Results 51 to 60 of about 698,300 (306)
An impurity model in a random magnetic field
Kuwait Journal of ScienceWe 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.
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Poisson Random Fields for Dynamic Feature Models [PDF]
J. Mach. Learn. Res., 2016 We present the Wright-Fisher Indian buffet process (WF-IBP), a probabilistic model for time-dependent data assumed to have been generated by an unknown number of latent features. This model is suitable as a prior in Bayesian nonparametric feature allocation models in which the features underlying the observed data exhibit a dependency structure over ...
Perrone, V, Jenkins, P, Spano, D, Teh, Y
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The random phase property and the Lyapunov Spectrum for disordered multi-channel systems [PDF]
, 2010 A random phase property establishing in the weak coupling limit a link between quasi-one-dimensional random Schrödinger operators and full random matrix theory is advocated.
Römer, Rudolf A., Schulz-Baldes, H.
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Network model of localization in a random magnetic field [PDF]
Physical Review B, 1995 We consider a network model of snake states to study the localization problem of non-interacting fermions in a random magnetic field with zero average. After averaging over the randomness, the network of snake states is mapped onto $M$ coupled SU$(2N)$ spin chains in the $N \rightarrow 0$ limit.
Kim, Yong Baek +2 more
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Anisotropic Heisenberg model for the mixed spin-3/2 and spin-1/2 under random crystal field
Condensed Matter Physics, 2021 Thermodynamic properties of the mixed spin-3/2 and spin-1/2 Heisenberg model are examined within the Oguchi approximation in the presence of a random crystal-field (RCF).
D. Sabi Takou +3 more
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Critical exponents of the random field hierarchical model [PDF]
Physical Review B, 2014 We have studied the one dimensional Dyson hierarchical model in presence of a random field. This is a long range model where the interactions scale with the distance with a power law-like form J(r) ~ r^{-ρ} and we can explore mean field and non-mean field behavior by changing ρ.
PARISI, Giorgio, Jacopo Rocchi
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FEBS Letters, EarlyView.The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li +2 more
wiley +1 more source
Concentration Inequalities for Functions of Gibbs Fields with Application to Diffraction and Random Gibbs Measures [PDF]
, 2002 We derive useful general concentration inequalities for functions of Gibbs fields in the uniqueness regime. We also consider expectations of random Gibbs measures that depend on an additional disorder field, and prove concentration w.r.t.
Külske, Christof +2 more
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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
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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 +3 more
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