Related Experiment Videos
Nonequilibrium first-order phase transition induced by additive noise.
A A Zaikin1, J García-Ojalvo, L Schimansky-Geier
1Institute of Physics, University of Potsdam, Am Neuen Palais 10, 14469 Potsdam, Germany.
Summary
Additive noise can induce a nonequilibrium first-order phase transition in nonlinear systems. This study confirms theoretical predictions with numerical simulations, providing a physical mechanism for this noise-induced transition.
Area of Science:
- Statistical Physics
- Nonlinear Dynamics
- Complex Systems
Background:
- Phase transitions typically occur in equilibrium systems.
- Understanding nonequilibrium phenomena is crucial for complex systems.
- Noise is often considered a disruptive factor in physical systems.
Purpose of the Study:
- To investigate the induction of a nonequilibrium first-order phase transition.
- To explore the role of additive noise in driving such transitions.
- To provide a physical model and explanation for noise-induced transitions.
Main Methods:
- Utilizing a nonlinear lattice model of overdamped oscillators.
- Incorporating both additive and multiplicative noise terms.
- Employing mean field theory and numerical simulations for validation.
Main Results:
- Demonstrated that additive noise can indeed induce a first-order phase transition under nonequilibrium conditions.
- Numerical simulations successfully validated the predictions derived from mean field theory.
- A clear physical mechanism underlying the noise-induced transition was elucidated.
Conclusions:
- Additive noise is a viable mechanism for inducing nonequilibrium phase transitions.
- The nonlinear lattice model effectively captures this phenomenon.
- The findings offer insights into the behavior of complex systems driven by noise.