Results 91 to 100 of about 467,640 (194)

Bond-disordered Anderson model on a two dimensional square lattice - chiral symmetry and restoration of one-parameter scaling

, 2000
Bond-disordered Anderson model in two dimensions on a square lattice is studied numerically near the band center by calculating density of states (DoS), multifractal properties of eigenstates and the localization length. DoS divergence at the band center
A. Eilmes, A. MacKinnon, A. MacKinnon, B. Huckestein, B. Kramer, B.I. Shklovskii, C. Castellani, C.M. Soukoulis, C.M. Soukoulis, C.M. Soukoulis, C.W.J. Beenakker, D. Braun, D.C. Licciardello, D.J. Thouless, E. Abrahams, E. Hofstetter, E. Hofstetter, F. Haake, F. Wegner, F. Wegner, F. Wegner, G. Theodeorou, H. Aoki, H. Aoki, I.Kh. Zarekeshev, J. Cardy, J. Miler, J.-S. Caux, J.L. Pichard, J.L. Pichard, J.T. Chayes, L. Fleishman, M. Inui, M. Schreiber, M. Schreiber, M.H. Jensen, P.A. Lee, P.W. Anderson, P.W. Anderson, P.W. Brouwer, R. Gade, S.N. Evangelou, T. Hasley, V.I. Fal’ko, V.I. Fal’ko, V.Z. Cerovski, Viktor Z. Cerovski, Y. Hatsugai, Y. Morita, Y. Morita   +49 more
core   +1 more source

Scaling in a Nonconservative Earthquake Model of Self-Organised Criticality

, 2001
We numerically investigate the Olami-Feder-Christensen model for earthquakes in order to characterise its scaling behaviour. We show that ordinary finite size scaling in the model is violated due to global, system wide events.
A.A. Middleton, B. Gutenberg, C. Heiden, C. Tebaldi, D.L. Turcotte, G. Grinstein, H. Ceva, H. Jensen, I.M. Jánosi, J.E.S. Socolar, K. Christensen, K. Christensen, K. Christensen, K. Schenk, M. De Menech, Maya Paczuski, P. Bak, P. Bak, P. Bak, P. Grassberger, R. Burridge, R. Pastor-Satorras, R. Pastor-Satorras, S. Field, S. Hainzl, S. Hainzl, S. Lise, Stefano Lise, T. Hwa, V. Frette, W. Klein, Z. Olami, Á. Corral   +32 more
core   +1 more source

Finite-size scaling at infinite-order phase transitions

, 2016
For systems with infinite-order phase transitions, in which an order parameter smoothly becomes nonzero, a new observable for finite-size scaling analysis is suggested.
Barkema, G. T., Duine, R. A., Keesman, Rick, Lamers, Jules   +3 more
core   +1 more source

Crossover scaling in the two-dimensional three-state Potts model

Condensed Matter Physics, 2013
We apply simulated tempering and magnetizing (STM) Monte Carlo simulations to the two-dimensional three-state Potts model in an external magnetic field in order to investigate the crossover scaling behaviour in the temperature-field plane at the Potts ...
T. Nagai, Y. Okamoto, W. Janke
doaj   +1 more source

Improved Phenomenological Renormalization Schemes

, 2001
An analysis is made of various methods of phenomenological renormalization based on finite-size scaling equations for inverse correlation lengths, the singular part of the free energy density, and their derivatives.
B. Kaufman, F. Y. Wu, H. Saleur, H. W. J. Blöte, K. Binder, K. Binder, K. Huang, K. K. Mon, L. Onsager, M. A. Yurishchev, M. A. Yurishchev, M. E. Fisher, M. Fisher, M. Hasenbusch, M. Hasenbusch, M. N. Barber, M. P. Nightingale, M. P. Nightingale, M. P. Nightingale, P. Nightingale, R. B. Potts, R. J. Baxter, R. J. Baxter, R. J. Baxter, R. R. Santos dos, S. Ma, V. Privman, V. Privman, W. Kinzel, Z. Burda   +29 more
core   +2 more sources

Large-N scaling behavior of the quantum fisher information in the Dicke model

, 2015
Quantum Fisher information (QFI) of the reduced two-atom state is employed to capture the quantum criticality of the superradiant phase transition in the Dicke model in the infinite size and finite-$N$ systems respectively.
Chen, Xiang-You, Zhang, Yu-Yu
core   +1 more source

Finite size scaling in CP(N-1) models

, 1993
Finite size effects in Euclidean ${\rm CP}^{N-1}$ models with periodic boundary conditions are investigated by means of the $1/N$ expansion and by Monte Carlo simulations.
Rossi, Paolo, Vicari, Ettore
core   +1 more source

Tensor network finite-size scaling for two-dimensional 3-state clock model

New Journal of Physics
We benchmark recently proposed tensor network based finite-size scaling analysis in ( Phys. Rev. B 2023 107 205123) against two-dimensional classical 3-state clock model.
Debasmita Maiti, Sing-Hong Chan, Pochung Chen   +2 more
doaj   +1 more source

Walking with the Atoms in a Chemical Bond: A Perspective Using Quantum Phase Transition

Entropy
Phase transitions happen at critical values of the controlling parameters, such as the critical temperature in classical phase transitions, and system critical parameters in the quantum case.
Sabre Kais
doaj   +1 more source

Finite-size scaling behaviour in fully-connected equal-coupling multimode photonic networks [PDF]

EPJ Web of Conferences, 2022
Melchert Oliver
doaj   +1 more source