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News
October 14, 2026
At HSE University–St Petersburg, Experts Discuss How AI Changes Tourist Routes and Cultural Heritage
Neural networks are no longer simple travel assistants; now they decide what to include on the route and what to skip. Artificial intelligence changes how people perceive a place and shapes the image of tourist centres. At the II International Scientific and Practical Conference ’Information Technologies in the Preservation and Promotion of Cultural Heritage,’ researchers discussed who controls algorithmic solutions and in what ways, and whether authentic traditions get lost in them.
October 12, 2026
Road Injuries Leading Cause of Death Among Men Aged 10 to 39
Worldwide, road injuries are the leading cause of death among males aged 10–39. An international team of researchers reached this conclusion as part of the Global Burden of Disease Study 2023, analysing data from 204 countries between 1990 and 2023. Their findings have been published in The Lancet Public Health, with HSE University Professor Vasily Vlassov listed among the collaborators.
October 8, 2026
HSE Experts Take Part in 23rd Annual Meeting of Valdai Discussion Club
The 23rd Annual Meeting of the Valdai Discussion Club was held from September 28 to October 1, 2026 under the theme ‘Responsibility for the Future: Limits of the Possible, or Limitless Possibilities?’ The forum brought together 120 experts from 40 countries, including representatives of China, the United States, India, Brazil, the United Kingdom, Germany, Egypt, Iran, and Japan.

 

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Управление спиновой динамикой в двойной квантовой точке в условиях электрического дипольного спинового резонанса через перестраиваемое спин-орбитальное взаимодействие

