Collective lattice excitations in the dynamic route for melting hydrodynamic 2D-crystals
Abstract
Surface stiffnesses engender steady patterns of Faraday waves (FWs), so called hydrodynamic crystals as correspond to ordered wave lattices made of discrete subharmonics under monochromatic driving. Mastering rules are both inertia-imposed parametric resonance for frequency-halving together with rigidity-driven nonlinearity for wavefield self-focusing. They harness the discretization needed for coherent FW-packets to localize in space and time. Collective lattice excitations are observed as dispersionless propagating dislocations that lead periodic modulations arising from explicit symmetry breaking. In a field theory perspective, a halving genesis for the collective distorting modes is revealed as the natural pathway for hydrodynamic crystal melting.
Keywords
Cite
@article{arxiv.2404.15912,
title = {Collective lattice excitations in the dynamic route for melting hydrodynamic 2D-crystals},
author = {Mikheil Kharbedia and Niccolò Caselli and Macarena Calero and Lara H. Moleiro and Jesús F. Castillo and José A. Santiago and Diego Herráez-Aguilar and Francisco Monroy},
journal= {arXiv preprint arXiv:2404.15912},
year = {2024}
}