Results 41 to 50 of about 2,732,958 (292)

An impurity model in a random magnetic field

Kuwait Journal of Science
We explore the destruction of the Kondo interaction due to a random magnetic field. Using entanglement measures, the Kondo length and the impurity entropy are analyzed.
Alkurtass B.
doaj   +1 more source

Creep motion in a random-field Ising model

, 2000
We analyze numerically a moving interface in the random-field Ising model which is driven by a magnetic field. Without thermal fluctuations the system displays a depinning phase transition, i.e., the interface is pinned below a certain critical value of ...
A.A. Middleton, D.S. Fischer, D.S. Fischer, H. Leschhorn, K. D. Usadel, L. Roters, L. Roters, M. Kardar, M.V. Feigel’man, O. Narayan, P. Chauve, R. Bruinsma, S. Lemerle, S. Lübeck, S.F. Edwards, T. Nattermann, T. Nattermann, U. Nowak   +17 more
core   +1 more source

Monte Carlo study of the random-field Ising model

, 1995
Using a cluster-flipping Monte Carlo algorithm combined with a generalization of the histogram reweighting scheme of Ferrenberg and Swendsen, we have studied the equilibrium properties of the thermal random-field Ising model on a cubic lattice in three ...
A. J. Bray, A. M. Ferrenberg, A. M. Ferrenberg, A. M. Ferrenberg, A. Maritan, A. P. Young, A. T. Ogielski, A. T. Ogielski, B. Efron, D. P. Belanger, D. S. Fisher, G. Grinstein, G. Grinstein, G. Parisi, G. T. Barkema, G. T. Barkema, H. Rieger, I. Dayan, J. Bricmont, J. Cardy, J. P. Sethna, J. Z. Imbrie, J. Z. Imbrie, M. E. J. Newman, M. E. J. Newman, M. Gofman, M. Hagen, N. Metropolis, R. H. Swendsen, S. Fishman, T. Nattermann, U. Wolff, Vl. S. Dotsenko   +32 more
core   +1 more source

A Markov Random Field Model for the Restoration of Foggy Images

International Journal of Advanced Robotic Systems, 2014
This paper presents an algorithm to remove fog from a single image using a Markov random field (MRF) framework. The method estimates the transmission map of an image degradation model by assigning labels with a MRF model and then optimizes the map ...
Fan Guo, Jin Tang, Hui Peng
doaj   +1 more source

Critical behavior of the three-state random-field Potts model in three dimensions

Physical Review Research, 2022
Enormous advances have been made in the past 20 years in our understanding of the random-field Ising model (RFIM), and there is now consensus on many aspects of its behavior at least in thermal equilibrium.
Manoj Kumar, Varsha Banerjee, Sanjay Puri, Martin Weigel   +3 more
doaj   +1 more source

Properties of the random field Ising model in a transverse magnetic field

, 1997
We consider the effect of a random longitudinal field on the Ising model in a transverse magnetic field. For spatial dimension $d > 2$, there is at low strength of randomness and transverse field, a phase with true long range order which is destroyed at ...
A. Aharony, A. Aharony, A. Dutta, A.J. Bray, A.P. Young, A.T. Ogielski, D. Boyanovsky, D.P. Belanger, D.S. Fisher, D.S. Fisher, D.S. Fisher, E. Pytte, G. Grinstein, G. Grinstein, H. Rieger, J. Miller, J. Villain, J. Ye, J.Z. Imbrie, J.Z. Imbrie, M. Guo, M.J. Thill, N. Read, Newman, S. Sachdev, S. Sachdev, T. Nattermann, T. Senthil, T. Senthil, T. Senthil, T.R. Kirkpatrick, W. Wu, W. Wu, Y. Imry   +33 more
core   +1 more source

Predicting Chronicity in Children and Adolescents With Newly Diagnosed Immune Thrombocytopenia at the Timepoint of Diagnosis Using Machine Learning‐Based Approaches

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Objectives To identify predictors of chronic ITP (cITP) and to develop a model based on several machine learning (ML) methods to estimate the individual risk of chronicity at the timepoint of diagnosis. Methods We analyzed a longitudinal cohort of 944 children enrolled in the Intercontinental Cooperative immune thrombocytopenia (ITP) Study ...
Severin Kasser, Alice Bizeul, Meera Chitlur, Hugo Donato, Jelena Roganovic, Julia E. Vogt, Thomas Kühne   +6 more
wiley   +1 more source

Random Field Ising Model In and Out of Equilibrium

, 2006
We present numerical studies of zero-temperature Gaussian random-field Ising model (zt-GRFIM) in both equilibrium and non-equilibrium. We compare the no-passing rule, mean-field exponents and universal quantities in 3D (avalanche critical exponents ...
Dahmen, Karin A., Liu, Yang
core   +1 more source

Music modeling with random fields [PDF]

Proceedings of the 26th annual international ACM SIGIR conference on Research and development in informaion retrieval - SIGIR '03, 2003
Recent interest in the area of music information retrieval is exploding. However, very few of the existing music retrieval techniques take advantage of recent developments in statistical modeling. In this report we discuss an application of Random Fields to the problem of statistical modeling of polyphonic music.
Victor Lavrenko, Jeremy Pickens
openaire   +1 more source

Characterizing Parental Concerns About Lasting Impacts of Treatment in Children With B‐Acute Lymphoblastic Leukemia

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background B‐acute lymphoblastic leukemia (B‐ALL) is the most common pediatric cancer, and while most children in high‐resource settings are cured, therapy carries risks for long‐term toxicities. Understanding parents’ concerns about these late effects is essential to guide anticipatory support and inform evolving therapeutic approaches ...
Kellee N. Parker, Sarah W. Alexander, Lisa M. Jacola, Kimberly A. Buff, Kyobin Hwang, Elham Hashemi, Gregory Stoddard, Lindsay A. Jibb   +7 more
wiley   +1 more source