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Although the non-equilibrium behaviour of polymer solutions is generally well understood, particularly in extensional flow, there remain several unanswered questions for dilute solutions in simple shear flow, and full quantitative agreement…

软凝聚态物质 · 物理学 2024-06-19 I. Pincus , A. Rodger , J. Ravi Prakash

This paper is devoted to the study of asymptotic behaviors of solutions to the one-dimensional defocusing semilinear wave equation. We prove that finite energy solution tends to zero in the pointwise sense, hence improving the averaged…

偏微分方程分析 · 数学 2020-03-30 Dongyi Wei , Shiwu Yang

This paper is concerned with the large time behavior of the solutions to the Cauchy problem for the one-dimensional compressible Navier-Stokes/Allen-Cahn system with the immiscible two-phase flow initially located near the phase separation…

偏微分方程分析 · 数学 2024-07-08 Yazhou Chen , Qiaolin He , Xiaoding Shi

In this paper, we consider the global regularity and the optimal time decay rate for the 2D isentropic hypo-viscous compressible Navier-Stokes equations. Firstly, we prove that there exists a global strong solution with the small initial…

偏微分方程分析 · 数学 2026-01-13 Chen Liang , Zhaonan Luo , Zhaoyang Yin

The algebraic properties of drift-flux two-phase fluids models without gravitational and wall friction forces are studied. More precisely, for the two fluids we consider equation of states of polytropic gases. We perform a classification…

流体动力学 · 物理学 2021-06-14 Andronikos Paliathanasis

We investigate the Rubinstein-Duke model for polymer reptation by means of density-matrix renormalization group techniques both in absence and presence of a driving field. In the former case the renewal time \tau and the diffusion…

统计力学 · 物理学 2009-11-07 Enrico Carlon , Andrzej Drzewinski , J. M. J. van Leeuwen

Pioneering study of Gamow-Teller (GT) and Fermi matrix elements (MEs) using no-core-configuration-interaction formalism rooted in multi-reference density functional theory is presented. After successful test performed for 6He -> 6Li…

核理论 · 物理学 2016-04-13 M. Konieczka , P. Baczyk , W. Satula

Random sequential adsorption with diffusional relaxation, of two by two square objects on the two-dimensional square lattice is studied by Monte Carlo computer simulation. Asymptotically for large lattice sizes, diffusional relaxation…

凝聚态物理 · 物理学 2010-10-12 Jian-Sheng Wang , Peter Nielaba , Vladimir Privman

An angular analysis of the decay ${\overline{B} \rightarrow D^\ast \ell^- \overline{\nu}_\ell}$, $\ell\in\{e,\mu\}$, is reported using the full $e^+e^-$ collision data set collected by the \babar experiment at the $\Upsilon(4S)$ resonance.…

高能物理 - 实验 · 物理学 2019-09-04 B. Dey

The dynamics of polymers in a random smooth flow is investigated in the framework of the Hookean dumbbell model. The analytical expression of the time-dependent probability density function of polymer elongation is derived explicitly for a…

混沌动力学 · 物理学 2009-11-10 A. Celani , S. Musacchio , D. Vincenzi

This paper is devoted to global existence and optimal decay rate of weak solutions to some inviscid Oldroyd-B models with center diffusion. By virtue of the properties of Calderon-Zygmund operator and the Littlewood-Paley decomposition…

偏微分方程分析 · 数学 2023-07-21 Wenjie Deng , Zhaonan Luo , Zhaoyang Yin

We derive a closed-form false vacuum decay rate at one loop in the thin wall limit, where the true and false vacua are nearly degenerate. We obtain the bounce configuration in $D$ dimensions, together with the Euclidean action with a higher…

高能物理 - 理论 · 物理学 2025-04-04 Aleksandar Ivanov , Marco Matteini , Miha Nemevšek , Lorenzo Ubaldi

In this paper we consider the local energy decay result for wave equations with a short-range potential. It is important to note that one never uses a finite speed of propagation property unlike the historical previous papers. The essential…

偏微分方程分析 · 数学 2022-10-19 Ryo Ikehata

We study the Kohn-Luttinger effect in a two-dimensional (2D) nested Fermion liquid with a repulsive interaction via the renormalization group method and identify the resulting order parameter symmetry. Using the band structure of the 2D…

强关联电子 · 物理学 2009-10-28 Hyok-Jon Kwon

The statistics of polymers advected by a turbulent flow are investigated. To limit the polymer lengths above to coil-stretch transition, a FENE-P type relaxation law is used. The turbulence is modeled by a random strain, delta-correlated in…

混沌动力学 · 物理学 2009-11-07 Jean-Luc Thiffeault

Motivated by problems in control theory concerning decay rates for the damped wave equation $$w_{tt}(x,t) + \gamma(x) w_t(x,t) + (-\Delta + 1)^{s/2} w(x,t) = 0,$$ we consider an analogue of the classical Paneah-Logvinenko-Sereda theorem for…

经典分析与常微分方程 · 数学 2026-04-30 Benjamin Jaye , Rahul Sethi

In this paper, we are concerned with the 2D damped wave-type magnetohydrodynamic system (abbreviated as MHD-wave system). The purpose of this paper is to study the large time behavior of solutions to the MHD-wave system, espesically to…

偏微分方程分析 · 数学 2024-11-05 Yaowei Xie , Huan Yu

In this paper, we study the linear stability properties of perturbations around the homogeneous Couette flow for a 2D isentropic compressible fluid in the domain $\mathbb{T}\times \mathbb{R}$. In the inviscid case there is a generic…

偏微分方程分析 · 数学 2021-08-24 Paolo Antonelli , Michele Dolce , Pierangelo Marcati

After improving the knowledge about residua of the semileptonic form factor at its first two poles we show that $f_+^{D\pi}(q^2)$ is not saturated when compared with the experimental data. To fill the difference we approximate the rest of…

高能物理 - 唯象学 · 物理学 2014-10-20 Damir Becirevic , Alain Le Yaouanc , Arantza Oyanguren , Patrick Roudeau , Francesco Sanfilippo

We use the local orthogonal decomposition technique to derive a generalized finite element method for linear and semilinear parabolic equations with spatial multiscale diffusion coefficient. We consider nonsmooth initial data and a backward…

数值分析 · 数学 2015-05-01 Axel Målqvist , Anna Persson