JETP Letters最新文献_第2页

Effect of the Tensile Strain on the Propagation of Longitudinal Elastic Waves in the Volume of an Amorphous Polymer 拉伸应变对纵向弹性波在非晶聚合物中传播的影响

IF 1.4 4区物理与天体物理

JETP Letters Pub Date : 2025-05-06 DOI: 10.1134/S0021364025605433

A. B. Volodarsky, E. S. Morokov, A. I. Kokshaysky, N. I. Odina, A. I. Korobov

引用次数: 0

Cascade Relaxation of the Gravitating Vacuum as a Generator of the Evolving Universe 作为演化宇宙发生器的引力真空级联弛豫

IF 1.4 4区物理与天体物理

JETP Letters Pub Date : 2025-05-06 DOI: 10.1134/S0021364024604718

V. N. Lukash, E. V. Mikheeva

{"title":"Cascade Relaxation of the Gravitating Vacuum as a Generator of the Evolving Universe","authors":"V. N. Lukash, E. V. Mikheeva","doi":"10.1134/S0021364024604718","DOIUrl":"10.1134/S0021364024604718","url":null,"abstract":"The cascade relaxation of a polarized vacuum in the expanding Universe is a chain of evolutionary epochs of decreasing its density with the exit of dominant fields (each in its own time) from the initial zero states to nonzero values, from the dominant scalar field in the early Universe to subsequent ones, including the Λ-term in the modern Universe. The cascade vacuum relaxation creates the entire observable cosmology from the Friedmann model with small perturbations of the metric with non-power-law power spectra from which primordial black holes could have arisen, and gravitational waves over a wide wavenumber range to the formation of dark matter and energy, early galaxies, supermassive black holes, and the large-scale structure of the Universe. An observational model of cascade vacuum relaxation in the early Universe has been constructed, which contains two constants determined by observational data and does not require information on the potential of the fields. A solution has been obtained for the general relativity vacuum attractor, including, in addition to the two previously mentioned constants, the third constant (not yet limited by observations), which leads to an additional power of density perturbations on a small scale (k > 10 Mpc–1) in the form of a “bump,” a two-power spectrum, etc.","PeriodicalId":604,"journal":{"name":"JETP Letters","volume":"121 6","pages":"399 - 410"},"PeriodicalIF":1.4,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S0021364024604718.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143913849","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

On the Key Search Complexity in Quantum Cryptography with Strong Information-Theoretic Authentication 强信息论认证量子密码中密钥搜索复杂度的研究

IF 1.4 4区物理与天体物理

JETP Letters Pub Date : 2025-05-06 DOI: 10.1134/S002136402460544X

S. P. Kulik, S. N. Molotkov

引用次数: 0

Resonance Fluorescence in a Three-Level Superconducting System with Resonant Bichromatic Pumping of Transitions 共振双色抽运跃迁的三能级超导系统中的共振荧光

IF 1.4 4区物理与天体物理

JETP Letters Pub Date : 2025-05-06 DOI: 10.1134/S0021364025600181

S. A. Gunin, A. V. Vasenin, V. V. Voskresenskii, A. Yu. Dmitriev, D. A. Kalacheva, Ya. T. Shneidman, T. R. Sabirov, G. P. Fedorov, O. V. Astafiev

引用次数: 0

Fractional Magnetic Breakdown Frequencies in Semiconductor Lattices with One-Dimensional Modulation 一维调制半导体晶格中的分数阶磁击穿频率

IF 1.4 4区物理与天体物理

JETP Letters Pub Date : 2025-05-06 DOI: 10.1134/S0021364024604640

O. A. Tkachenko, V. A. Tkachenko, D. G. Baksheev, Z. E. Krix, O. P. Sushkov

引用次数: 0

Effect of Magnetoelectric Nonreciprocity in the Submillimeter EPR Spectroscopy of LiYF4 Doped by 166Er3+ Ions 166Er3+离子掺杂LiYF4亚毫米EPR光谱中磁电非互易的影响

IF 1.4 4区物理与天体物理

JETP Letters Pub Date : 2025-05-06 DOI: 10.1134/S0021364024604895

M. V. Eremin, V. F. Tarasov

引用次数: 0

On the Increase in the Density of Primordial Black Holes in the Halos of Dwarf Galaxies 矮星系光晕中原始黑洞密度的增加

IF 1.4 4区物理与天体物理

JETP Letters Pub Date : 2025-04-21 DOI: 10.1134/S0021364024604664

S. V. Pilipenko, M. V. Tkachev, N. R. Arakelyan

引用次数: 0

Interaction between Charge Density Waves in the Monoclinic Phase of NbS3 NbS3单斜相中电荷密度波的相互作用

