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Examining phase stabilities and phase equilibria in strongly correlated materials asks for a next level in the many-body extensions to the local-density approximation (LDA) beyond mainly spectroscopic assessments. Here we put the…

材料科学 · 物理学 2013-04-26 Daniel Grieger , Christoph Piefke , Oleg E. Peil , Frank Lechermann

We study percolation transition of run and tumble particles (RTPs) on a two dimensional square lattice. RTPs in these models run to the nearest neighbour along their internal orientation with unit rate, and to other nearest neighbours with…

统计力学 · 物理学 2024-12-30 Soumya K. Saha , Aikya Banerjee , P. K. Mohanty

We introduce an interface model with q-fold symmetry to study the nonequilibrium phase transition (NPT) from an active to an inactive state at the bottom layer. In the model, q different species of particles are deposited or are evaporated…

统计力学 · 物理学 2007-05-23 B. Kahng , S. Park

We consider the semi-infinite (q)-state Potts model. We prove, for large (q), the existence of a first order surface phase transition between the ordered phase and the the so-called "new low temperature phase" predicted in \cite{Li}, in…

统计力学 · 物理学 2015-06-24 Christophe Dobrovolny , Lahoussine Laanait , Jean Ruiz

The competition and interplay between charge-density wave and superconductivity have become a central subject for quasi-2D compounds. Some of these materials, such as the transition-metal dichalcogenides, exhibit strong electron-phonon…

强关联电子 · 物理学 2022-04-13 Maykon V. Araújo , José P. de Lima , Sandro Sorella , Natanael C. Costa

We study the scaling behavior of the R\'enyi entanglement entropy with smooth boundaries at the phase transition point of the two-dimensional $J-Q_3$ model. Using the recently developed scaling formula [Deng {\it et al.}, Phys. Rev. B…

强关联电子 · 物理学 2024-09-19 Zehui Deng , Lu Liu , Wenan Guo , Hai-qing Lin

The q-state Potts model on a diamond chain has mathematical significance in analyzing phase transitions and critical behaviors in diverse fields, including statistical physics, condensed matter physics, and materials science. By focusing on…

统计力学 · 物理学 2023-10-30 Yury Panov , Onofre Rojas

Rigidity Percolation is studied analytically on randomly bonded networks with two types of nodes, respectively with coordination numbers $z_1$ and $z_2$, and with $g_1$ and $g_2$ degrees of freedom each. For certain cases that model…

无序系统与神经网络 · 物理学 2015-06-17 Cristian F. Moukarzel

The phase transitions at finite temperatures in the systems described by the Bose-Fermi-Hubbard model are investigated in this work in the framework of the selfconsistent random phase approximation. The case of the hard-core bosons is…

其他凝聚态物理 · 物理学 2010-09-07 T S Mysakovych

Surface roughness significantly impacts transition to turbulence, especially over high-speed, blunt geometries where surface ablation is necessary to mitigate heat loads during atmospheric entry. Inspired by sand-grain roughness experiments…

流体动力学 · 物理学 2026-02-04 Sean Dungan , Mateus Braga , Robyn Macdonald , Christoph Brehm

We present a stability analysis of the 2D t-t' Hubbard model on a square lattice for various values of the next-nearest-neighbor hopping t' and electron concentration. Using the free energy expression, derived by means of the flow equations…

强关联电子 · 物理学 2009-11-07 V. Hankevych , F. Wegner

We study nonequilibrium roughening during compressive plastic flow of initially flat Cu$_{50}$Zr$_{50}$ metallic glass using large-scale molecular dynamics simulations. Roughness emerges at atomically flat interfaces beyond the yield point…

材料科学 · 物理学 2022-07-26 Wolfram G. Nöhring , Adam R. Hinkle , Lars Pastewka

We study the effect of interfacial phenomena in two-dimensional perfect and random (or disordered) $q$-state Potts models with continuous phase transitions, using, mainly, Monte Carlo techniques. In particular, for the total interfacial…

统计力学 · 物理学 2015-08-10 N. G. Fytas , A. Malakis , W. Selke , L. N. Shchur

The influence of surface roughness on transition to turbulence in a Mach 4.5 boundary layer is studied using direct numerical simulations. Transition is initiated by the nonlinearly most dangerous inflow disturbance, which causes the…

流体动力学 · 物理学 2023-07-19 Reza Jahanbakhshi , Tamer A. Zaki

We study the effect of varying strength, $\delta$, of bond randomness on the phase transition of the three-dimensional Potts model for large $q$. The cooperative behavior of the system is determined by large correlated domains in which the…

统计力学 · 物理学 2010-08-09 M. T. Mercaldo , J-Ch. Anglès d'Auriac , F. Iglói

We investigate by means of Monte Carlo simulations the fully connected p-state Potts model for different system sizes in order to see how the static and dynamic properties of a finite model compare with the, exactly known, behavior of the…

统计力学 · 物理学 2009-11-07 Claudio Brangian , Walter Kob , Kurt Binder

We study the quantum criticality at finite temperature for three two-dimensional (2D) $JQ_3$ models using the first principle nonperturbative quantum Monte Carlo calculations (QMC). In particular, the associated universal quantities are…

强关联电子 · 物理学 2022-04-27 J. -H. Peng , D. -R. Tan , L. -W. Huang , F. -J. Jiang

A $2D$ model describing depinning of an interface from a rough, self-affine substrate, is studied by transfer matrix methods. The phase diagram is determined for several values of the roughness exponent, $\zeta_S$, of the attractive wall.…

统计力学 · 物理学 2015-06-25 G. Giugliarelli , A. L. Stella

The percolation of Potts spins with equal values in Potts model on graphs (networks) is considered. The general method for finding the Potts clusters size distributions is developed. It allows for full description of percolation transition…

统计力学 · 物理学 2020-08-20 P. N. Timonin

We study the low-temperature behavior and the phase transition of a thin film by Monte Carlo simulation. The thin film has a simple cubic lattice structure where each site is occupied by a Potts parameter which indicates the molecular…

统计力学 · 物理学 2015-06-11 Danh-Tai Hoang , Maciej Kasperski , Henryk Puszkarski , H. T. Diep