DOI: 10.1134/S002136402560675X
A. I. Trubilko, A. M. Basharov
{"title":"Effects of the Stark Interaction in the Dynamics of an Atomic System in a Broadband Squeezed Electromagnetic Field","authors":"A. I. Trubilko,&nbsp;A. M. Basharov","doi":"10.1134/S002136402560675X","DOIUrl":"10.1134/S002136402560675X","url":null,"abstract":"<p>The effects of the Stark interaction in the collective radiation of an ensemble of atoms in the field of a broadband electromagnetic field in a squeezed quantum state have been considered. It has been shown that the inclusion of the conditions for the formation of the squeezed field allows one to describe the dynamics of atoms in terms of random quantum creating, annihilating, and counting processes. The latter process is the Stark interaction of atoms and the field and manifests itself in the form of a trigger superradiance pulse generated by an ensemble of identical atoms excited by a quantized resonant squeezed electromagnetic field. The description is based on the kinetic equation derived for an open localized quantum system in a broadband squeezed quantized electromagnetic field. The resulting equation differs from the known ones, but agrees with them in particular and limiting cases.</p>","PeriodicalId":604,"journal":{"name":"JETP Letters","volume":"122 1","pages":"22 - 31"},"PeriodicalIF":1.3,"publicationDate":"2025-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S002136402560675X.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144869110","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Virtual Casing Principle in Models with 2D Plasma and 3D Wall in a Tokamak 托卡马克二维等离子体和三维壁模型的虚拟机匣原理
IF 1.3 4区 物理与天体物理
JETP Letters Pub Date : 2025-08-08 DOI: 10.1134/S0021364025607067
V. D. Pustovitov, M. E. Sukhovitskaya
{"title":"Virtual Casing Principle in Models with 2D Plasma and 3D Wall in a Tokamak","authors":"V. D. Pustovitov,&nbsp;M. E. Sukhovitskaya","doi":"10.1134/S0021364025607067","DOIUrl":"10.1134/S0021364025607067","url":null,"abstract":"<p>The error arising in the description of the magnetic field is evaluated when the constraint is imposed that the external three-dimensional (3D) perturbation <span>({mathbf{b}})</span> does not penetrate into the tokamak plasma. Such a three-dimensional approach has been used in the plasma equilibrium evolutionary problems solved by the CarMa code [F. Villone, L. Barbato, S. Mastrostefano, and S. Ventre, Plasma Phys. Control. Fusion <b>55</b>, 095008 (2013)], where the plasma is treated as a two-dimensional (2D) object, while the vacuum vessel wall is three-dimensional (3D). The toroidal surface separating the 2D and 3D regions is called the coupling surface (CS). This surface acts as a virtual casing, but with the additional condition <span>({mathbf{b}} = 0)</span> imposed within the torus CS. Here, attention is attracted to the fact that, in a normal situation, the field <span>({mathbf{b}})</span> in the plasma-wall gap must depend on the plasma response. However, the prescription <span>({mathbf{b}} = 0)</span> inside the torus CS eliminates this ambiguity. As a consequence, a discontinuity in the tangential component of <span>({mathbf{b}})</span> inevitably arises at the CS, necessitating the presence of a current on this surface. The magnitude of this fictitious current and its contribution to the magnetic perturbation <span>({mathbf{b}})</span> are estimated. It is shown that this current significantly influences both the magnitude and the distribution of the field <span>({mathbf{b}})</span>.</p>","PeriodicalId":604,"journal":{"name":"JETP Letters","volume":"122 4","pages":"221 - 226"},"PeriodicalIF":1.3,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145204693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Local Thermometry of NbSe2 Flake with Delta-T Noise Measurements 用δ - t噪声测量NbSe2薄片的局部温度
IF 1.3 4区 物理与天体物理
JETP Letters Pub Date : 2025-08-08 DOI: 10.1134/S0021364025607869
M. G. Prokudina, A. F. Shevchun, V. S. Khrapai, E. S. Tikhonov
{"title":"Local Thermometry of NbSe2 Flake with Delta-T Noise Measurements","authors":"M. G. Prokudina,&nbsp;A. F. Shevchun,&nbsp;V. S. Khrapai,&nbsp;E. S. Tikhonov","doi":"10.1134/S0021364025607869","DOIUrl":"10.1134/S0021364025607869","url":null,"abstract":"<p>We perform transport and noise measurements for device consisting of a thin NbSe<sub>2</sub> flake laid onto the predefined gold electrodes and covered with a thin hBN flake. In the shot noise of a NbSe<sub>2</sub>/Au tunnel junction, we identify Andreev reflection regime by demonstrating the effective charge doubling. Further, by creating temperature gradient across the tunnel junction and measuring its delta-<span>(T)</span> noise in the normal state, we extract electron–phonon scattering length in NbSe<sub>2</sub> and its <i>T</i>-dependence. The results of delta-<span>(T)</span> noise measurements in the absence of a magnetic field when the flake is superconducting are in qualitative agreement with expectations. The introduced approach is promising for the study of nonequilibrium configurations in superconductors.</p>","PeriodicalId":604,"journal":{"name":"JETP Letters","volume":"122 4","pages":"250 - 258"},"PeriodicalIF":1.3,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145204695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Heat Capacity of Dense Liquids: A Link Between Two-Phase Model and Melting Temperature Scaling 致密液体的热容：两相模型与熔化温度标度之间的联系
IF 1.3 4区 物理与天体物理
JETP Letters Pub Date : 2025-08-08 DOI: 10.1134/S0021364025607262
