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Тезисы 58-й научной конференции МФТИ
МФТИ, 2015.
Chapters
Fedyanin D., В кн.: Тезисы 58-й научной конференции МФТИ.: МФТИ, 2015.
С начала XXI века в научной среде не ослабевает интерес к социальным сетям. Это относительно новый, но важный объект сследования. Модели, описывающие поведение пользователей в социальных сетях, по-видимому, смогут иметь много применений : от продвижении товаров и услуг на рынке, до выявления и нейтрализации террористических групп. Одной из широко используемых в научных исследованиях моделей является ...
Added: June 3, 2018
Keywords: квантовая физика
Гущина В. А., / Series chemrxiv-2023-vpzhz-v2 "ChemRxiv". 2023.
All-inorganic perovskite CsPbBr3 and Cs4PbBr6 nanoparticles are being intensively studied due to their unique properties and wide range of applications; however, however, the nature of their optical properties is not yet fully understood due to the difficulty of synthesis of singlephase nanoparticles. In this article we describe the features of the synthesis of single-phase particles ...
Added: May 14, 2026
Pilé I., Deng Y., Shchur L., / Series arXiv "math". 2026. No. 2604.10254.
We investigate the spatial overlap of successive spin configurations in Markov chain Monte Carlo simulations using the local Metropolis algorithm and the Svendsen-Wang and Wolff cluster algorithms. We examine the dynamics of these algorithms for two models in different universality classes: the Ising model and the Potts model with three components. The overlap of two ...
Added: April 20, 2026
Kagan M., Silkin V. M., Efremov D. V., / Series arXiv "math". 2024. No. 2411.12836.
In this study, we analyze the dielectric function of high-Tc cuprates as a function of doping level, taking into account the full energy band dispersion within the CuO2 monolayer. In addition to the conventional two-dimensional (2D) gapless plasmon mode, our findings reveal the existence of three anomalous branches within the plasmon spectrum. Two of these branches ...
Added: November 27, 2024
Influence of anisotropy on the study of critical behavior of spin models by machine learning methods
Sukhoverkhova D., Shchur L., / Series arXiv "math". 2024. No. 2410.14523.
In this paper, we applied a deep neural network to study the issue of knowledge transferability between statistical mechanics models. The following computer experiment was conducted. A convolutional neural network was trained to solve the problem of binary classification of snapshots of the Ising model's spin configuration on a two-dimensional lattice. During testing, snapshots of ...
Added: October 21, 2024
Mozolenko V., Fadeeva Marina, Shchur L., / Series arXiv "math". 2024. No. 2405.10865.
The development of new algorithms for simulations in physics is as important as the development of new analytical methods. In this paper we present a comparison of the recently developed microcanonical population annealing (MCPA) algorithm with the rather mature Wang-Landau algorithm. The comparison is performed on two cases of the Potts model exhibiting a first ...
Added: May 20, 2024
Kagan M., Аксёнов С. В., / Series Research Square "Research Suqare". 2024. No. 1.
We study different resonances (first of all of the Fano type) in the interference device formed by the Aharonov-Bohm ring with superconducting (SC) wire in the topologically nontrivial state playing a role of a bridge between top and bottom arms. We analyze Majorana modes on the ends of the SC wire and show that the collapse of the ...
Added: April 10, 2024
Ребров Я. В., Glazkov V., Murtazoev A. F. et al., / Series cond-mat "arxiv.org". 2023.
Nabokoite family compounds ACu7(TeO4)(SO4)5Cl (A=Na, K, Cs, Rb) are one of the candidates for the evasive spin-liquid state predicted for highly-frustrated square kagome lattice (SKL). Their magnetic subsystem includes SKL layers decorated by additional copper ions. All members of this family are characterized by quite high Curie-Weiss temperatures (∼80−200 K), but magnetic ordering was reported ...
Added: January 29, 2024
Shurakov A., Kaurova N., Belikov I. et al., / Series Physics "arxiv.org". 2022.
