Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Artur Sowa"'
Autor:
Artur Sowa, Jonas Fransson
Publikováno v:
Quantum, Vol 6, p 728 (2022)
We introduce a new method for analysing the Bose-Hubbard model for an array of bosons with nearest neighbor interactions. It is based on a number-theoretic implementation of the creation and annihilation operators that constitute the model. One of th
Externí odkaz:
https://doaj.org/article/d58d151f623e40b5b6fc3493532df821
Autor:
Artur Sowa
Publikováno v:
Springer Proceedings in Mathematics & Statistics ISBN: 9783030635909
We propose a new method for adapting (perturbing) models of quantum observables. The method is dubbed TAQS as it is based on toral automorphisms (diffeomorphisms) and the Q-transform, which together induce superoperators acting on observables. We dem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4af9f9ef40d1b53252f02c63f708cbb6
https://doi.org/10.1007/978-3-030-63591-6_41
https://doi.org/10.1007/978-3-030-63591-6_41
Autor:
Artur Sowa
Publikováno v:
Advances in Mathematical Physics, Vol 2009 (2009)
Quantum Hall systems are a suitable theme for a case study in the general area of nanotechnology. In particular, it is a good framework to search for universal principles relevant to nanosystem modeling and nanosystem-specific signal processing. Rece
Externí odkaz:
https://doaj.org/article/4e24fe7ef05e4ba38f618751aa1f7bb9
Autor:
Artur Sowa
Publikováno v:
IMA Journal of Applied Mathematics. 82:1238-1252
Let $a\in (0,1)$ and let $F_s(a)$ be the periodized zeta function that is defined as $F_s(a) = \sum n^{-s} \exp (2\pi i na)$ for $\Re s >1$, and extended to the complex plane via analytic continuation. Let $s_n = \sigma_n + it_n, \, t_n >0 $, denote
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47ec3ee6d741f680759a66989b661a04
https://doi.org/10.1093/imamat/hxx033
https://doi.org/10.1093/imamat/hxx033
Autor:
Artur Sowa
Publikováno v:
Random Operators and Stochastic Equations. 25:27-39
We apply simulated quantum evolution to image processing, and examine its practicality in the context of image denoising. More specifically, in our approach image processing consists of three stages: First, a digitized gray-scale image is represented
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fdf93fc86aebd5a97ba7de480f282204
https://doi.org/10.1515/rose-2017-0003
https://doi.org/10.1515/rose-2017-0003
Autor:
Artur Sowa
Publikováno v:
Applicationes Mathematicae. 44:185-196
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::264e2b6037888e14f191d30a4fc18dc2
https://doi.org/10.4064/am2328-4-2017
https://doi.org/10.4064/am2328-4-2017
Autor:
Artur Sowa, Alexandre M. Zagoskin
The key difficulty in the modelling of large quantum coherent structures lies in keeping track of nonlocal, multipoint quantum correlations between their constituent parts. Here we consider a special case of such a system, a fractal quantum metamater
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c7cbf77f5b4dcf2f6ff8a20df97dc3a7
Autor:
Artur Sowa, Qi Guo
We discuss a specific model, which we refer to as RandLOE, of a large multi-agent network whose dynamic is prescribed via a combination of deterministic local laws and random exogenous factors. The RandLOE approach lies outside the framework of Stoch
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::035cf045c96a5cc4e877b57add8a1aa9
Publikováno v:
Physical Review B 100(2019)14, 144506
arXiv:1903.06285 [quant-ph]: https://arxiv.org/abs/1903.06285
arXiv:1903.06285 [quant-ph]: https://arxiv.org/abs/1903.06285
We show that an array of qubits embedded in a waveguide can emit entangled pairs of microwave photon beams. The quadratures obtained from a homodyne detection of these outputs beams form a pair of correlated continuous variables similarly to the EPR
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d082cd900a1d247a1514bdf3d6d726ae
https://www.hzdr.de/publications/Publ-29862-1
https://www.hzdr.de/publications/Publ-29862-1
Autor:
Artur Sowa
Publikováno v:
Russian Journal of Mathematical Physics. 22:98-111
We discuss a mathematical link between the Quantum Statistical Mechanics and the logistic growth and decay processes. It is based on an observation that a certain nonlinear operator evolution equation, which we refer to as the Logistic Operator Equat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a61fdf89079a98b483af8cbefe1e1da1
https://doi.org/10.1134/s1061920815010112
https://doi.org/10.1134/s1061920815010112