Dissipative phase transitions in systems with nonreciprocal effective interactions.
Nikita P Kryuchkov1, Alexei V Ivlev, Stanislav O Yurchenko
1Bauman Moscow State Technical University, 2nd Baumanskaya street 5, 105005 Moscow, Russia. st.yurchenko@mail.ru.
Soft Matter
|November 24, 2018
Summary
Nonreciprocal interparticle forces in open systems can lead to complex behaviors. We found conditions for simplifying these systems and revealed bistability and spinodal decomposition in others.
Area of Science:
- Physics
- Physical Chemistry
Background:
- Interparticle force reciprocity is fundamental in equilibrium systems.
- Nonreciprocity arises in open, nonequilibrium systems like colloidal suspensions and dusty plasmas.
Purpose of the Study:
- To establish a criterion for reducing nonreciprocal systems to pseudo-Hamiltonian systems.
- To investigate the steady-state behavior of systems where this criterion is not met.
Main Methods:
- Theoretical analysis of effective interparticle forces.
- Identification of conditions for detailed dynamic equilibrium.
- Examination of systems with nonreciprocal diffusiophoretic forces.
Main Results:
- A criterion for strict reduction to pseudo-Hamiltonian systems was derived.
- Catalytically active colloids satisfy this criterion.
- General nonreciprocal systems exhibit bistability and dissipative spinodal decomposition.
Conclusions:
- Nonreciprocity in effective interparticle forces leads to rich phenomena.
- Understanding these criteria is crucial for complex systems like plasmas and colloids.
- Bistability and spinodal decomposition are common in systems with nonreciprocal interactions.
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