Zobrazeno 1 - 10
of 55
pro vyhledávání: '"Rana, Shubhashis"'
Autor:
Rana, Shubhashis, Barato, Andre C
Publikováno v:
Phys. Rev. E 102, 032135 (2020)
Spontaneous pattern formation is a fundamental scientific problem that has received much attention since the seminal theoretical work of Turing on reaction-diffusion systems. In molecular biophysics, this phenomena often takes place under the influen
Externí odkaz:
http://arxiv.org/abs/2004.01230
We consider collective dynamics of self-propelling particles in two dimensions. They can align themselves according to the direction of propulsion of their neighbours, together with a random perturbation (i.e. rotational fluctuation). They are also i
Externí odkaz:
http://arxiv.org/abs/1903.12241
Publikováno v:
Phys. Rev. E 98, 052142 (2018)
Using molecular dynamics simulations, we study particle-transport in a system of interacting colloidal particles on a ring, where the system is driven by a time-dependent external potential, moving along the ring. We consider two driving protocols: (
Externí odkaz:
http://arxiv.org/abs/1806.08250
Autor:
Rana, Shubhashis
In an Information machine system's dynamics gets affected by the attached information reservoir. Second law of thermodynamics can be apparently violated for this case. In this article we have derived second law for an information machine, when the sy
Externí odkaz:
http://arxiv.org/abs/1704.08639
Autor:
Rana, Shubhashis, Jayannavar, A. M.
Second law of thermodynamics can be apparently violated for systems whose dynamics depends on acquired information by measurement. However, when one consider measurement and erasure process together along with the system it saves the second law. We c
Externí odkaz:
http://arxiv.org/abs/1611.01993
Autor:
Rana, Shubhashis, Jayannavar, A. M.
Publikováno v:
J. Stat. Mech. (2016) 103207
Motivated by the recent work by Mandal and Jarzynski on autonomous Maxwell demon information engine, we have extended their model by introducing two different heat baths. The system (demon) is coupled to a memory register (tape) and a work source. Th
Externí odkaz:
http://arxiv.org/abs/1603.01129
We present a detailed study of a Brownian particle driven by Carnot-type refrigerating protocol operating between two thermal baths. Both the underdamped as well as the overdamped limits are investigated. The particle is in a harmonic potential with
Externí odkaz:
http://arxiv.org/abs/1503.02559
Publikováno v:
Phys. Rev. E 90, 022143(2014)
Work can be extracted from a single bath beyond the limit set by the second law by performing measurement on the system and utilising the acquired information. As an example we studied a Brownian particle confined in a two dimensional harmonic trap i
Externí odkaz:
http://arxiv.org/abs/1405.1461
Publikováno v:
Phys. Rev. E 90, 042146 (2014)
We have performed an extensive analysis of a single particle stochastic heat engine constructed by manipulating a Brownian particle in a time dependent harmonic potential. The cycle consists of two isothermal steps at different temperatures and two a
Externí odkaz:
http://arxiv.org/abs/1404.7831
Publikováno v:
Phys. Lett. A, 378, 979 (2014)
We compare the fluctuation relations for work and entropy in underdamped and overdamped systems, when the friction coefficient of the medium is space-dependent. We find that these relations remain unaffected in both cases. However, for the overdamped
Externí odkaz:
http://arxiv.org/abs/1304.6502