JETP Letters最新文献_第3页

Molecular Dynamics Study of the Formation and Diffusion of H3CS–Au–SCH3 Complexes on the Au(111) and Ag(111) Surfaces H3CS-Au-SCH3配合物在Au（111）和Ag（111）表面形成和扩散的分子动力学研究

IF 1.1 4区物理与天体物理

JETP Letters Pub Date : 2026-10-01 DOI: 10.1134/S0021364026607402

A. G. Syromyatnikov, A. M. Saletsky, A. L. Klavsyuk

引用次数: 0

Radiation-Induced Defects in Electron-Irradiated Pure and Nitrogen-Doped High-Pressure High-Temperature Diamond: Decrease in the Thermal Conductivity 电子辐照纯和氮掺杂高压高温金刚石的辐射缺陷：热导率的降低

IF 1.1 4区物理与天体物理

JETP Letters Pub Date : 2026-10-01 DOI: 10.1134/S0021364026607128

A. V. Inyushkin, A. N. Taldenkov, D. A. Chernodubov, A. P. Yelisseyev, V. G. Vins

{"title":"Radiation-Induced Defects in Electron-Irradiated Pure and Nitrogen-Doped High-Pressure High-Temperature Diamond: Decrease in the Thermal Conductivity","authors":"A. V. Inyushkin, A. N. Taldenkov, D. A. Chernodubov, A. P. Yelisseyev, V. G. Vins","doi":"10.1134/S0021364026607128","DOIUrl":"10.1134/S0021364026607128","url":null,"abstract":"The effect of 3-MeV electron irradiation at a fluence of 5 × 1018 cm–2 on the thermal conductivity κ(T) of type IIa and type Ib high-pressure high-temperature diamond single crystals with nitrogen concentrations of less than 1 ppm and approximately 70 ppm, respectively, has been studied. Irradiation reduces the thermal conductivity κ(T) over the entire studied temperature range 5 K < T < 410 K. For pure diamond, the strongest decrease in κ(T) by a factor of 350 is observed at 25–30 K, but the thermal conductivity κ(T) at room temperature T = 300 K decreases by a factor of only 1.56. Compared to pure diamond, the thermal conductivity of irradiated doped diamond decreases much less strongly at low temperatures, but more strongly at T > 140 K. After irradiation, the difference in the reduction of the thermal conductivity between the two types of diamond is so large that κ(T) for doped diamond is larger than that for pure diamond at T < 50 K and is an order of magnitude larger at 5 K. Experimental data allow the assumption that the rate of phonon scattering by neutral radiation defects—vacancies, their aggregates, and Frenkel pairs (pairs of interacting interstitial atoms and vacancies)—in pure diamond is much higher than that by such negatively charged defects in nitrogen-doped diamond at low temperatures. However, the ratio of scattering rates becomes inverse at high temperatures.","PeriodicalId":604,"journal":{"name":"JETP Letters","volume":"124 4","pages":"281 - 290"},"PeriodicalIF":1.1,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149097964","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

Thermodynamics of Homogeneous Universes: de Sitter, Bonnor–Melvin, and Static Einstein 均匀宇宙的热力学：de Sitter， Bonnor-Melvin和静态爱因斯坦

IF 1.1 4区物理与天体物理

JETP Letters Pub Date : 2026-09-14 DOI: 10.1134/S0021364026606950

G. E. Volovik

引用次数: 0

Some Features of High-Temperature Superconductivity on Flat Bands 平带上高温超导的一些特性

IF 1.1 4区物理与天体物理

JETP Letters Pub Date : 2026-09-14 DOI: 10.1134/S0021364026608067

V. R. Shaginyan, A. Z. Msezane, S. A. Artamonov

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The Encke and Keeler Gaps as Chirikov–Wisdom Effects Encke和Keeler缺口作为Chirikov-Wisdom效应

IF 1.1 4区物理与天体物理

JETP Letters Pub Date : 2026-09-14 DOI: 10.1134/S0021364026607633

I. I. Shevchenko, S. A. Drobchik

引用次数: 0

Unidimensional-Modulation Continuous-Variable Quantum Key Distribution Under Light-Injection Attacks 光注入攻击下的一维调制连续变量量子密钥分配

