Zobrazeno 1 - 10
of 98
pro vyhledávání: '"Ortiz-Ambriz, Antonio"'
Autor:
Cereceda-Lóopez, Eric, Ostinato, Mattia, Ortiz-Ambriz, Antonio, Straube, Arthur V., Palassini, Matteo, Tierno, Pietro
In our combined experimental, theoretical and numerical work, we study the out of equilibrium deformations in a shrinking ring of optically trapped, interacting colloidal particles. Steerable optical tweezers are used to confine dielectric microparti
Externí odkaz:
http://arxiv.org/abs/2312.14047
We combine experiments and numerical simulations to investigate the low energy states and the emergence of topological defects in an artificial colloidal ice in the Cairo geometry. This type of geometry is characterized by a mixed coordination ($z$),
Externí odkaz:
http://arxiv.org/abs/2305.09769
Autor:
Lips, Dominik, Cereceda-López, Eric, Ortiz-Ambriz, Antonio, Tierno, Pietro, Ryabov, Artem, Maass, Philipp
Publikováno v:
Soft Matter, 2022
The flow-driven transport of interacting micron-sized particles occurs in many soft matter systems spanning from the translocation of proteins to moving emulsions in microfluidic devices. Here we combine experiments and theory to investigate the coll
Externí odkaz:
http://arxiv.org/abs/2208.10798
Autor:
Cereceda-López, Eric, Lips, Dominik, Ortiz-Ambriz, Antonio, Ryabov, Artem, Maass, Philipp, Tierno, Pietro
Publikováno v:
Phys. Rev. Lett. 127, 214501 (2021)
Hydrodynamic interactions between fluid-dispersed particles are ubiquitous in soft matter and biological systems and they give rise to intriguing collective phenomena. While it was reported that these interactions can facilitate force-driven particle
Externí odkaz:
http://arxiv.org/abs/2110.05097
Autor:
Villada-Balbuena, Alejandro, Ortiz-Ambriz, Antonio, Castro-Villarreal, Pavel, Tierno, Pietro, Castañeda-Priego, Ramón, Méndez-Alcaraz, José Miguel
Publikováno v:
Phys. Rev. Research 3, 033246 (2021)
In colloidal systems, Brownian motion emerges from the massive separation of time and length scales associated to characteristic dynamics of the solute and solvent constituents. This separation of scales produces several temporal regimes in the collo
Externí odkaz:
http://arxiv.org/abs/2106.02908
The effect of boundaries and how these can be used to influence the bulk behaviour in geometrically frustrated systems are both long-standing puzzles, often relegated to secondary role. Here we use numerical simulations and "proof of concept" experim
Externí odkaz:
http://arxiv.org/abs/2104.03171
Publikováno v:
In Journal of Magnetism and Magnetic Materials 1 February 2024 591
Based on (overdamped) Stokesian dynamics simulations and video microscopy experiments, we study the non equilibrium dynamics of a sheared colloidal cluster, which is confined to a two-dimensional disk. The experimental system is composed of a mixture
Externí odkaz:
http://arxiv.org/abs/2007.04601
Autor:
Calero, Carles, García-Torres, José, Ortiz-Ambriz, Antonio, Sagués, Francesc, Pagonabarraga, Ignacio, Tierno, Pietro
In this manuscript we describe the realization of a minimal hybrid microswimmer, composed of a ferromagnetic nanorod and a paramagnetic microsphere. The unbounded pair is propelled in water upon application of a swinging magnetic field that induces a
Externí odkaz:
http://arxiv.org/abs/2007.02856
Autor:
Oğuz, Erdal C., Ortiz-Ambriz, Antonio, Shem-Tov, Hadas, Babià-Soler, Eric, Tierno, Pietro, Shokef, Yair
Publikováno v:
Phys. Rev. Lett. 124, 238003 (2020)
Recovery of ground-state degeneracy in two-dimensional square ice is a significant challenge in the field of geometric frustration with far-reaching fundamental implications, such as realization of vertex models and understanding the effect of dimens
Externí odkaz:
http://arxiv.org/abs/2002.00755