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This paper considers an undirected polymer chain on $\mathbb{Z}^d$, $d \geq 2$, with i.i.d.\ random charges attached to its constituent monomers. Each self-intersection of the polymer chain contributes an energy to the interaction…

数学物理 · 物理学 2018-02-14 Quentin Berger , Frank den Hollander , Julien Poisat

A dilute homogeneous 3D Fermi gas in the ground state is considered for the case of a repulsive pairwise interaction. The low-density (dilution) expansions for the kinetic and interaction energies of the system in question are calculated up…

统计力学 · 物理学 2009-11-10 A. A. Shanenko

We focus on mesoscopic dislocation patterning via a continuum dislocation dynamics theory (CDD) in three dimensions (3D). We study three distinct physically motivated dynamics which consistently lead to fractal formation in 3D with rather…

统计力学 · 物理学 2015-03-19 Yong S. Chen , Woosong Choi , Stefanos Papanikolaou , Matthew Bierbaum , James P. Sethna

The scaling properties of self-avoiding polymerized 2-dimensional membranes are studied via renormalization group methods based on a multilocal operator product expansion. The renormalization group functions are calculated to second order.…

凝聚态物理 · 物理学 2009-10-28 Kay Joerg Wiese , Francois David

The low-energy theory on the world volume of parallel static D3-branes of type 0 strings is the Yang-Mills theory with six scalar fields in the adjoint representation. One-loop corrections in this theory induce Coleman-Weinberg effective…

高能物理 - 理论 · 物理学 2009-10-31 K. Zarembo

We calculate the mean end-to-end distance ($R$) of a self-avoiding polymer encapsulated in an infinitely long cylinder with radius $D$. A self-consistent perturbation theory is used to calculate $R$ as a function of $D$ for impenetrable…

软凝聚态物质 · 物理学 2016-08-31 G. Morrison , D. Thirumalai

We study the viscoelastic properties of highly entangled, flexible, self-propelled polymers using Brownian dynamics simulations. Our results show that the active motion of the polymer increases the height of the stress plateau by orders of…

软凝聚态物质 · 物理学 2023-10-05 Davide Breoni , Christina Kurzthaler , Benno Liebchen , Hartmut Löwen , Suvendu Mandal

We derive exact relations for $N$ spin-1/2 fermions with zero-range or short-range interactions, in continuous space or on a lattice, in $2D$ or in $3D$, in any external potential. Some of them generalize known relations between energy,…

量子气体 · 物理学 2019-03-20 Félix Werner , Yvan Castin

We derive the exact generating function for planar maps (genus zero fatgraphs) with vertices of arbitrary even valence and with two marked points at a fixed geodesic distance. This is done in a purely combinatorial way based on a bijection…

统计力学 · 物理学 2010-04-05 J. Bouttier , P. Di Francesco , E. Guitter

We calculate the leading order interactions of massless D-brane excitations. Their 4-point functions are found to be identical to those found in type I theory. The amplitude for two massless D-brane fluctuations to produce a massless closed…

高能物理 - 理论 · 物理学 2016-09-06 Akikazu Hashimoto , Igor R. Klebanov

We revisit the smallest non-physical singularity of the hard-sphere model in one dimension, also known as Tonks gas. We give an explicit expression of the free energy and reduced correlations at negative real fugacity and elaborate the…

数学物理 · 物理学 2015-04-13 Christoph Hofer-Temmel

We study the interaction problem of a linear polymer chain, floating in fractal containers that belong to the three-dimensional Sierpinski gasket (3D SG) family of fractals, with a surface-adsorbed linear polymer chain. Each member of the…

统计力学 · 物理学 2009-11-11 Ivan Zivic

The one dimensional direct polymer in random media model is investigated using a variational approach in the replica space. We demonstrate numerically that the stable point is a maximum and the corresponding statistical properties for the…

无序系统与神经网络 · 物理学 2007-05-23 Andrea Pagnani

We present a simple analytical theory of flexible polymer chain dissolved in a good solvent, carrying permanent freely oriented dipoles on the monomers. We take into account the dipole correlations within the random phase approximation…

软凝聚态物质 · 物理学 2017-03-17 Yu. A. Budkov , N. N. Kalikin , A. L. Kolesnikov

We investigate semiclassical properties of space-time geometry of the low energy limit of reduced four dimensional supersymmetric Yang-Mills integrals using Monte-Carlo simulations. The limit is obtained by an one-loop approximation of the…

高能物理 - 理论 · 物理学 2009-11-11 Zdzislaw Burda , Bengt Petersson , Marc Wattenberg

The mathematical derivation of the mean square radius of gyration, <s2x>, of branched polymers is reinvestigated from a kinetic-equation-point of view. In particular we derive the corresponding quantity of the A-R-Bf-1 model; the result…

软凝聚态物质 · 物理学 2014-02-27 Kazumi Suematsu

A key assumption of polymer physics is that the random chains polymers extend in flow. Recent experimental evidence has shown that polymer chains compress in Couette flow in a manner counter to expectation. Here, scaling arguments developed…

软凝聚态物质 · 物理学 2018-06-05 Dave E. Dunstan

For a graph G, the generating function of rooted forests, counted by the number of connected components, can be expressed in terms of the eigenvalues of the graph Laplacian. We generalize this result from graphs to cell complexes of…

组合数学 · 数学 2016-11-21 Olivier Bernardi , Caroline J. Klivans

The statistical mechanics of polymer loops entangled in the two-dimensional array of randomly distributed obstacles of infinite length is discussed. The area of the loop projected to the plane perpendicular to the obstacles is used as a…

凝聚态物理 · 物理学 2009-10-28 Matthias Otto , Thomas A. Vilgis

The predictions of the polymer mode coupling theory for the finite size corrections to the transport coefficients of entangled polymeric systems are tested in comparisons with various experimental data. It is found that quantitative…

凝聚态物理 · 物理学 2009-10-30 Matthias Fuchs , Kenneth S. Schweizer