Zobrazeno 1 - 10
of 949
pro vyhledávání: '"Speck, T."'
Autor:
Picard, Joël A. K. L., Speck, T.
Publikováno v:
J. Chem. Phys. 158, 034701 (2023)
Conventional gas-liquid phase transitions feature a coexistence line that has a monotonic and positive slope in line with our intuition that cooling always leads to condensation. Here we study the inverse phenomenon, condensation of adsorbed organic
Externí odkaz:
http://arxiv.org/abs/2211.03639
Publikováno v:
Phys. Rev. E 94, 062610 (2016)
Employing theory and numerical simulations, we demonstrate discontinuous force thinning due to the motion of an external probe in a host medium, which we approximate as structureless. When the driving of the probe exceeds a critical force, the microv
Externí odkaz:
http://arxiv.org/abs/1602.05976
Akademický článek
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Publikováno v:
J. Chem. Phys. 139, 204109 (2013)
We discuss the stochastic thermodynamics of systems that are described by a time-dependent density field, for example simple liquids and colloidal suspensions. For a time-dependent change of external parameters, we show that the Jarzynski relation co
Externí odkaz:
http://arxiv.org/abs/1310.2891
Publikováno v:
Phys. Rev. E 75, 060101 (2007)
Based on the concept of a nonequilibrium steady state, we present a novel method to experimentally determine energy landscapes acting on colloidal systems. By measuring the stationary probability distribution and the current in the system, we explore
Externí odkaz:
http://arxiv.org/abs/0705.0323
Publikováno v:
Europhys. Lett. 79, 30002 (2007)
For a colloidal particle driven by a constant force across a periodic potential, we investigate the distribution of entropy production both experimentally and theoretically. For short trajectories, the fluctuation theorem holds experimentally. The me
Externí odkaz:
http://arxiv.org/abs/0705.0324
Publikováno v:
Phys. Rev. Lett. 98, 210601 (2007)
The Einstein relation connecting the diffusion constant and the mobility is violated beyond the linear response regime. For a colloidal particle driven along a periodic potential imposed by laser traps, we test the recent theoretical generalization o
Externí odkaz:
http://arxiv.org/abs/0704.2283
Publikováno v:
Phys. Rev. Lett. 97, 050602 (2006)
Using fluorescence spectroscopy we directly measure entropy production of a single two-level system realized experimentally as an optically driven defect center in diamond. We exploit a recent suggestion to define entropy on the level of a single sto
Externí odkaz:
http://arxiv.org/abs/cond-mat/0607407
Publikováno v:
Phys. Rev. Lett., 96, 070603 (2006)
We study the motion of an overdamped colloidal particle in a time-dependent non-harmonic potential. We demonstrate the first law-like balance between applied work, exchanged heat, and internal energy on the level of a single trajectory. The observed
Externí odkaz:
http://arxiv.org/abs/cond-mat/0512461
Autor:
Speck, T., Seifert, U.
Publikováno v:
Europhys. Lett., 74 (3), pp. 391-396 (2006)
In a nonequilibrium steady state, the violation of the fluctuation-dissipation theorem (FDT) is connected to breaking detailed balance. For the velocity correlations of a driven colloidal particle we calculate an explicit expression of the FDT violat
Externí odkaz:
http://arxiv.org/abs/cond-mat/0511696