Characteristics of the polymer transport in ratchet systems
Kauttonen, J., & Merikoski, J. (2010). Characteristics of the polymer transport in ratchet systems. Physical Review E, 81, 41112. https://doi.org/10.1103/PhysRevE.81.041112
Julkaistu sarjassa
Physical Review EPäivämäärä
2010Tekijänoikeudet
© 2010 The American Physical Society. Published in this repository with the kind permission of the publisher.
Molecules with complex internal structure in time-dependent periodic potentials are studied by using short
Rubinstein-Duke model polymers as an example. We extend our earlier work on transport in stochastically
varying potentials to cover also deterministic potential switching mechanisms, energetic efficiency, and nonuniform
charge distributions. We also use currents in the nonequilibrium steady state to identify the dominating
mechanisms that lead to polymer transportation and analyze the evolution of the macroscopic state e.g., total
and head-to-head lengths of the polymers. Several numerical methods are used to solve the master equations
and nonlinear optimization problems. The dominating transport mechanisms are found via graph optimization
methods. The results show that small changes in the molecule structure and the environment variables can lead
to large increases of the drift. The drift and the coherence can be amplified by using deterministic flashing
potentials and customized polymer charge distributions. Identifying the dominating transport mechanism by
graph analysis tools is found to give insight in how the molecule is transported by the ratchet effect.
...
ISSN Hae Julkaisufoorumista
1539-3755Asiasanat
Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/20241966
Metadata
Näytä kaikki kuvailutiedotKokoelmat
Samankaltainen aineisto
Näytetään aineistoja, joilla on samankaltainen nimeke tai asiasanat.
-
Numerical studies of transport in complex many-particle systems far from equilibrium
Kauttonen, Janne (University of Jyväskylä, 2012)In this Thesis, transport in complex nonequilibrium many-particle systems is studied using numerical master equation approach and Monte Carlo simulations. We focus on the transport of the center-of-mass of deformable ... -
Non-equilibrium quantum phenomena in the early universe
Koskivaara, Olli (Jyväskylän yliopisto, 2023)We develop and apply to physical problems non-equilibrium quantum field theory techniques. With the mathematical framework provided by the 2PI effective action formalism we write down quantum transport equations for ... -
Time-dependent quantum transport in nanosystems : a nonequilibrium Green's function approach
Tuovinen, Riku (University of Jyväskylä, 2016)A time-dependent extension to the Landauer–Büttiker approach to study transient quantum transport in arbitrary junctions composed of leads and conducting devices is developed. The nonequilibrium Green’s function approach ... -
Developments in many-body theory of quantum transport and spectroscopy with non-equilibrium Green's functions and time-dependent density functional theory
Uimonen, Anna-Maija (University of Jyväskylä, 2015)The problem of quantum dynamics in open systems has gained attention in recent decades and not the least due to the advances made in quantum transport in molecular systems. The main motivation behind quantum transport ... -
Time-Linear Quantum Transport Simulations with Correlated Nonequilibrium Green’s Functions
Tuovinen, R.; Pavlyukh, Y.; Perfetto, E.; Stefanucci, G. (American Physical Society (APS), 2023)We present a time-linear scaling method to simulate open and correlated quantum systems out of equilibrium. The method inherits from many-body perturbation theory the possibility to choose selectively the most relevant ...
Ellei toisin mainittu, julkisesti saatavilla olevia JYX-metatietoja (poislukien tiivistelmät) saa vapaasti uudelleenkäyttää CC0-lisenssillä.