Date:2008/Oct/08(wed)　16:00-
Place:Room Ew-305, E Block,IIS, The University of Tokyo
Speaker:Dr.Ram Ramaswamy(School of Physical Sciences, Jawaharlal Nehru
University)
Title: Effective mechanisms for the synchronization of stochastic oscillators

Abstract: In this talk I will discuss the emergence of synchronization. This
is a phenomenon that is ubiquitous in a wide variety of natural systems and
is of much interest, especially in the context of biology.  Such behavior is
also often robust: systems subject to large stochastic ?uctuations and which
possess a range of internal time scales are capable of exhibiting sustained
correlated dynamics. We study model chemical reactions and genetic networks
that have stochastic oscillatory dynamics, and discuss microscopic
mechanisms  through which two or more such distinct stochastic processes can
be coupled so as to result in the phase synchronization of their dynamical
variables. We also consider the effect of time delay in the interaction and
show that for suitable choices of the delay parameter, in-phase or antiphase
synchronization can occur.