Физика и техника полупроводников. 2024. Т. 58. № 4. С. 173–178.
Denis K., Запруднов Н. А.
Research target: Physics Nanotechnologies
Language: Russian
DOI
Text on another site
Keywords: электронный спиновый резонансспин-орбитальное взаимодействиедвойная квантовая точка
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Numerous studies have provided compelling evidence that the probability distribution of avalanche sizes follows a power law, and that 1/f noise is present in the stochastic dynamics of landslides. We present a theoretical explanation of these phenomena within the framework of self-organized criticality theory, proposing a discrete-time model in the form of a sandpile cellular ...
Added: October 13, 2026
Sandpile Cellular Automata with Manna Rule on the Chung-Lu Graph: Application to X Social Network
Dmitriev A., Shulman I., Lebedev A., Studies in Computational Intelligence 2026 Vol. 1265 P. 266–273
A discrete-time model is presented for the self-organization of the X/Twitter social network to the edge of a phase transition, characterized by avalanche-like propagation of information in the network. The model is based on the analogy between the critical dynamics of the X social network and sandpile cellular automata with Manna rule on the Chung-Lu ...
Added: October 13, 2026
Неравновесное состояние в квазиодномерных сверхпроводящих каналах
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Superconducting properties of metallic micro- and nanowires can be entirely different from those of bulk superconductors. Of particular interest is the nonequilibrium current-induced state of a quasi-one-dimensional superconducting channel. The most interesting phenomenon here is the stepped I–V characteristic, explained by a process known as phase slip center activation. If the origin of such step-like ...
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When universal machine learning models fail in capacitance prediction for carbon-based supercapacitors: Leakage-aware validation and electrolyte screening
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Machine learning (ML) has become a powerful tool for accelerating the development of carbon-based supercapacitors; however, most published models assume that a single predictive framework can describe both conventional porous carbons and hybrid carbon electrodes. Here, we test this assumption using a comprehensive benchmark dataset and an extended literature-curated dataset enriched with synthesis- and electrolyte-related descriptors. Three ML algorithms ...
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Ranging Precision Comparison of Direct and Non-Line-of-Sight LiDAR Systems Based on SNSPD
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This paper compares the ranging precision of direct time-of-flight (dToF) and non-line-of-sight (NLOS) LiDAR architectures, both using a superconducting nanowire single-photon detector (SNSPD). Both systems operate at 1550 nm with a 50 ps pulsed laser and time-correlated single-photon counting (TCSPC). The dToF configuration achieved approximately 100 µm precision at 10 m, while the NLOS configuration achieved 500 µm precision for ...
Added: October 12, 2026
Proceedings of the 34th IUPAP Conference on Computational Physics: CCP2023, August 4-8, Kobe, Japan
Singapore: Springer, 2026.
This volume presents the Proceedings of the 34th IUPAP Conference on Computational Physics (CCP2023), held in Kobe, Japan on August 4–8, 2023. It offers a collection of peer-reviewed articles that highlight recent developments in computational and simulation research across various areas of physics. Key topics include the use of data science, quantum computing, and machine ...
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Effect of External Pressure and Quantum State on the Local Magnetization of Germanium Layers: Ab Initio Calculation.
Goncharov A., Chibisov A., Advanced Theory and Simulations 2023 Vol. 12 No. 13 Article 2200816
Designing stable quantum computers with the ability to correct errors responsibly requires a detailed understanding of the physical processes that underlie these devices. In this study, detailed quantum mechanical simulations of the atomic structure, charge distribution of electron density, and distribution and orientation of magnetic and quantum states as a function of applied external pressure ...
Added: October 11, 2026
Спин-зависимое туннелирование в двойной квантовой точке в режиме "медленной" эволюции
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Исследована динамика туннелирования и спина для дырочных состояний в двойной квантовой точке на основе GaAs при наличии сильного спин-орбитального взаимодействия и периодического электрического поля. Рассмотрены режимы туннелирования с переворотом спина в условиях "медленной" эволюции, при которой частота поля меньше остальных энергетических параметров стационарной части гамильтониана. Обнаружено, что в таких условиях туннелирование с переворотом спина может ...
Added: September 6, 2026
Формирование связанных состояний и управление их локализацией в двойной квантовой точке на крае двумерного топологического изолятора с магнитными барьерами
Denis K., Лаврухина Е. А., Тележников А. В., Физика и техника полупроводников 2023 Т. 57 № 7 С. 551–554
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Added: September 6, 2026
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Исследованы методы управления пространственной локализацией и спиновой поляризацией состояний в модели двойной квантовой точки на крае топологического изолятора на основе квантовой ямы HgTe/CdTe, сформированной тремя магнитными барьерами. Обнаружены переходы в спектре под действием резонансного электрического поля, для которых начальные и конечные состояния отвечают различной пространственной локализации либо определенному знаку выбранной спиновой проекции. На их основе ...
Added: September 6, 2026
Управление динамикой спина в двойной полупроводниковой квантовой точке с помощью бигармонического электрического поля
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Рассматривается задача о динамике туннелирования и переворота спина электрона под действием бигармонического электрического поля, приложенного к двойной квантовой точке на основе арсенида галлия с сильным спин-орбитальным взаимодействием. При настройке частоты первой гармоники на зеемановское расщепление в одной точке и частоты второй гармоники на разность потенциальных энергий в соседних точках для определенных амплитуд гармоник наблюдаются два ...
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ЛЗШМ- и ЭДСР-интерферометрии и одноэлектронная динамика в двойной квантовой точке на краю топологического изолятора с магнитными барьерами
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Added: September 6, 2026
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A phase transition accompanied by the appearance of a spike in the longitudinal resistance of a two-dimensional electron system has been studied using the electron spin resonance near the filling factor ν = 3 in the ZnO/MgZnO heterojunction. This transition occurs when the tilt angle θ of the magnetic field is increased to some critical ...
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We present the study of low-frequency dynamics of LiCu3⁢O3—an antiferromagnet on a strongly depleted square lattice. The crystal structure contains two types of square planes with different Li+→Cu2+ substitution rates (20% and 40%). Recent nuclear magnetic resonance (NMR), magnetization measurements and neutron scattering experiments revealed the occurrence of antiferromagnetic order at 𝑇𝑐⁢1=123K and the change ...
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We study an interplay between the orbital degeneracy and the spin-orbit coupling (SOC) giving rise to spin-orbital entangled states in concentrated systems (cooperative Jahn-Teller [JT] effect). As a specific example, we analyze the interaction of electrons occupying triply degenerate single-ion t_2g levels with trigonal vibrations (the t⊗T problem). A more general problem of the electron–lattice interaction involving both tetragonal ...
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Effects of a single impurity in a Luttinger liquid with spin–orbit coupling
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Anomalous spin resonance around even fillings in the quantum Hall regime
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The electron spin resonance (ESR) of two-dimensional electrons with large effective mass was studied experimentally near even filling factors of the integer quantum Hall effect. Surprisingly, the electron spin resonance did not vanish at the exact even fillings even in the case of large electron densities, where the ground state of the system was previously ...
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Dynamics of multiferroic LiCuVO4 influenced by electric field
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We present the electron spin resonance study of the influence of an electric field on the low-field multiferroic magnetic state in LiCuVO4. The shift of the magnetic resonance spectra in the electric field has been observed experimentally. Symmetry analysis has been performed in order to describe the static properties of the magnetic system. The low-frequency dynamics ...
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Magnetic topological semimetals (MTSs) are quantum materials highly desirable for spintronics. We report the synthesis, the crystal structure, the chemical bonding analysis, the magneto(transport) properties, and the bulk and surface electronic structures of GdBiTe. It is a high-Z isostructural analogue of the archetypical nodal-line TS ZrSiS and a recently discovered MTS LnSbTe (Ln = Ce, ...
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Added: March 16, 2021
Magnon spectrum and electron spin resonance in antiferromagnet with large single-ion easy plane anisotropy
Sherbakov A., Oleg I. Utesov, Journal of Magnetism and Magnetic Materials 2021 Vol. 518 P. 167390
Motivated by recent experiments on quantum magnet NiCl2-4SC(NH2)2 (DTN) and its Br-doped counterpart DTNX we propose a theoretical description of optical magnon branch in the antiferromagnet with large single-ion anisotropy in the magnetically ordered phase. In the framework of the 1/S expansion we derive analytical expressions for optical magnon with \bf{k} = 0 energy magnetic field dependence ...
Added: January 15, 2021
Electron spin resonance in a model S=1/2 chain antiferromagnet with a uniform Dzyaloshinskii-Moriya interaction
Smirnov A., Soldatov T. A., Povarov K. Y. et al., Physical Review B: Condensed Matter and Materials Physics 2015 Vol. 92 P. 134417
The electron spin resonance spectrum of a quasi-1D S=1/2 antiferromagnet K2CuSO4Br2 was found to demonstrate an energy gap and a doublet of resonance lines in a wide temperature range between the Curie-Weiss and Neèl temperatures. This type of magnetic resonance absorption corresponds well to the two-spinon continuum of excitations in S=1/2 antiferromagnetic spin chain with ...
Added: October 22, 2016
High-field magnetic resonance of spinons and magnons in the triangular lattice S=1/2 antiferromagnet Cs2CuCl4
Smirnov A., Soldatov T. A., Povarov K. Y. et al., Physical Review B: Condensed Matter and Materials Physics 2015 Vol. 91 P. 174412
The electron spin resonance doublet indicating the width of the two-spinon continuum in a spin-12 triangular lattice Heisenberg antiferromagnet Cs2CuCl4 was studied in high magnetic field. The doublet was found to collapse in a magnetic field of one-half of the saturation field. The collapse of the doublet occurs via vanishing of the high-frequency component in ...
Added: October 22, 2016
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