Bleibel, J.Dietrich, SiegfriedDomínguez Álvarez, ÁlvaroOettel, Martin2017-07-172017-07-172011-09-16Bleibel, J., Dietrich, S., Domínguez Álvarez, Á. y Oettel, M. (2011). Shock waves in capillary collapse of colloids: A model system for two-dimensional screened Newtonian gravity. Physical review Letters, 107 (12), 128302-1-128302-4.0031-9007 (impreso)1079-7114 (electrónico)http://hdl.handle.net/11441/62599Using Brownian dynamics simulations, density functional theory, and analytical perturbation theory we study the collapse of a patch of interfacially trapped, micrometer-sized colloidal particles, driven by long-ranged capillary attraction. This attraction is formally analogous to two-dimensional (2D) screened Newtonian gravity with the capillary length ˆλ as the screening length. Whereas the limit ˆλ→∞ corresponds to the global collapse of a self-gravitating fluid, for finite ˆλ we predict theoretically and observe in simulations a ringlike density peak at the outer rim of a disclike patch, moving as an inbound shock wave. Possible experimental realizations are discussed.application/pdfengAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccesshttps://doi.org/10.1103/PhysRevLett.107.128302