Zobrazeno 1 - 10
of 76
pro vyhledávání: '"Petr Chvosta"'
We derive an exact expression for the probability density of work done on a particle that diffuses in a parabolic potential with a stiffness varying by an arbitrary piecewise constant protocol. Based on this result, the work distribution for time-con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::97f2c2546ad05bf18a2cd8325a3a752b
Publikováno v:
Physica E: Low-dimensional Systems and Nanostructures. 42:472-476
We investigate a microscopic motor based on an externally driven two-level system. One cycle of the motor operation consists of two strokes. Within each stroke, the two energy levels are driven with a constant rate. The occupation probabilities of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f3494b494f8bcb437f9d8ec066bad65
https://doi.org/10.1016/j.physe.2009.06.031
https://doi.org/10.1016/j.physe.2009.06.031
We propose a simple conjecture for the functional form of the asymptotic behavior of work distributions for driven overdamped Brownian motion of a particle in confining potentials. This conjecture is motivated by the fact that these functional forms
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1564f56453d8a4f3d1f9d62852c53eca
Autor:
Petr Chvosta, Evzen Subrt
Publikováno v:
Czechoslovak Journal of Physics. 56:125-139
We investigate the one-dimensional diffusion of a particle in a piecewise linear W-shaped potential, on which a harmonically modulated discontinuity situated at the central tip is superimposed. The simplified description of the external driving enabl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::15606ce90805079bc26298f70018c7d3
https://doi.org/10.1007/s10582-006-0074-x
https://doi.org/10.1007/s10582-006-0074-x
Autor:
Evžen Šubrt, Petr Chvosta
Publikováno v:
Physica E: Low-dimensional Systems and Nanostructures. 29:426-434
We investigate the one-dimensional diffusion of the particle in piecewise linear potentials in some physically relevant cases. The underlying potential profiles are a W-shaped double well and a periodic array of saw tooth. In both cases the potential
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b5e43bd01a1960ccfc82fbc822bbda5
https://doi.org/10.1016/j.physe.2005.05.042
https://doi.org/10.1016/j.physe.2005.05.042
Autor:
Peter Reineker, Petr Chvosta
Publikováno v:
Journal of Physics A: Mathematical and General. 36:8753-8758
We investigate the one-dimensional diffusion of a particle in a V-shaped potential combined with a time-dependent jump at the tip. Employing the matching conditions, we calculate the exact Green function of the corresponding Smoluchowski equation. We
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https://explore.openaire.eu/search/publication?articleId=doi_________::58bbc8b188561e139cad7479f321553a
https://doi.org/10.1088/0305-4470/36/33/303
https://doi.org/10.1088/0305-4470/36/33/303
Autor:
Petr Chvosta, František Slanina
Publikováno v:
Journal of Physics A: Mathematical and General. 35:L277-L282
We investigate a simple model of an overdamped Brownian particle in a harmonic potential. The dynamics is described by a Langevin equation with a two-valued stochastic force. The properties of the Langevin force are controlled through a back-reaction
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https://explore.openaire.eu/search/publication?articleId=doi_________::92dca2e01a4c545a4a89e1daf691cbb9
https://doi.org/10.1088/0305-4470/35/21/101
https://doi.org/10.1088/0305-4470/35/21/101
Autor:
Petr Chvosta, Artem Ryabov
The paper addresses the single-file diffusion in the presence of an absorbing boundary. The emphasis is on an interplay between the hard-core interparticle interaction and the absorption process. The resulting dynamics exhibits several qualitatively
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::45efe4c7649e488ff4c558e050fdb15c
http://arxiv.org/abs/1402.1949
http://arxiv.org/abs/1402.1949
Autor:
Peter Reineker, Petr Chvosta
Publikováno v:
Physica A: Statistical Mechanics and its Applications. 268:103-120
We analyze the averaged dynamics of a system which jumps within a predefined set of dynamical modes at random time instants. In between the jumps, the dynamics is not necessarily exponential. The residence times are specific for the dynamical modes a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::90c996f17a4203137800c5c89780fbfd
https://doi.org/10.1016/s0378-4371(99)00021-7
https://doi.org/10.1016/s0378-4371(99)00021-7
Autor:
Noëlle Pottier, Petr Chvosta
Publikováno v:
Journal of Statistical Physics. 97:323-349
We consider the one-dimensional diffusion of a particle on a semi-infinite line and in a piecewise linear random potential. We first present a new formalism which yields an analytical expression for the Green function of the Fokker-Planck equation, v
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::290a612fc6e6e1236f213270a22b47c2
https://doi.org/10.1023/a:1004627404379
https://doi.org/10.1023/a:1004627404379