In this paper, we report on the method of nondestructive quality control that can be used in fabrication of GaAs high-speed electronics. The method relies on the surface potential mapping and enables rigid in vivo analysis of transport properties of an active electronic device incorporated into a complex integrated circuit. The study is inspired by ...
Added: September 15, 2023
Pugach N., Safonchik M. O., Belotelov V. et al., / Series "cond-mat". 2022. No. 2110.00369.
A detailed investigation of a superconducting spin-triplet valve is presented. This spin-valve consists of a superconducting film covering a metal with an intrinsic spiral magnetic order, which could result from competing isotropic exchanges or, if the crystal lattice breaks central symmetry, from asymmetric Dzyaloshinskii-Moriya exchange. Depending on the anisotropy, such a metal may change its ...
Added: November 16, 2022
Novikov S. V., / Series cond-mat "arxiv.org". 2022. No. 2209.14955.
Charge transport in amorphous semiconductors having spatially correlated exponential density of states (DOS) has been considered for the arbitrary behavior of the correlation function of random energies. Average carrier velocity is exactly calculated for the quasi-equilibrium (nondispersive) transport regime. For the symmetric exponential DOS with exponential tails for low and high energies and non-positive correlation ...
Added: November 1, 2022
Ikhsanov R., Mazur E., Kagan M., / Series "Working papers by Cornell University". 2022. No. 2202.01452.
At present, the task of searching for compounds with a high superconducting transition temperature is a very relevant scientific direction. Usually, the calculation of is carried out by numerically solving the system of Eliashberg equations. In this paper, a set of programs for solving this system written in various forms on the imaginary axis is ...
Added: February 4, 2022
Шапиро Д. С., Scientific Reports 2021 Vol. 11 No. 1 Article 8328
Under nonequilibrium conditions, quantum optical systems reveal unusual properties that might
be distinct from those in condensed matter. The fundamental reason is that photonic eigenstates
can have arbitrary occupation numbers, whereas in electronic systems these are limited by the Pauli principle. Here, we address the steady-state transport of pseudothermal photons between two waveguides connected through a cavity ...
Added: October 31, 2021
Budkov Y., Zavarzin S., Kolesnikov A. L., Journal of Physical Chemistry C 2021 Vol. 125 No. 38 P. 21151–21159
We formulate a general mean-field theory for a flat electric double layer in ionic liquids and electrolyte solutions with ions possessing static polarizability and a permanent dipole moment on a charged electrode. We establish a new analytical expression for electric double-layer differential capacitance, determining it as an absolute value of the ratio of the local ...
Added: September 16, 2021
Sanina N., Isaeva U., Utenyshev A. et al., Inorganica Chimica Acta 2021 Vol. 527 Article 120559
A new inhibitor of phosphodiesterase (PDE), i.e., nitric oxide (NO) donor, a water soluble DNIC Na[Fe(C7H5N4S)2(NO)2]⋅2.5H2O (1), has been synthesized. The structure of the new complex, its physical-chemical properties in the solid state and in solutions have been studied experimentally (X-ray analysis, IR, UV-Vis, Mossbauer spectroscopy, mass-spectrometry, and amperometry) and theoretically (quantum-chemical modeling by DFT ...
Added: September 16, 2021
Maslov V., Теоретическая и математическая физика 2021 Т. 206 № 3 С. 448–452
We consider the construction of asymptotic solutions of linear equations related to equations of classical mechanics: the Hamilton–Jacobi equation and the transport equation. We show that these methods and also the theory of the mechanics of an infinitely narrow beam as a whole can be applied to some objects in bioenergy if the thin organic ...
Added: July 14, 2021
Севальников А. Ю., Рыбакова И. А., Жаров С. Н. et al., М.: Издательская группа URSS, 2021.
The book is devoted to the problem of time. It examines both traditional and completely new concepts of time. The relevance of the topic is due to modern discoveries in the field of confirming the fundamental foundations of quantum mechanics, namely, experiments to check the Legetta-Garg inequalities, experiments with a "quantum eraser that confirm the ...
