Zobrazeno 1 - 10
of 176
pro vyhledávání: '"E. Kravtsov"'
Publikováno v:
Вестник Московского университета. Серия 14: Психология, Vol 47, Iss 1, Pp 88-105 (2024)
Background. The relevance of the study is associated with the activation of malevolent creativity at the macro level in the form of information wars and isolation of Russia, which create threatening socio-political conditions, against the background
Externí odkaz:
https://doaj.org/article/f2c2cfb67cfd4979aa0a1bb5d5166aa6
Publikováno v:
SciPost Physics, Vol 12, Iss 2, p 048 (2022)
The accuracy of the forward scattering approximation for two-point Green's functions of the Anderson localization model on the Cayley tree is studied. A relationship between the moments of the Green's function and the largest eigenvalue of the lin
Externí odkaz:
https://doaj.org/article/59eaa01944ae47b19b82d8dd3c02e756
Publikováno v:
SciPost Physics, Vol 11, Iss 2, p 045 (2021)
We consider the static and the dynamic phases in a Rosenzweig-Porter (RP) random matrix ensemble with a distribution of off-diagonal matrix elements of the form of the large-deviation ansatz. We present a general theory of survival probability in suc
Externí odkaz:
https://doaj.org/article/e6aed901ed264b399d46ff8141c633c2
Publikováno v:
Physical Review Research, Vol 2, Iss 4, p 043346 (2020)
In this paper, we suggest an extension of the Rosenzweig-Porter (RP) model, the LN-RP model, in which the off-diagonal matrix elements have a wide, log-normal distribution. We argue that this model is more suitable to describe a generic many-body loc
Externí odkaz:
https://doaj.org/article/1e62ad7b53f04002acbadf77227a0577
We study the response of an isolated quantum system governed by the Hamiltonian drawn from the Gaussian Rosenzweig-Porter random matrix ensemble to a perturbation controlled by a small parameter. We focus on the density of states, local density of st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5d459ad33966858c47d655decd27792a
http://arxiv.org/abs/2205.10297
http://arxiv.org/abs/2205.10297
Publikováno v:
SciPost Physics, Vol 6, Iss 1, p 014 (2019)
We study analytically and numerically the dynamics of the generalized Rosenzweig-Porter model, which is known to possess three distinct phases: ergodic, multifractal and localized phases. Our focus is on the survival probability $R(t)$, the probab
Externí odkaz:
https://doaj.org/article/d66e5a3994be4c01abf39c8ddad73e68
Publikováno v:
Odes’kyi Politechnichnyi Universytet Pratsi. 3:5-13
Publikováno v:
SciPost Physics, Vol 11, Iss 2, p 045 (2021)
SciPost Physics
SciPost Physics
We consider the static and dynamic phases in a Rosenzweig-Porter (RP) random matrix ensemble with the tailed distribution of off-diagonal matrix elements of the form of the large-deviation ansatz. We present a general theory of survival probability i
Publikováno v:
Measurement Techniques. 61:1018-1021
We present the results of investigations of an installation aimed at the transmission of highly stable 1 PPS time signals from the hydrogen time and frequency standard over a 150 km optical fiber communication line with the use of active electronic c
Publikováno v:
Measurement Techniques. 61:903-907
The operating principle of an optical high-resolution reflectometer running in the frequency domain (OFDR reflectometer) is examined. A mathematical model for measuring the parameters of fiber-optic systems using an OFDR reflectometer is presented. T