IF 1.1 4区物理与天体物理

JETP Letters Pub Date : 2026-09-14 DOI: 10.1134/S0021364026608298

P. Wang, J. Liang, Z. Bai, L. Chang

{"title":"Unidimensional-Modulation Continuous-Variable Quantum Key Distribution Under Light-Injection Attacks","authors":"P. Wang, J. Liang, Z. Bai, L. Chang","doi":"10.1134/S0021364026608298","DOIUrl":"10.1134/S0021364026608298","url":null,"abstract":"Unidimensional-modulation continuous-variable quantum key distribution has received considerable attention due to its simplified transmitter architecture, reduced random-number consumption, and low deployment cost. However, its security against source-side light-injection attacks remains unexplored. In this paper, the effects of such attacks on unidimensional-modulation continuous-variable quantum key distribution systems are systematically investigated. A theoretical model of quantum-state preparation at the transmitter under light-injection attacks is established, parameter estimation bias formulas are derived, the resulting degradation in the secret key rate is quantified, and the theoretical results are validated through numerical simulations. In addition, the security implications of light-injection attacks in the finite-size regime are examined. The results demonstrate that light-injection attacks cause overestimation of the channel transmittance and underestimation of excess noise. Under finite-size conditions, these attacks reduce the minimum data-block length required to achieve a positive secret key rate, thereby creating a false indication of security even when no secure key can actually be generated. These findings demonstrate that light-injection attacks constitute a serious threat to unidimensional-modulation continuous-variable quantum key distribution systems and provide an important theoretical foundation for future secure practical deployment.","PeriodicalId":604,"journal":{"name":"JETP Letters","volume":"124 6","pages":"481 - 490"},"PeriodicalIF":1.1,"publicationDate":"2026-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149310269","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

NMR Evidence of Tomonaga–Luttinger Liquid Behavior in Lednevite Mineral Cu[PO3(OH)] ⋅ H2O 铜[PO3(OH)]⋅H2O中Tomonaga-Luttinger液体行为的核磁共振证据

IF 1.1 4区物理与天体物理

JETP Letters Pub Date : 2026-09-14 DOI: 10.1134/S0021364026608146

S. V. Zhurenko, A. V. Tkachev, K. S. Pervakov, Al. A. Gippius, A. A. Gippius

引用次数: 0

Laser-Controlled Polarization Effects in High-Harmonic Generation from Zero-Dimensional Nanostructures 零维纳米结构高谐波产生中的激光控制极化效应

IF 1.1 4区物理与天体物理

JETP Letters Pub Date : 2026-09-09 DOI: 10.1134/S0021364026607153

A. G. Ghazaryan, Kh. V. Sedrakian

引用次数: 0

Anomalous Hall Effect in Epitaxially Strained Thin Films of Strontium Iridate 外延应变铱酸锶薄膜中的反常霍尔效应

IF 1.1 4区物理与天体物理

JETP Letters Pub Date : 2026-09-09 DOI: 10.1134/S0021364026607396

G. D. Ul’ev, G. A. Ovsyannikov, K. I. Konstantinyan, A. M. Petrzhik, A. V. Mashirov

{"title":"Anomalous Hall Effect in Epitaxially Strained Thin Films of Strontium Iridate","authors":"G. D. Ul’ev, G. A. Ovsyannikov, K. I. Konstantinyan, A. M. Petrzhik, A. V. Mashirov","doi":"10.1134/S0021364026607396","DOIUrl":"10.1134/S0021364026607396","url":null,"abstract":"Low-temperature magnetotransport of thin epitaxial films of the topological semimetal SrIrO3 grown on (110)Pb(Mg1/3Nb2/3)O3–PbTiO3 (PMN–PT) and (001)SrTiO3 substrates, which induce tensile (ε = +1.5%) and compressive (ε = –1.4%) strains, respectively, has been studied. An anomalous Hall effect, which is caused by the presence of Jeff = 1/2 states in the electronic spectrum of the Berry curvature, has been detected in both films. The anomalous Hall effect has been observed for the first time in the SrIrO3/PMN–PT film, where the epitaxial strain changes the sign of the Hall coefficient and significantly increases the anomalous Hall conductivity compared to the SrIrO3/SrTiO3 film. The behaviors of the magnetoresistance in the SrIrO3/SrTiO3 and SrIrO3/PMN–PT films are qualitatively different. In the former film, the magnetoresistance is negative, has a magnitude of 3.3%, exhibits a V-shaped magnetic field dependence, and is described by a superposition of weak localization and a classical orbital background proportional to the square of the external magnetic field. In the latter film, the conductivity film exhibits a peak at zero external field, which is typical of weak antilocalization. Approximation of the magnetic-field dependence of the film resistance using the Maekawa–Fukuyama model with a quadratic magnetic field background yields a dephasing length of Lφ = 10–40 nm and a dephasing exponent of p ≈ 1, which corresponds to a two-dimensional Coulomb interaction between electrons. The sign of the epitaxial strain determines the type of quantum corrections to the conductivity (weak antilocalization or localization) and the magnitude of the anomalous Hall effect.","PeriodicalId":604,"journal":{"name":"JETP Letters","volume":"124 3","pages":"210 - 217"},"PeriodicalIF":1.1,"publicationDate":"2026-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S0021364026607396.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148909739","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

Influence of the Zeeman Effect on the Quantum 3D–2D Crossover in Layered Conductors 塞曼效应对层状导体中量子3D-2D交叉的影响

IF 1.1 4区物理与天体物理

JETP Letters Pub Date : 2026-09-09 DOI: 10.1134/S0021364026606895

S. Sh. Rekhviashvili

引用次数: 0