Quick search Find article
Quick search
Find article

The Berry phase and the pump flux in stochastic chemical kinetics

N. A. Sinitsyn1,2 and I. Nemenman2

Show affiliations


We study a classical two-state stochastic system in a sea of substrates and products (absorbing states), which can be interpreted as a single Michaelis-Menten catalyzing enzyme or as a channel on a cell surface. We introduce a novel general method and use it to derive the expression for the full counting statistics of transitions among the absorbing states. For the evolution of the system under a periodic perturbation of the kinetic rates, the latter contains a term with a purely geometrical (the Berry phase) interpretation. This term gives rise to a pump current between the absorbing states, which is due entirely to the stochastic nature of the system. We calculate the first two cumulants of this current, and we argue that it is observable experimentally.


PACS

82.20.-w Chemical kinetics and dynamics

03.65.Vf Phases: geometric; dynamic or topological

05.10.Gg Stochastic analysis methods (Fokker-Planck, Langevin, etc.)

Subjects

Computational physics

Statistical physics and nonlinear systems

Quantum information and quantum mechanics

Chemical physics and physical chemistry

Dates

Issue 5 (March 2007)

Received 26 October 2006, in final form 4 January 2007

Published 15 February 2007



Related review articles

What's this?
View review articles related to this research to gain an insight into the key trends in this subject area. Related review articles are selected based on PACS/MSC codes, and are no more than three years old.

  1. Forward flux sampling for rare event simulations

View by subject




Export








Please login to access our web services, or create an account if you don't yet have one.

You must have cookies enabled in your web browser to be able to login.

Username
Password

Forgotten your password? Get a new one here.