S. A. Khrapak, A. G. Khrapak
{"title":"Heat Capacity of Dense Liquids: A Link Between Two-Phase Model and Melting Temperature Scaling","authors":"S. A. Khrapak,&nbsp;A. G. Khrapak","doi":"10.1134/S0021364025607262","DOIUrl":"10.1134/S0021364025607262","url":null,"abstract":"<p>Generalized Rosenfeld–Tarazona scaling predicts the power-law dependence of the excess heat capacity of simple liquids on temperature. The two-phase model treats a liquid as a superposition of gas- and solid-like components whose relative abundance is quantified by a liquid rigidity parameter. We demonstrate here that the generalized Rosenfeld–Tarazona scaling emerges naturally in the two-phase model from the scale invariance of the liquid rigidity parameter.</p>","PeriodicalId":604,"journal":{"name":"JETP Letters","volume":"122 4","pages":"240 - 243"},"PeriodicalIF":1.3,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S0021364025607262.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145204696","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Topological Origin of Horizon Temperature via the Chern–Gauss–Bonnet Theorem 基于chen - gauss - bonnet定理的视界温度的拓扑起源
IF 1.3 4区 物理与天体物理
JETP Letters Pub Date : 2025-08-08 DOI: 10.1134/S0021364025607602
J. C. M. Hughes, F. V. Kusmartsev
{"title":"Topological Origin of Horizon Temperature via the Chern–Gauss–Bonnet Theorem","authors":"J. C. M. Hughes,&nbsp;F. V. Kusmartsev","doi":"10.1134/S0021364025607602","DOIUrl":"10.1134/S0021364025607602","url":null,"abstract":"<p>This paper establishes a connection between the Hawking temperature of spacetime horizons and global topological invariants, specifically the Euler characteristic of Wick-rotated Euclidean spacetimes. This is demonstrated for both de Sitter and Schwarzschild, where the compactification of the near-horizon geometry allows for a direct application of the Chern–Gauss–Bonnet theorem. For de Sitter, a simple argument connects the Gibbon–Hawking temperature of the Bunch–Davies state to the global thermal de Sitter temperature. This establishes that spacetime thermodynamics are a consequence of the geometrical structure of spacetime itself, therefore suggesting a deep connection between global topology and semi-classical analysis.</p>","PeriodicalId":604,"journal":{"name":"JETP Letters","volume":"122 4","pages":"208 - 214"},"PeriodicalIF":1.3,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S0021364025607602.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145204665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
System of a Quantum Memory in a 143Nd:Y7LiF4 Crystal and a Matching Single-Photon Source Based on Spontaneous Parametric Down-Conversion 基于自发参数下转换的143Nd:Y7LiF4晶体和匹配单光子源的量子记忆系统
IF 1.3 4区 物理与天体物理
JETP Letters Pub Date : 2025-07-31 DOI: 10.1134/S0021364025605925
R. A. Akhmedzhanov, L. A. Gushchin, I. V. Zelensky, I. Z. Latypov, V. A. Nizov, N. A. Nizov, D. A. Sobgayda
{"title":"System of a Quantum Memory in a 143Nd:Y7LiF4 Crystal and a Matching Single-Photon Source Based on Spontaneous Parametric Down-Conversion","authors":"R. A. Akhmedzhanov,&nbsp;L. A. Gushchin,&nbsp;I. V. Zelensky,&nbsp;I. Z. Latypov,&nbsp;V. A. Nizov,&nbsp;N. A. Nizov,&nbsp;D. A. Sobgayda","doi":"10.1134/S0021364025605925","DOIUrl":"10.1134/S0021364025605925","url":null,"abstract":"<p>The storage of a signal of a single-photon source based on spontaneous parametric down-conversion in a periodically poled MgO:PPLN crystal in a quantum memory based on an atomic frequency comb in an isotopically pure <span>(^{{{text{143}}}}{text{Nd}}{kern 1pt} {text{:}}{kern 1pt} {{{text{Y}}}^{{text{7}}}}{text{Li}}{{{text{F}}}_{{text{4}}}})</span> crystal has been demonstrated.</p>","PeriodicalId":604,"journal":{"name":"JETP Letters","volume":"121 12","pages":"927 - 931"},"PeriodicalIF":1.3,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S0021364025605925.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145171203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Generalization of a Photon Number Splitting Attack and the Efficiency of Its Application to a Subcarrier Wave Quantum Cryptography Protocol 光子数分裂攻击的推广及其在子载波量子密码协议中的应用效率
IF 1.3 4区 物理与天体物理
JETP Letters Pub Date : 2025-07-31 DOI: 10.1134/S002136402560658X
D. A. Kronberg
{"title":"Generalization of a Photon Number Splitting Attack and the Efficiency of Its Application to a Subcarrier Wave Quantum Cryptography Protocol","authors":"D. A. Kronberg","doi":"10.1134/S002136402560658X","DOIUrl":"10.1134/S002136402560658X","url":null,"abstract":"<p>Coherent state quantum cryptography protocols are of interest due to their easy implementation. However, the security proof of such protocols against all attacks can be tricky because of the attenuation in the communication channel that can be exploited by an eavesdropper. In this work, an attack on the subcarrier wave quantum cryptography protocol has been built, which generalizes the photon number splitting attack. The efficiency of the attack has been analyzed, in particular, for the case where the eavesdropper does not have quantum memory.</p>","PeriodicalId":604,"journal":{"name":"JETP Letters","volume":"121 12","pages":"932 - 941"},"PeriodicalIF":1.3,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S002136402560658X.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145171204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","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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