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Structure functions and polarization observables in elastic scattering of longitudinally polarized electron on polarized deuteron are considered within approximation of one-photon + two-photon exchange. It is shown that contribution of…

Hopping transport in a one-dimensional system is studied numerically. A fast algorithm is devised to find the lowest-resistance path at arbitrary electric field. Probability distribution functions of individual resistances on the path and…

无序系统与神经网络 · 物理学 2009-10-16 A. S. Rodin , M. M. Fogler

It has been recently noticed that transverse momenta ($p_T$) distributions observed in high energy production processes exhibit remarkably universal scaling behavior. This is seen when they are in some suitable variable, replacing the usual…

高能物理 - 唯象学 · 物理学 2015-04-03 M. Rybczynski , Z. Wlodarczyk , G. Wilk

Recently, the number of non-standard percolation models has proliferated. In all these models, there exists a phase transition at which long range connectivity is established, if local connectedness increases through a threshold $p_c$. In…

统计力学 · 物理学 2024-01-11 Mohadeseh Feshanjerdi , Peter Grassberger

We study the dynamics of a Sokoban random walker moving in a disordered medium with obstacle density $\rho$. In contrast to the classic model of de Gennes with static obstacles that exhibits a percolation transition, the Sokoban walker is…

统计力学 · 物理学 2026-01-27 Prashant Singh , David A. Kessler , Eli Barkai

We investigate the Mott transitions in two-orbital Hubbard systems. Applying the dynamical mean field theory and the self-energy functional approach, we discuss the stability of itinerant quasi-particle states in each band. It is shown that…

强关联电子 · 物理学 2009-11-11 A. Koga , K. Inaba , N. Kawakami

We study scalar and vector exchange terms in out-of-time-order correlators (OTOCs) holographically. By applying a computational method in graviton exchange, we analyze exponential behaviors in scalar and vector exchange terms at late times.…

高能物理 - 理论 · 物理学 2021-04-28 Keun-Young Kim , Kyung-Sun Lee , Mitsuhiro Nishida

We study models of correlated percolation where there are constraints on the occupation of sites that mimic force-balance, i.e. for a site to be stable requires occupied neighboring sites in all four compass directions in two dimensions. We…

无序系统与神经网络 · 物理学 2013-05-29 M. Jeng , J. M. Schwarz

Modern machine learning systems rely on large datasets to attain broad generalization, and this often poses a challenge in robot learning, where each robotic platform and task might have only a small dataset. By training a single policy…

机器人学 · 计算机科学 2024-08-22 Ria Doshi , Homer Walke , Oier Mees , Sudeep Dasari , Sergey Levine

An influence of the localization of itinerant electrons induced by correlated hopping on the electronic charge and heat transport is discussed for the lightly doped Mott insulator phase of the Falicov-Kimball model. The case of strongly…

强关联电子 · 物理学 2020-03-05 D. A. Dobushovskyi , A. M. Shvaika

We study the distributions of traveling length l and minimal traveling time t through two-dimensional percolation porous media characterized by long-range spatial correlations. We model the dynamics of fluid displacement by the convective…

无序系统与神经网络 · 物理学 2009-11-07 A. D. Araujo , A. A. Moreira , H. A. Makse , H. E. Stanley , J. S. Andrade

We consider resonant transport through a molecular quantum dot coupled to a local vibration mode. Applying the non-equilibrium Green function technique in the polaron representation, we develop a non-perturbative scheme to calculate the…

介观与纳米尺度物理 · 物理学 2009-11-13 Alex Zazunov , Thierry Martin

The crossover between dispersion patterns has been frequently observed in various systems. Inspired by the pathway-based kinetic model for E. coli chemotaxis that accounts for the intracellular adaptation process and noise, we propose a…

偏微分方程分析 · 数学 2025-01-07 Zhe Xue , Weiran Sun , Zhennan Zhou , Min Tang

At non-equilibrium phase transitions into absorbing (trapped) states, it is well known that the directed percolation (DP) critical scaling is shared by two classes of models with a single (S) absorbing state and with infinitely many (IM)…

统计力学 · 物理学 2009-11-13 Su-Chan Park , Hyunggyu Park

The crossover behavior of various models exhibiting phase transition to absorbing phase with parity conserving class has been investigated by numerical simulations and cluster mean-field method. In case of models exhibiting Z_2 symmetric…

统计力学 · 物理学 2009-11-13 Geza Odor , Nora Menyhard

Percolation has long served as a model for diverse phenomena and systems. The percolation transition, that is, the formation of a giant cluster on a macroscopic scale, is known as one of the most robust continuous transitions. Recently,…

统计力学 · 物理学 2016-12-08 Deokjae Lee , Young Sul Cho , Byungnam Kahng

Percolation clusters are probably the simplest example for scale--invariant structures which either are governed by isotropic scaling--laws (``self--similarity'') or --- as in the case of directed percolation --- may display anisotropic…

凝聚态物理 · 物理学 2009-10-22 E. Frey , U. C. Täuber , F. Schwabl

The generic mechanisms of anomalous transport in porous media are investigated by computer simulations of two-dimensional model systems. In order to bridge the gap between the strongly idealized Lorentz model and realistic models of porous…

软凝聚态物质 · 物理学 2015-01-08 Simon K. Schnyder , Markus Spanner , Felix Höfling , Thomas Franosch , Jürgen Horbach

In attempt to settle the apparent disagreements between different experimental results, transport data near quantum Hall transitions are interpreted by identifying two distinct conduction regimes. The ``classical'' regime, dominated by…

介观与纳米尺度物理 · 物理学 2009-10-31 Efrat Shimshoni

It is shown that for the hopping regime, the thermopowers in both finite two-terminal and three-terminal systems are governed by the edges of the samples. This is due to the fact that the energy transfer between a transport electron and a…

介观与纳米尺度物理 · 物理学 2013-05-22 J. -H. Jiang , O. Entin-Wohlman , Y. Imry