Intrinsic noise alters the frequency spectrum of mesoscopic oscillatory chemical reaction systems
نویسندگان
چکیده
منابع مشابه
Intrinsic noise alters the frequency spectrum of mesoscopic oscillatory chemical reaction systems
Mesoscopic oscillatory reaction systems, for example in cell biology, can exhibit stochastic oscillations in the form of cyclic random walks even if the corresponding macroscopic system does not oscillate. We study how the intrinsic noise from molecular discreteness influences the frequency spectrum of mesoscopic oscillators using as a model system a cascade of coupled Brusselators away from th...
متن کاملNoise helped manifestation of intrinsic frequency: A case study in the mesoscopic hormone signaling system
The selective sustainment of nonlinear systems to signals is of great significance to signal transduction in living systems. We take hormone signaling as an example, and investigate the sustainment of internal and external signals. Simulation results prove that signals with ‘‘intrinsic frequency”, no matter if it is noise induced or external injected, can be selectively sustained by exploiting ...
متن کاملIntrinsic Decoherence in Mesoscopic Systems
We present measurements of the phase coherence time tf in six quasi-1D Au wires and clearly show that tf is temperature independent at low temperatures. We suggest that zero-point fluctuations of the phase coherent electrons are responsible for the observed saturation of tf. We introduce a new functional form for the temperature dependence and present the results of a calculation for the satura...
متن کاملEntropy production in a mesoscopic chemical reaction system with oscillatory and excitable dynamics.
Stochastic thermodynamics of chemical reaction systems has recently gained much attention. In the present paper, we consider such an issue for a system with both oscillatory and excitable dynamics, using catalytic oxidation of carbon monoxide on the surface of platinum crystal as an example. Starting from the chemical Langevin equations, we are able to calculate the stochastic entropy productio...
متن کاملOscillatory systems driven by noise: frequency and phase synchronization.
The phenomenon of effective phase synchronization in stochastic oscillatory systems can be quantified by an average frequency and a phase diffusion coefficient. A different approach to compute the noise-averaged frequency is put forward. The method is based on a threshold crossing rate pioneered by Rice. After the introduction of the Rice frequency for noisy systems we compare this quantifier w...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Scientific Reports
سال: 2011
ISSN: 2045-2322
DOI: 10.1038/srep00154