Zobrazeno 1 - 10
of 170
pro vyhledávání: '"P. Kapraľová"'
Publikováno v:
Общая реаниматология, Vol 15, Iss 5, Pp 23-33 (2019)
Our aim was to assess the effectivity of continuous flow ventilatory support (CFVS) in those COPD patients undergoing cardiac surgery who developed hypercapnic respiratory failure.Materials and methods. CFVS was applied in 11 COPD (Stage 2.55±0.52 o
Externí odkaz:
https://doaj.org/article/58c5ba3df75f4a7282a2e0154d26a221
This paper analyses LightGCN in the context of graph recommendation algorithms. Despite the initial design of Graph Convolutional Networks for graph classification, the non-linear operations are not always essential. LightGCN enables linear propagati
Externí odkaz:
http://arxiv.org/abs/2312.16183
We revisit the complex time method for the application to quantum dynamics as an exceptional point is encircled in the parameter space of the Hamiltonian. The basic idea of the complex time method is using complex contour integration to perform the f
Externí odkaz:
http://arxiv.org/abs/2110.14473
Autor:
Kloc, Michal, Šimsa, Daniel, Hanák, Filip, Kaprálová-Žďánská, Petra Ruth, Stránský, Pavel, Cejnar, Pavel
Publikováno v:
Phys. Rev. A 103, 032213 (2021)
The dynamics of a quantum system following a sudden, highly non-adiabatic change of its control parameter (quantum quench) is studied with quasiclassical techniques. Recent works have shown, using exact quantum mechanical approach, that equilibration
Externí odkaz:
http://arxiv.org/abs/2010.07750
This study concerns finite basis set $\{\chi_k\}$ calculations of resonances based on real scaling, $\chi_k(x)\to \chi_k(xe^{-\eta})$. I demonstrate that resonance width is generally influenced by several neighboring quasi-discrete continuum states.
Externí odkaz:
http://arxiv.org/abs/2004.06372
Akademický článek
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We study theoretically the population transfer in two-level atoms driven by chirped lasers. It is known that in the Hermitian case, the rapid adiabatic passage (RAP) is stable for an above-critical chirp below which the final populations of states Ra
Externí odkaz:
http://arxiv.org/abs/1903.10383
Akademický článek
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We present an \emph{ab-initio} approach for computing the photoionization spectrum near autoionization resonances in multi-electron systems. While traditional (Hermitian) theories typically require computing the continuum states, which are difficult
Externí odkaz:
http://arxiv.org/abs/1812.02005
We present a non-Hermitian theory of atomic and molecular absorption, which enables computing the absorption spectrum of multi-electron atoms and molecules without using any fitting parameters. We propose a method for optically inducing exceptional p
Externí odkaz:
http://arxiv.org/abs/1809.02868