Abstract
Collective excitations in a two-dimensional fluid with repulsive dipole-like interactions are systematically studied by molecular dynamics simulations. A two-oscillator model is used to reconstruct dispersion curves and to measure q-gap boundary values in the dispersion relation of the transverse (shear) mode. Functional form for the dependence of the q-gap boundary value on the coupling parameter is suggested. The results obtained can be used in future investigations of collective excitations in fluids, especially in two-dimensional cases.
Highlights
IntroductionMolecular or colloidal monolayers on interface surfaces, vortices in thin-film semiconductors, two-dimensional electron gas on the surface of liquid helium are typical examples of such systems
Two- and quasi-two-dimensional (2D) systems are widespread in nature
Collective excitations in a two-dimensional fluid with repulsive dipole-like interactions are systematically studied by molecular dynamics simulations
Summary
Molecular or colloidal monolayers on interface surfaces, vortices in thin-film semiconductors, two-dimensional electron gas on the surface of liquid helium are typical examples of such systems. Another well-known quasi-two-dimensional system is a complex (dusty) plasma [1, 2] in ground-based conditions. Some microswimmers [9] or even more complex multiagent systems [10,11,12] can be treated as two-dimensional systems of interacting particles. In many cases, such systems form a fluid-like phase
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
