Персона:
Хлопов, Максим Юрьевич

Организационные подразделения

Организационная единица

Цель ИЯФиТ и стратегия развития - создание и развитие научно-образовательного центра мирового уровня в области ядерной физики и технологий, радиационного материаловедения, физики элементарных частиц, астрофизики и космофизики.

Фамилия

Хлопов

Имя

Максим Юрьевич

Полная страница элемента

Результаты поиска

Теперь показываю 1 - 10 из 111

Только метаданные
An Eccentric Binary Blackhole in Post-Newtonian Theory
(2022) Chowdhury, S. R.; Khlopov, M.; Хлопов, Максим Юрьевич
© 2022 by the authors. Licensee MDPI, Basel, Switzerland.Gravitational waves radiated during binary black hole coalescence are a perfect probe for studying the characteristics of strong gravity. Advanced techniques for creating numerical relativity substitute models for eccentric binary black hole systems are presumed to be crucial in existing and anticipated gravitational wave detectors. The imprint on the observation data of the gravitational wave emitted by the binary coalescence enhances two-body system studies. The aim of this study is to present an overview of the change in characteristic behaviors of hierarchical massive astrophysical objects merger, which are the databank of the early universe. We present results from numerical relativity simulations of an equal-mass and unequal mass nonspinning inspiral binary-black-hole system in the Post-Newtonian framework. We also consider the time evolution of eccentricity for an initial eccentric system. The eccentric Post-Newtonian equations are expanded in the form of the frequency related variable x = (Mω)2/3. The model is restricted to the (2, 2) spin-weighted spherical harmonic modes. We conclude that for higher eccentricity as well as mass ratio, there is higher oscillation in orbital radius and in eccentricity.
Только метаданные
Virtual Institute of Astroparticle physics as the online platform for studies of BSM physics and cosmology
(2022) Khlopov, M.; Хлопов, Максим Юрьевич
Только метаданные
Virtual Institute of Astroparticle physics as the online support for studies of BSM physics and cosmology
(2023) Khlopov, M.; Хлопов, Максим Юрьевич
Только метаданные
Quantum-mechanical numerical model of interaction between dark atom and nucleus of substance
(2024) Bikbaev, T. E.; Khlopov, M. Yu.; Mayorov, A. G.; Хлопов, Максим Юрьевич; Майоров, Андрей Георгиевич
Только метаданные
Compact stellar models in modified gravity
(2021) Salako, I. G.; Ranjit, C.; Ray, S.; Mukhopadhyay, U.; Khlopov, M.; Хлопов, Максим Юрьевич
© 2021 World Scientific Publishing Company.In the present investigation, compact stellar models are dealt with in the framework of the modified gravity theory, specifically of f(,) type. We have considered that the compact objects are following a spherically symmetric static metric and obtained the Einstein field equations in the spacetime of f(,). To make the Einstein equations solvable, we employ the methodology of conformal Killing vectors. Thereafter by using the MIT bag equation of state to the compact stars, considering that the stars are formed by strange quark, we find the solutions set. The solutions are examined via several physical testings which exhibit viability of the model.
Только метаданные
Open questions of BSM Cosmology
(2024) Khlopov, M. Y.; Хлопов, Максим Юрьевич
Только метаданные
Virtual Institute of Astroparticle physics as the online support for studies of BSM physics and cosmology
(2024) Khlopov, M.; Хлопов, Максим Юрьевич
Только метаданные
Analyses of Specific Aspects of the Evolution of Antimatter Glubular Clusters Domains
(2021) Lecian, O. M.; Khlopov, M. Y.; Хлопов, Максим Юрьевич
© 2021, Pleiades Publishing, Ltd.Abstract: In the Affleck–Dine–Linde scenario of baryosynthesis, there exists a possibility of creation of sufficiently large regions with antibaryon excess, which can evolve in antimatter globular clusters only in the result of domain evolution and only at the stage of galaxy formation; their number is demonstrated to increase as a function of time, being determined by the mechanism of antibaryon excess generation and on the properties of the inflaton field and related ones, the Hubble-parameter function at the inflationary stage, as well as the field initial conditions in the Einstein field Equations. Possible discovery of antimatter globular clusters would specify the mechanisms of inflation, baryosynthesis and evolution of antibaryon domains in a baryon-asymmetrical Universe.
Только метаданные
Baryon-Antibaryon Annihilation in the Evolution of Antimatter Domains in Baryon-Asymmetric Universe
(2021) Khlopov, M. Y.; Lecian, O. M.; Хлопов, Максим Юрьевич
Non-trivial baryosynthesis scenarios can lead to the existence of antimatter domains in a baryon-asymmetrical Universe. The consequences of antibaryon-baryon annihilation at the border of antimatter domains is investigated. Low-density antimatter domains are further classified according to the boundary interactions. A similar classification scheme is also proposed for higher-densities antimatter domains. The antiproton-proton annihilation interactions are therefore schematized and evaluated. The antinuclei-nuclei-interaction patterns are investigated. The two-point correlation functions for antimatter domains are studied in the case of baryon-antibaryon boundary interactions, which influence the space and time evolution. The space-time evolution of antimatter domains after the photon thermalization epoch is analyzed.
Только метаданные
Type V singularities in non-standard cosmological backgrounds
(2022) Trivedi, O.; Khlopov, M.; Хлопов, Максим Юрьевич
Interest in cosmological singularities has remarkably grown in recent times, particularly on future singularities with the discovery of late-time acceleration of the universe and dark energy. While there has been an expansive literature which has discussed the occurrence of Type I-IV singularities in many non-standard cosmologies, w/Type V singularities have not yet been explored in exotic cosmological settings. So in this work we pursue the same and discuss the occurrence of w-singularities in a variety of non-standard cosmologies. We consider the RS-II Braneworld cosmology, an F(R) gravity cosmology which gives viable late time acceleration and we also consider cosmologies due to modified area–entropy relations, generalized uncertainty principles, holographic renormalization and Chern–Simons gravity (all of which can be coincidentally described by the same form of the modified Friedmann equation). We show that w-singularities will occur in exactly the same conditions in all these cosmological settings as they do in the usual general relativistic cosmology if one considers a power series expansion ansatz for the scale factor. We also show that if one considers an exponential form of the scale factor then while Type V singularities in the RS-II Braneworld and Chern–Simons cosmologies occur in the same conditions as in the standard general relativistic case, there is a significant difference in the conditions when one considers the f(R) gravity case. These results are surprising overall, as one would usually not expect cosmological singularities to occur in almost the same conditions in non-standard cosmologies as they do in the usual standard cosmology. © 2022 Elsevier B.V.