Výsledky vyhledávání - "Ernesto S. Loscar"

Noisy multistate voter model for flocking in finite dimensions

Autor: Gabriel Baglietto, Ernesto S. Loscar, Federico Vazquez

Publikováno v: Physical Review E. 104

We study a model for the collective behavior of self-propelled particles subject to pairwise copying interactions and noise. Particles move at a constant speed $v$ on a two--dimensional space and, in a single step of the dynamics, each particle adopt

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0cc02903c7959e153c0a3cd67cc830cf
https://doi.org/10.1103/physreve.104.034111

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Short-time dynamics in active systems: the Vicsek model

Autor: M Leticia Rubio Puzzo, Ernesto S Loscar, Andrés De Virgiliis, Tomás S Grigera

Publikováno v: Journal of physics. Condensed matter (Online) 34 (2022): 314001-1–314001-10. doi:10.1088/1361-648X/ac7429
info:cnr-pdr/source/autori:Rubio Puzzo M.L.; Loscar E.S.; De Virgiliis A.; Grigera T.S./titolo:Short-time dynamics in active systems: the Vicsek model/doi:10.1088%2F1361-648X%2Fac7429/rivista:Journal of physics. Condensed matter (Online)/anno:2022/pagina_da:314001-1/pagina_a:314001-10/intervallo_pagine:314001-1–314001-10/volume:34

We study the short-time dynamics (STD) of the Vicsek model with vector noise. The study of STD has proved to be very useful in the determination of the critical point, critical exponents, and spinodal points in equilibrium phase transitions. Here we

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dec720b7df6051b3255d46b960edcc52
https://doi.org/10.1088/1361-648x/ac7429

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A multi-state voter model with imperfect copying

Autor: Gabriel Baglietto, Ernesto S. Loscar, Federico Vazquez

Publikováno v: CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET

The voter model with multiple states has found applications in areas as diverse as population genetics, opinion formation, species competition and language dynamics, among others. In a single step of the dynamics, an individual chosen at random copie

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bd05668a35d2cc32ce6e4872642a32d4
http://arxiv.org/abs/1902.07253

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Size effects in finite systems with long-range interactions

Autor: Ernesto S. Loscar, C. M. Horowitz

Publikováno v: CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
SEDICI (UNLP)
Universidad Nacional de La Plata
instacron:UNLP

Small systems consisting of particles interacting with long-range potentials exhibit enormous size effects. The Tsallis conjecture [Tsallis, Fractals 3, 541 (1995)], valid for translationally invariant systems with long-range interactions, states a w

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bfc6484c2c28a6992082579aeac18c2b
https://link.aps.org/doi/10.1103/PhysRevE.97.032103

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Stability limits for the supercooled liquid and superheated crystal of Lennard-Jones particles

Autor: Tomás S. Grigera, Ernesto S. Loscar, Daniel A. Martin

Publikováno v: CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
SEDICI (UNLP)
Universidad Nacional de La Plata
instacron:UNLP

We have studied the limits of stability in the first order liquid-solid phase transition in a Lennard-Jones system by means of the short-time relaxation method and using the bond-orientational order parameter Q6. These limits are compared with the me

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a4a74ad4e554741d1ac17ef6b06bb9e8
https://pubmed.ncbi.nlm.nih.gov/28734310

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Spinodals and critical point using short-time dynamics for a simple model of liquid

Autor: Tomás S. Grigera, C. Gastón Ferrara, Ernesto S. Loscar

Publikováno v: CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET

We have applied the short-time dynamics method to the gas-liquid transition to detect the supercooled gas instability (gas spinodal) and the superheated liquid instability (liquid spinodal). Using Monte Carlo simulation, we have obtained the two spin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1f61511c4b4aec9d761c3be0b465020b
https://aip.scitation.org/doi/10.1063/1.4944926

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Hysteretic effects in the first-order irreversible phase transition of the ZGB model

Autor: Ezequiel V. Albano, Ernesto S. Loscar

Publikováno v: Computer Physics Communications. 180:488-492

The first-order irreversible phase transition (FOIPT) of the ZGB model [Ziff, Gulari, Barshad, Phys. Rev. Lett. 56 (1986) 2553] for the catalytic oxidation of carbon monoxide is studied numerically by using the constant-coverage (CC) ensemble. The CC

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::90a155fa6dc9639230fba55cb5ea0d85
https://doi.org/10.1016/j.cpc.2008.11.026

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Aging and crystallization in a lattice glass model

Autor: Alejandro Seif, Ernesto S. Loscar, Tomás S. Grigera

Publikováno v: CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
SEDICI (UNLP)
Universidad Nacional de La Plata
instacron:UNLP

We have studied a the 3-$d$ lattice glass of Pica Ciamarra, Tarzia, de Candia and Coniglio [Phys.\ Rev.\ E. 67, 057105 (2013)], which has been shown to reproduce several features of the structural glass phenomenology, such as the cage effect, exponen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a633bbf92454836f98fa583c603b7e01
https://journals.aps.org/pre/abstract/10.1103/PhysRevE.91.042302

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Stochastic Resonance and Dynamic First-Order Pseudo-Phase Transitions in the Irreversible Growth of Thin Films under Spatially Periodic Magnetic Fields

Autor: Julián Candia, Ernesto S. Loscar

Publikováno v: SEDICI (UNLP)
Universidad Nacional de La Plata
instacron:UNLP
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET

We study the irreversible growth of magnetic thin films under the influence of spatially periodic fields by means of extensive Monte Carlo simulations. We find first-order pseudo-phase transitions that separate a dynamically disordered phase from a d

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::89edc63c3f1d81e5afb4c138ad8c5b22
http://arxiv.org/abs/1310.5259

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Phase diagram of a cyclic predator-prey model with neutral-pairs exchange

Autor: M. Girardi, Ernesto S. Loscar, Nara Guisoni

Publikováno v: CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET

In this paper we obtain the phase diagram of a four-species predator-prey lattice model by using the proposed gradient method. We consider cyclic transitions between consecutive states, representing invasion or predation, and allowed the exchange bet

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f770b7d14aab4a9ec82a63a2618f5cc6
http://journals.aps.org/pre/abstract/10.1103/PhysRevE.88.022133

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