TY - DATA
AU - Guseinov, Ruslan
ID - 8761
TI - Supplementary data for "Computational design of cold bent glass façades"
ER -
TY - JOUR
AB - This paper introduces a simple method for simulating highly anisotropic elastoplastic material behaviors like the dissolution of fibrous phenomena (splintering wood, shredding bales of hay) and materials composed of large numbers of irregularly‐shaped bodies (piles of twigs, pencils, or cards). We introduce a simple transformation of the anisotropic problem into an equivalent isotropic one, and we solve this new “fictitious” isotropic problem using an existing simulator based on the material point method. Our approach results in minimal changes to existing simulators, and it allows us to re‐use popular isotropic plasticity models like the Drucker‐Prager yield criterion instead of inventing new anisotropic plasticity models for every phenomenon we wish to simulate.
AU - Schreck, Camille
AU - Wojtan, Christopher J
ID - 8765
IS - 2
JF - Computer Graphics Forum
KW - Computer Networks and Communications
SN - 0167-7055
TI - A practical method for animating anisotropic elastoplastic materials
VL - 39
ER -
TY - JOUR
AB - The “procedural” approach to animating ocean waves is the dominant algorithm for animating larger bodies of water in
interactive applications as well as in off-line productions — it provides high visual quality with a low computational demand. In this paper, we widen the applicability of procedural water wave animation with an extension that guarantees the satisfaction of boundary conditions imposed by terrain while still approximating physical wave behavior. In combination with a particle system that models wave breaking, foam, and spray, this allows us to naturally model waves interacting with beaches and rocks. Our system is able to animate waves at large scales at interactive frame rates on a commodity PC.
AU - Jeschke, Stefan
AU - Hafner, Christian
AU - Chentanez, Nuttapong
AU - Macklin, Miles
AU - Müller-Fischer, Matthias
AU - Wojtan, Christopher J
ID - 8766
IS - 8
JF - Computer Graphics forum
TI - Making procedural water waves boundary-aware
VL - 39
ER -
TY - JOUR
AB - Resources are rarely distributed uniformly within a population. Heterogeneity in the concentration of a drug, the quality of breeding sites, or wealth can all affect evolutionary dynamics. In this study, we represent a collection of properties affecting the fitness at a given location using a color. A green node is rich in resources while a red node is poorer. More colors can represent a broader spectrum of resource qualities. For a population evolving according to the birth-death Moran model, the first question we address is which structures, identified by graph connectivity and graph coloring, are evolutionarily equivalent. We prove that all properly two-colored, undirected, regular graphs are evolutionarily equivalent (where “properly colored” means that no two neighbors have the same color). We then compare the effects of background heterogeneity on properly two-colored graphs to those with alternative schemes in which the colors are permuted. Finally, we discuss dynamic coloring as a model for spatiotemporal resource fluctuations, and we illustrate that random dynamic colorings often diminish the effects of background heterogeneity relative to a proper two-coloring.
AU - Kaveh, Kamran
AU - McAvoy, Alex
AU - Chatterjee, Krishnendu
AU - Nowak, Martin A.
ID - 8767
IS - 11
JF - PLOS Computational Biology
KW - Ecology
KW - Modelling and Simulation
KW - Computational Theory and Mathematics
KW - Genetics
KW - Ecology
KW - Evolution
KW - Behavior and Systematics
KW - Molecular Biology
KW - Cellular and Molecular Neuroscience
SN - 1553-734X
TI - The Moran process on 2-chromatic graphs
VL - 16
ER -
TY - JOUR
AB - One of the hallmarks of quantum statistics, tightly entwined with the concept of topological phases of matter, is the prediction of anyons. Although anyons are predicted to be realized in certain fractional quantum Hall systems, they have not yet been unambiguously detected in experiment. Here we introduce a simple quantum impurity model, where bosonic or fermionic impurities turn into anyons as a consequence of their interaction with the surrounding many-particle bath. A cloud of phonons dresses each impurity in such a way that it effectively attaches fluxes or vortices to it and thereby converts it into an Abelian anyon. The corresponding quantum impurity model, first, provides a different approach to the numerical solution of the many-anyon problem, along with a concrete perspective of anyons as emergent quasiparticles built from composite bosons or fermions. More importantly, the model paves the way toward realizing anyons using impurities in crystal lattices as well as ultracold gases. In particular, we consider two heavy electrons interacting with a two-dimensional lattice crystal in a magnetic field, and show that when the impurity-bath system is rotated at the cyclotron frequency, impurities behave as anyons as a consequence of the angular momentum exchange between the impurities and the bath. A possible experimental realization is proposed by identifying the statistics parameter in terms of the mean-square distance of the impurities and the magnetization of the impurity-bath system, both of which are accessible to experiment. Another proposed application is impurities immersed in a two-dimensional weakly interacting Bose gas.
AU - Yakaboylu, Enderalp
AU - Ghazaryan, Areg
AU - Lundholm, D.
AU - Rougerie, N.
AU - Lemeshko, Mikhail
AU - Seiringer, Robert
ID - 8769
IS - 14
JF - Physical Review B
SN - 2469-9950
TI - Quantum impurity model for anyons
VL - 102
ER -