IF 1.4 4区物理与天体物理

JETP Letters Pub Date : 2025-04-21 DOI: 10.1134/S0021364025600156

V. Ya. Pokrovskii, A. L. Vasiliev, N. B. Bolotina, A. G. Ivanova, S. V. Zaitsev-Zotov, S. G. Zybtsev, A. A. Sinchenko

{"title":"Interaction between Charge Density Waves in the Monoclinic Phase of NbS3","authors":"V. Ya. Pokrovskii, A. L. Vasiliev, N. B. Bolotina, A. G. Ivanova, S. V. Zaitsev-Zotov, S. G. Zybtsev, A. A. Sinchenko","doi":"10.1134/S0021364025600156","DOIUrl":"10.1134/S0021364025600156","url":null,"abstract":"In the monoclinic polytype NbS3-II, the monoclinic b-axis of which coincides with the direction of greatest conductivity, two charge density waves (CDWs) have been observed at room temperature: CDW-0 with the wave vector q0 = 0.5a* + 0.352b* + 0.5c* and CDW-1 with the wave vector q1 = 0.5a* + 0.298b* + 0.5c*. X‑ray diffraction patterns obtained in the temperature range of 90–500 K have shown that the vectors q0 and q1 depend on the temperature, but their b* coordinates satisfy the relation (2q_{0}^{{{mathbf{b}}text{*}}}(T) + q_{1}^{{{mathbf{b}}text{*}}}(T) = {text{const}} = 1). It has been concluded that the wave vector q1 of CDW-1 is determined not only by the nesting of Fermi surfaces, but also by the vector q0, because CDW-1 is adjusted to the second harmonic of CDW-0, which indicates the interaction between charge density waves. This conclusion has been confirmed by structural studies of NbS3-II samples, the lattice of which is strongly deformed due to a high concentration of twins. In these samples, CDW-0 is conserved, and the wave vector of CDW-1 has the b* component not related to q0.","PeriodicalId":604,"journal":{"name":"JETP Letters","volume":"121 5","pages":"391 - 397"},"PeriodicalIF":1.4,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S0021364025600156.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143856433","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

Charge States of Single Quantum Dots in a Microcavity p–n–p Heterostructure with the Built-in Coulomb Blockade 内置库仑阻滞的微腔p-n-p异质结构中单量子点的电荷态

IF 1.4 4区物理与天体物理

JETP Letters Pub Date : 2025-04-21 DOI: 10.1134/S0021364024605359

A. I. Galimov, Yu. M. Serov, M. V. Rakhlin, G. V. Klimko, S. V. Sorokin, I. V. Sedova, M. M. Kulagina, Yu. M. Zadiranov, Yu. A. Salii, D. S. Berezina, S. I. Troshkov, T. V. Shubina, A. A. Toropov

{"title":"Charge States of Single Quantum Dots in a Microcavity p–n–p Heterostructure with the Built-in Coulomb Blockade","authors":"A. I. Galimov, Yu. M. Serov, M. V. Rakhlin, G. V. Klimko, S. V. Sorokin, I. V. Sedova, M. M. Kulagina, Yu. M. Zadiranov, Yu. A. Salii, D. S. Berezina, S. I. Troshkov, T. V. Shubina, A. A. Toropov","doi":"10.1134/S0021364024605359","DOIUrl":"10.1134/S0021364024605359","url":null,"abstract":"The charge state of single InAs/GaAs quantum dots in microcavity p–n–p heterostructures in the presence of built-in Coulomb blockade induced by a thin layer with the n-type conductivity located near quantum dots is studied. The optimal doping profile and thickness of layers in the heterostructure are determined analytically by solving the Poisson equation. The number and sign of carriers in a single quantum dot are determined by experimental studies of spin dynamics and statistics of single-photon radiation under resonant and quasi-resonant excitation. The possibility of obtaining neutral and positively and negatively charged quantum dots with a probability exceeding 90% is shown, which opens up new opportunities for the study of optical processes in single quantum dots and their application in quantum photonics.","PeriodicalId":604,"journal":{"name":"JETP Letters","volume":"121 5","pages":"365 - 371"},"PeriodicalIF":1.4,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S0021364024605359.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143856609","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

Erratum to: Slow Oscillations of the Transverse Magnetoresistance in HoTe3 校正：HoTe3中横向磁电阻的慢振荡

IF 1.4 4区物理与天体物理

JETP Letters Pub Date : 2025-04-21 DOI: 10.1134/S0021364025050017

S. V. Zaitsev-Zotov, P. D. Grigoriev, D. Voropaev, A. A. Morocho, I. A. Cohn, E. Pachoud, A. Hadj-Azzem, P. Monceau

引用次数: 0