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Resonance triplet dynamics in the quenched unitary Bose gas [PDF]
Physical Review Research, 2023 The quenched unitary Bose gas is a paradigmatic example of a strongly interacting out-of-equilibrium quantum system, whose dynamics become difficult to describe theoretically due to the growth of non-Gaussian quantum correlations. We develop a conserving
J. van de Kraats +3 more
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Stall identification methods in centrifugal compressor [PDF]
MATEC Web of Conferences, 2023 The presented paper describes a method for detecting compressor stall precursors in a measured pressure signal using procedures arising from the chaos theory.
Mlkvik Marek +2 more
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Methods of determination of the gas-dynamic characteristics of a jet nozzle of an aerodynamic object
Весці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2021 The efficiency of aerodynamic objects with jet engines is the result of many factors, among which nozzle parameters are of great importance in relation to the general engine design and the energy source, that determines the composition and properties of ...
A. Ph. Ilyushchanka +3 more
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Entanglement Dynamics of Random GUE Hamiltonians
SciPost Physics, 2021 In this work, we consider a model of a subsystem interacting with a reservoir and study dynamics of entanglement assuming that the overall time-evolution is governed by non-integrable Hamiltonians.
Daniel Chernowitz, Vladimir Gritsev
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Physics Letters B, 2020 We show that the recently formulated causal and stable first-order hydrodynamics has the same dynamics as Israel-Stewart theory for boost-invariant, Bjorken expanding systems with an ideal gas equation of state and a regulating sector determined by a ...
Arpan Das +3 more
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Optimizing the relaxation route with optimal control
Physical Review Research, 2021 We look into the minimization of the connection time between nonequilibrium steady states. As a prototypical example of an intrinsically nonequilibrium system, a driven granular gas is considered.
A. Prados
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A general theory for the lifetimes of giant molecular clouds under the influence of galactic dynamics [PDF]
, 2018 We propose a simple analytic theory for environmentally-dependent molecular cloud lifetimes, based on the large-scale (galactic) dynamics of the interstellar medium.
S. Jeffreson, J. Kruijssen
semanticscholar +1 more source
Reconstruction of cosmological models are inspired by generalization of the Chaplygin gas
Қарағанды университетінің хабаршысы. Физика сериясы, 2022 This paper considers models arising from the composition of the modified Gauss–Bonnet gravity (the Gauss–Bonnet invariant) and the general relativity (the Ricci scalar) against the background of a flat, homogeneous, and isotropic space-time described by
П.Ю. Цыба +2 more
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Nonlinear Density Wave Theory in a Gaseous Disk
The Astronomical Journal, 2023 A nonlinear solution for the gaseous component of a galactic disk has been derived self-consistently using fluid description and reductive perturbation theory. We show that gas follows a spiral pattern, similarly to the stellar component; but the spirals
Miroslava Vukcevic
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New phase space formulations and quantum dynamics approaches [PDF]
WIREs Computational Molecular Science, 2022 We report recent progress on the phase space formulation of quantum mechanics with coordinate‐momentum variables, focusing more on new theory of (weighted) constraint coordinate‐momentum phase space for discrete‐variable quantum systems.
Xin He +5 more
semanticscholar +1 more source