Zobrazeno 1 - 10
of 1 588
pro vyhledávání: '"Denisov, Sergey A."'
Autor:
Denisov, Sergey A.
Publikováno v:
Comptes Rendus. Mathématique, Vol 359, Iss 6, Pp 757-762 (2021)
We present a method that uses the properties of subharmonic functions to control spatial asymptotics of Green’s kernel of multidimensional Schrödinger operator with rough potential.
Externí odkaz:
https://doaj.org/article/0b616dc6b371432db4c413959a75b3c7
Autor:
Denisov, Sergey A.
We develop the wave packet decomposition to study the Schrodinger evolution with rough potential. As an application, we obtain the improved bound on the wave propagation for the generic value of a parameter.
Comment: The exposition improved, typ
Comment: The exposition improved, typ
Externí odkaz:
http://arxiv.org/abs/2408.03470
Random unitaries are an important resource for quantum information processing. While their universal properties have been thoroughly analyzed, it is not known what happens to these properties when the unitaries are sampled on the present-day noisy in
Externí odkaz:
http://arxiv.org/abs/2405.11625
We introduce different ensembles of random Lindblad operators $\cal L$, which satisfy quantum detailed balance condition with respect to the given stationary state $\sigma$ of size $N$, and investigate their spectral properties. Such operators are kn
Externí odkaz:
http://arxiv.org/abs/2304.02960
The evolution of a complex multi-state system is often interpreted as a continuous-time Markovian process. To model the relaxation dynamics of such systems, we introduce an ensemble of random sparse matrices which can be used as generators of Markovi
Externí odkaz:
http://arxiv.org/abs/2302.12762
Autor:
Bessonov, Roman V., Denisov, Sergey A.
Publikováno v:
Pacific J. Math. 331 (2024) 217-258
We apply inverse spectral theory to study Sobolev norms of solutions to the nonlinear Schrodinger equation. For initial datum $q_0\in L^2(\mathbb{R})$ and $s\in [-1,0]$, we prove that there exists a conserved quantity that is equivalent to $H^s(\math
Externí odkaz:
http://arxiv.org/abs/2211.07051
Motivated by recent applications requiring differential privacy over adaptive streams, we investigate the question of optimal instantiations of the matrix mechanism in this setting. We prove fundamental theoretical results on the applicability of mat
Externí odkaz:
http://arxiv.org/abs/2202.08312
Autor:
Denisov, Sergey1,2 (AUTHOR) sdenisov@matur.co.uk, Blinchevsky, Benjamin1,3 (AUTHOR) bblinchevsky@matur.co.uk, Friedman, Jonathan3,4 (AUTHOR) c.e.greenwood@keele.ac.uk, Gerbelli, Barbara5 (AUTHOR) barbara.gerbelli@diamond.ac.uk, Ajeer, Ash5 (AUTHOR) a.ajeer@keele.ac.uk, Adams, Lois5 (AUTHOR) l.e.m.adams@keele.ac.uk, Greenwood, Charlene3,5 (AUTHOR) k.d.rogers@cranfield.ac.uk, Rogers, Keith3,6 (AUTHOR), Mourokh, Lev3,4 (AUTHOR) lev.murokh@qc.cuny.edu, Lazarev, Pavel1,3 (AUTHOR) plazarev@matur.co.uk
Publikováno v:
Cancers. Jul2024, Vol. 16 Issue 14, p2499. 11p.
Publikováno v:
Phys. Rev. B 104, 165414 (2021)
Floquet engineering of isolated systems is often based on the concept of the effective time-independent Floquet Hamiltonian, which describes the stroboscopic evolution of a periodically driven quantum system in steps of the driving period and which i
Externí odkaz:
http://arxiv.org/abs/2107.10054
Autor:
Bystrik, Yurii, Denisov, Sergey
L\'{e}vy walks are a particular type of continuous-time random walks which results in a super-diffusive spreading of an initially localized packet. The original one-dimensional model has a simple schematization that is based on starting a new unidire
Externí odkaz:
http://arxiv.org/abs/2107.01951