Rafael Delgado-Buscalioni

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Complex soft matter systems can be efficiently studied with the help of adaptive resolution simulation methods, concurrently employing two levels of resolution in different regions of the simulation domain. The nonmatching properties of high- and low-resolution models, however, lead to thermodynamic imbalances between the system's subdomains. Such(More)
An operational procedure is presented to compute explicitly the different terms in the generalized Langevin equation (GLE) for a few relevant variables obtained within Mori-Zwanzig formalism. The procedure amounts to introducing an artificial controlled parameter which can be tuned in such a way that the so-called projected dynamics becomes explicit and the(More)
Adaptive resolution schemes allow the simulation of a molecular fluid treating simultaneously different subregions of the system at different levels of resolution. In this work we present a new scheme formulated in terms of a global Hamiltonian. Within this approach equilibrium states corresponding to well-defined statistical ensembles can be generated(More)
We develop a Fluctuating Immersed Boundary (FIB) method for performing Brownian dynamics simulations of confined particle suspensions. Unlike traditional methods which employ analytical Green's functions for Stokes flow in the confined geometry, the FIB method uses a fluctuating finite-volume Stokes solver to generate the action of the response functions(More)
Florencio Balboa, John B. Bell, Rafael Delgado-Buscalioni, Aleksandar Donev, ∗ Thomas Fai, Boyce Griffith, and Charles S. Peskin 1Departamento de F́ısica Teórica de la Materia Condensada, Univeridad Autónoma de Madrid, Madrid 28049, Spain 2Center for Computational Science and Engineering, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720 3Courant(More)
E. Chacón,1,2,* E. M. Fernández,1 D. Duque,3,† R. Delgado-Buscalioni,3 and P. Tarazona3,2 1Instituto de Ciencia de Materiales de Madrid, CSIC, E-28049 Madrid, Spain 2Instituto Nicolás Cabrera, Universidad Autónoma de Madrid, E-28049 Madrid, Spain 3Departamento de Física Teórica de la Materia Condensada (C-V), Universidad Autónoma de Madrid, E-28049 Madrid,(More)
The Adaptive Resolution Scheme (AdResS) is a hybrid scheme that allows to treat a molecular system with different levels of resolution depending on the location of the molecules. The construction of a Hamiltonian based on the this idea (H-AdResS) allows one to formulate the usual tools of ensembles and statistical mechanics. We present a number of exact and(More)
Florencio Balboa Usabiaga, Rafael Delgado-Buscalioni, Boyce E. Griffith, 3 and Aleksandar Donev ∗ Departamento de F́ısica Teórica de la Materia Condensada, Condensed Matter Physics Center (IFIMAC), Univeridad Autónoma de Madrid, Madrid 28049, Spain Leon H. Charney Division of Cardiology, Department of Medicine, New York University School of Medicine, New(More)
This work presents an intermediate resolution model of the hydrodynamics of colloidal particles based on a mixed Eulerian-Lagrangian formulation. The particle is constructed with a small set of overlapping Peskin's Immersed Boundary kernels (blobs) which are held together by springs to build up a particle impenetrable core. Here, we used 12 blobs placed in(More)