Added: September 27, 2020
Гаварина С. И., Попов Ю. Л., В кн.: МЕЖВУЗОВСКАЯ НАУЧНО-ТЕХНИЧЕСКАЯ КОНФЕРЕНЦИЯ СТУДЕНТОВ, АСПИРАНТОВ И МОЛОДЫХ СПЕЦИАЛИСТОВ ИМ. Е.В. АРМЕНСКОГО. Москва, 2019.: МИЭМ НИУ ВШЭ, 2019. С. 7–8.
В работе были исследовано влияние спина на систему двух взаимодействующих ферронов со спинами S=3/2, S=5/2, S=7/2 на температурную зависимость теплоемкости и магнитной восприимчивости в холдейновской магнитной системе с спином S=1. ...
Added: December 7, 2019
Гилязова А. А., Губанов Д. А., Fedyanin D., МФТИ, 2016.
В работе исследуются характеристики графов большого размера (четверть миллиона узлов), построенных по алгоритму с отсевом активных пользователей, и проводится сравнение с параметрами русскоязычного активного сегмента онлайновой социальной сети Facebook. ...
Added: June 2, 2018
Trofimova T., М.: КноРус, 2016.
Охватывает все разделы курса физики средней школы и содержит справочный материал, с помощью которого читатель может восстановить в памяти необходимые определения, законы и формулы, Каждая статья представляет собой краткий конспект ответа на соответствующий вопрос курса. Может быть эффективно использовано при подготовке к зачетам и экзаменам, при решении задач, для систематизации знаний по физике.
Для учащихся средний ...
Added: December 29, 2015
Trofimova T., М.: КноРус, 2015.
В книге в краткой и доступной форме дается изложение курса физики. В конце каждого раздела приводятся примеры решения задач. Приложения содержат определения основных и производных единиц физических величин, основные формулы для решения задач и другие справочные материалы. Для студентов вузов, а также для учащихся при самостоятельной подготовки к зачетам, контрольным и проверочным работам. ...
Added: November 30, 2015
Trofimova T., М.: Издательский центр «Академия», 2015.
Учебное пособие создано в соответствии с Федеральным образовательным стандартом по техническим направлениям подготовки (квалификация бакалавр). Пособие содержит разбор решений наиболее типичных задач по всем основным разделам физики с кратким изложением теоретического материала, предусмотренного программой курса физики для бакалавров, а также задачи для самостоятельного решения. Составляет учебный комплект для бакалавров с учебником «Физика» (автор – Трофимова ...
Added: October 29, 2015
Trofimova T., М.: Издательский центр «Академия», 2015.
Учебное пособие создано в соответствии с Федеральным образовательным стандартом по техническим направлениям подготовки (квалификация бакалавр). Пособие содержит решение всех задач, приведенных в пособии «Физика. Задачи» для высшего образования (бакалавриат) в разделе «Задачи для самостоятельного решения». Подробное изложение теоретического материала можно найти в учебнике «Физика», а примеры решения задач – в учебном пособии «Физика. Задачи», составляющих ...
Added: October 29, 2015
Trofimova T., Фирсов А. В., М.: Издательский центр «Академия», 2015.
В пособие включены решения всех задач из книги Трофимовой Т.И. и Фирсова А.В. «Физика для профессий и специальностей технического и естественно-научного профилей. Сборник задач». Задачи решены однотипно: краткая запись условия, перевод данных в СИ, необходимые уравнения, их решения в общем виде, подстановка числовых значений в конечную формулу, проверка размерности, запись ответа. Представлены задачи различной степени ...
Added: May 25, 2015
Andrew G. Semenov, / Series cond-mat "arxiv.org". 2013.
In this letter the phenomenon of macroscopic quantization is investigated using the particle on the ring interacting with the dissipative environment as an example. It is shown that the phenomenon of macroscopic quantization has the clear physical origin in that case. It follows from the angular momentum conservation combined with momentum quantization for bare particle ...
Added: February 9, 2015