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Shear thickening suspensions of non-Brownian polydisperse particles are simulated in 2D using a discrete element method based algorithm (LF-DEM) at high packing fractions ($\phi$) and large non-dimensional stresses ($\sigma$). Rigidity…

Soft Condensed Matter · Physics 2026-02-11 Sourav Kumar Singh , Vishant Tyagi , Aritra Santra

The U(1) holon-pair boson theory of Lee and Salk(Phys. Rev. B 64, 052501 (2001)) is applied to investigate the quantum scaling behavior of optical conductivity in the two dimensional systems of strongly correlated electrons. We examine the…

Superconductivity · Physics 2007-05-23 Jae-Hyeon Eom , Sung-Sik Lee , Ki-Seok Kim , Sung-Ho Suck Salk

We report tests of various density functionals for ferromagnetic, Fe, Co and Ni with a focus on characterizing the behavior of the so-called strongly constrained and appropriately normed (SCAN) functional. It is found that SCAN is closer in…

Strongly Correlated Electrons · Physics 2019-07-19 Y. Fu , D. J. Singh

In this paper, an inverse method was developed which can, in principle, reconstruct arbitrary permeability, conductivity, thickness, and lift-off with a multi-frequency electromagnetic sensor from inductance spectroscopic measurements. The…

Signal Processing · Electrical Eng. & Systems 2019-05-31 Mingyang Lu , Yuedong Xie , Wenqian Zhu , Anthony Peyton , Wuliang Yin

For a unit-norm frame $F = \{f_i\}_{i=1}^k$ in $\R^n$, a scaling is a vector $c=(c(1),\dots,c(k))\in \R_{\geq 0}^k$ such that $\{\sqrt{c(i)}f_i\}_{i =1}^k$ is a Parseval frame in $\R^n$. If such a scaling exists, $F$ is said to be scalable.…

Functional Analysis · Mathematics 2016-10-12 Alice Chan , Rachel Domagalski , Yeon Hyang Kim , Sivaram K. Narayan , Hong Suh , Xingyu Zhang

In conductor-insulator nanocomposites in which conducting fillers are dispersed in an insulating matrix the electrical connectedness is established by interparticle tunneling or hopping processes. These systems are intrinsically…

Disordered Systems and Neural Networks · Physics 2012-04-27 B. Nigro , C. Grimaldi , M. A. Miller , P. Ryser , T. Schilling

Recent analyses of the field enhancement factor (FEF) from multiple emitters have revealed that the depolarization effect is more persistent with respect to the separation between the emitters than originally assumed. It has been shown…

Mesoscale and Nanoscale Physics · Physics 2018-12-19 Fernando F. Dall'Agnol , Thiago A. de Assis , Richard G. Forbes

We analyze scaling functions in the $3$-$d$, $Z(2)$, $O(2)$ and $O(4)$ universality classes and their finite size dependence using Monte Carlo simulations of improved $\phi^4$ models. Results for the scaling functions are fitted to the…

High Energy Physics - Lattice · Physics 2023-07-25 Frithjof Karsch , Marius Neumann , Mugdha Sarkar

In a computer experiment the choice of suitable estimators to measure a physical quantity plays an important role. We propose a new direct route to determine estimators for observables which do not commute with the Hamiltonian. Our new…

Statistical Mechanics · Physics 2013-07-11 Riccardo Fantoni

Let $\Phi_1$ and $\Phi_2$ be nondecreasing functions from $\mathbb{R_+}=(0,\infty)$ onto itself. For $i=1,2$ and $\gamma \in \mathbb{R}$, define the Orlicz class $L_{\Phi_{i}}(\mathbb{R_+})$ to be the set of Lebesgue-measurable functions…

Functional Analysis · Mathematics 2017-08-07 Ron Kerman , Rama Rawat , Rajesh K. Singh

For a Borel measure and a sequence of partitions on the unit interval, we define a multifractal spectrum based on coarse Holder regularity. Specifically, the coarse Holder regularity values attained by a given measure and with respect to a…

Mathematical Physics · Physics 2011-04-28 Kate E. Ellis , Michel L. Lapidus , Michael C. Mackenzie , John A. Rock

We derive, from conformal invariance and quantum gravity, the multifractal spectrum f(alpha,c) of the harmonic measure (or electrostatic potential, or diffusion field) near any conformally invariant fractal in two dimensions, corresponding…

Statistical Mechanics · Physics 2016-08-31 Bertrand Duplantier

We have conducted a study of the femtoscopic correlation functions for the $D^0D^{*+}$ and $D^+D^{*0}$ channels that build the $T_{cc}$ state. We develop a formalism that allows us to factorize the scattering amplitudes outside the…

High Energy Physics - Phenomenology · Physics 2023-03-13 I. Vidana , A. Feijoo , M. Albaladejo , J. Nieves , E. Oset

Let $X_1, \ldots, X_n$ be probability spaces, let $X$ be their direct product, let $\phi_1, \ldots, \phi_m: X \longrightarrow {\Bbb C}$ be random variables, each depending only on a few coordinates of a point $x=(x_1, \ldots, x_n)$, and let…

Probability · Mathematics 2024-06-28 Alexander Barvinok

We establish sensitivity analysis on the sphere. We present formulas that allow us to decompose a function $f\colon \mathbb S^d\rightarrow \mathbb R$ into a sum of terms $f_{\boldsymbol u,\boldsymbol \xi}$. The index $\boldsymbol u$ is a…

Numerical Analysis · Mathematics 2026-05-15 Laura Weidensager

We calculate exactly the first cumulants of the integrated current and of the activity (which is the total number of changes of configurations) of the symmetric simple exclusion process (SSEP) on a ring with periodic boundary conditions.…

Statistical Mechanics · Physics 2010-05-11 Cécile Appert-Rolland , Bernard Derrida , Vivien Lecomte , Frédéric Van Wijland

The $f^{-\gamma}$ sloped current noise power spectra, observed in organic semiconductors, have been interpreted within a {\em variable range hopping} mechanism of the fluctuations. The relative current noise power spectral density ${\cal…

Disordered Systems and Neural Networks · Physics 2009-03-20 A. Carbone , B. K. Kotowska , D. Kotowski

We study the diffusive behavior of biased Brownian particles in a two dimensional confined geometry filled with the freezing obstacles. The transport properties of these particles are investigated for various values of the obstacles density…

Biological Physics · Physics 2020-07-16 Narender Khatri , P. S. Burada

The finite-size scaling (FSS) theory for continuous phase transitions has been useful in determining the critical behavior from the size dependent behaviors of thermodynamic quantities. When the phase transition is discontinuous, however,…

Statistical Mechanics · Physics 2015-05-19 Y. S. Cho , S. -W. Kim , J. D. Noh , B. Kahng , D. Kim

Both the mass spectra and the wave functions of the light pseudoscalar ($\pi,K,\eta,\eta'$) and vector($\rho,K^{*},\omega,\phi$) mesons are analyzed within the framework of the light-cone constituent quark model. A gaussian radial wave…

High Energy Physics - Phenomenology · Physics 2009-10-30 Ho-Meoyng Choi , Chueng-Ryong Ji