Search Results - "Tsekov, Roumen"

On the Stochastic Origin of Quantum Mechanics by Tsekov, Roumen

“…The quantum Liouville equation, which describes the phase space dynamics of a quantum system of fermions, is analyzed from stochastic point of view as a…”
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Silica Gels Doped with Gold Nanoparticles: Preparation, Structure and Optical Properties by Shandurkov, Dimitar, Danchova, Nina, Spassov, Tony, Petrov, Vesselin, Tsekov, Roumen, Gutzov, Stoyan

“…A novel, one-pot sol–gel preparation scheme leading to reproducible incorporation of 20–40 nm sized gold nanoparticles (AuNPs) in SiO2 gels is developed based…”
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Comparative validation of the analytical models for the Marangoni effect on foam film drainage by Karakashev, Stoyan I., Ivanova, Dilyana S., Angarska, Zhana K., Manev, Emil D., Tsekov, Roumen, Radoev, Borjan, Slavchov, Radomir, Nguyen, Anh V.

“…The aim of this paper is to evaluate four of the well-known models for drainage of thin liquid films, containing non-ionic surfactants, by applying them to…”
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Brownian motion of a classical particle in quantum environment by Tsekov, Roumen

“…The Klein–Kramers equation, governing the Brownian motion of a classical particle in a quantum environment under the action of an arbitrary external potential,…”
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Elasticity of foam bubbles measured by profile analysis tensiometry by Karakashev, Stoyan I., Tsekov, Roumen, Manev, Emil D., Nguyen, Anh V.

“…Elastic modulus of foam bubbles, stabilized with tetraethylene glycol octyl ether (C 8E 4) and 1 × 10 −5 M NaCl, was determined by cyclic expansion and…”
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A Quantum Theory of Thermodynamic Relaxation by Tsekov, Roumen

“…A new approach to quantum Markov processes is developed and the corresponding Fokker-Planck-like equation is derived. The latter was examined to reproduce…”
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Resistance of glass fibre reinforced polyamide 6.6 materials to automotive cooling fluids: an analytical method for lifetime prediction by Harrass, Konstantina, Mauer, Sebastian, Tsekov, Roumen

“…Two types (with and without a hydrolysis stabilizer) of polyamide 6.6 (PA6.6) reinforced with 30% w/w glass fibres were examined against the influence of…”
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Quantum diffusion by Tsekov, Roumen

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Relating quantum mechanics with hydrodynamic turbulence by Tsekov, Roumen, Heifetz, Eyal, Cohen, Eliahu

“…In this letter we attempt to trace back the origin of quantum uncertainty. We show that the Schrödinger equation can be mapped into the inviscid Favre-Reynolds…”
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Nonlinear Theory of Quantum Brownian Motion by Tsekov, Roumen

“…A nonlinear theory of quantum Brownian motion in classical environment is developed based on a thermodynamically enhanced nonlinear Schrödinger equation. The…”
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Dissipative Time Dependent Density Functional Theory by Tsekov, Roumen

“…The simplest density functional theory due to Thomas, Fermi, Dirac and Weizsäcker is employed to describe the non-equilibrium thermodynamic evolution of an…”
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Thermo-Quantum Diffusion by Tsekov, Roumen

“…A new approach to the thermo-quantum diffusion is proposed and a nonlinear quantum Smoluchowski equation is derived, which describes classical diffusion in the…”
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On Entropy Production in the Madelung Fluid and the Role of Bohm’s Potential in Classical Diffusion by Heifetz, Eyal, Tsekov, Roumen, Cohen, Eliahu, Nussinov, Zohar

“…The Madelung equations map the non-relativistic time-dependent Schrödinger equation into hydrodynamic equations of a virtual fluid. While the von Neumann…”
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Towards Nonlinear Quantum Fokker-Planck Equations by Tsekov, Roumen

“…It is demonstrated how the equilibrium semiclassical approach of Coffey et al. can be improved to describe more correctly the evolution. As a result a new…”
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Advanced Thermostats for Molecular Dynamics by Tsekov, Roumen

“…C. R. Acad. Bulg. Sci. 76 (2023) 1343-1349 Advanced thermostats for molecular dynamics are proposed on the base of the rigorous Langevin dynamics. Because the…”
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Social Thermodynamics 2.0 by Tsekov, Roumen

“…Trailing the modern ideas of sociophysics, a minimalistic thermodynamic model of society is proposed, which consists of three social ingredients: people,…”
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Adsorption of Ions at Uncharged Insoluble Monolayers by Peshkova, Tatyana V, Minkov, Ivan L, Tsekov, Roumen, Slavchov, Radomir I

“…A method is proposed for the experimental determination of the adsorption of inorganic electrolytes at a surface covered with insoluble surfactant monolayer…”
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Bubble rubbing on hydrophobic solid surfaces by Karakashev, Stoyan I., Stöckelhuber, Klaus W., Tsekov, Roumen, Grozev, Nikolay, Simeonova, Silviya, Raykundaliya, Nirav, Heinrich, Gert

“…[Display omitted] This is an original study on the rubbing of ruptured bubbles on a hydrophobic solid surfaces. A bubble protruding from a capillary tube…”
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Quantum Entanglement of Free Particles by Tsekov, Roumen

“…Fluct. Noise Lett. 21 (2022) 2250024 The Schrodinger equation is solved for many free particles and their quantum entanglement is studied via correlation…”
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Electro-Marangoni Effect in Thin Liquid Films by Karakashev, Stoyan I, Tsekov, Roumen

“…The present paper reports a new drainage model accounting for the electro-Marangoni effect in thin liquid films stabilized by ionic surfactants. It was shown…”
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