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We give an elementary new method for obtaining rigorous lower bounds on the connective constant for self-avoiding walks on the hypercubic lattice $Z^d$. The method is based on loop erasure and restoration, and does not require exact…

High Energy Physics - Lattice · Physics 2009-10-22 Takashi Hara , Gordon Slade , Alan D. Sokal

Let $c_n = c_n(d)$ denote the number of self-avoiding walks of length $n$ starting at the origin in the Euclidean nearest-neighbour lattice $\mathbb{Z}^d$. Let $\mu = \lim_n c_n^{1/n}$ denote the connective constant of $\mathbb{Z}^d$. In…

Probability · Mathematics 2021-12-17 Hugo Duminil-Copin , Shirshendu Ganguly , Alan Hammond , Ioan Manolescu

We study the connective constants of weighted self-avoiding walks (SAWs) on infinite graphs and groups. The main focus is upon weighted SAWs on finitely generated, virtually indicable groups. Such groups possess so-called 'height…

Combinatorics · Mathematics 2019-06-06 Geoffrey R. Grimmett , Zhongyang Li

We introduce a new class of models for polymer collapse, given by random walks on regular lattices which are weighted according to multiple site visits. A Boltzmann weight $\omega_l$ is assigned to each $(l+1)$-fold visited lattice site,…

Statistical Mechanics · Physics 2009-11-11 J Krawczyk , T Prellberg , AL Owczarek , A Rechnitzer

The collapse transition of an isolated polymer has been modelled by many different approaches, including lattice models based on self-avoiding walks and self-avoiding trails. In two dimensions, previous simulations of kinetic growth trails,…

Statistical Mechanics · Physics 2009-11-11 A. L. Owczarek , T. Prellberg

We present an algorithm, based on the iteration of conformal maps, that produces independent samples of self-avoiding paths in the plane. It is a discrete process approximating radial Schramm-Loewner evolution growing to infinity. We focus…

Statistical Mechanics · Physics 2010-10-29 Marco Gherardi

By modifying the automaton used by P{\"o}nitz and Tittman [4], and considering loops of length up to 26, we obtain 2.662343 as an upper bound for the connective constant in the lattice Z 2 .

Combinatorics · Mathematics 2022-12-07 Olivier Couronné

We describe the scaling limit of the nearest neighbour prudent walk on the square lattice, which performs steps uniformly in directions in which it does not see sites already visited. We show that the scaling limit is given by the process…

Probability · Mathematics 2018-04-26 V. Beffara , S. Friedli , Y. Velenik

The scaling limit of the two-dimensional self-avoiding walk (SAW) is believed to be given by the Schramm-Loewner evolution (SLE) with the parameter kappa equal to 8/3. The scaling limit of the SAW has a natural parameterization and SLE has…

Probability · Mathematics 2007-05-23 Tom Kennedy

We prove quantitative sub-ballisticity for the self-avoiding walk on the hexagonal lattice. Namely, we show that with high probability a self-avoiding walk of length $n$ does not exit a ball of radius $O(n/\log{n})$. Previously, only a…

Probability · Mathematics 2023-10-27 Dmitrii Krachun , Christoforos Panagiotis

Self-avoiding walks are studied on the 3-simplex fractal lattice as a model of linear polymer conformations in a dilute, non-homogeneous solution. A model is supplemented with bending energies and attractive-interaction energies between…

Statistical Mechanics · Physics 2023-02-21 Dušanka Marčetić

The growth constant for two-dimensional self-avoiding walks on the honeycomb lattice was conjectured by Nienhuis in 1982, and since that time the corresponding results for the square and triangular lattices have been sought. For the square…

Statistical Mechanics · Physics 2016-12-21 Jesper Lykke Jacobsen , Christian R. Scullard , Anthony J. Guttmann

We describe a new algebraic technique for enumerating self-avoiding walks on the rectangular lattice. The computational complexity of enumerating walks of $N$ steps is of order $3^{N/4}$ times a polynomial in $N$, and so the approach is…

High Energy Physics - Lattice · Physics 2008-11-26 A R Conway , I G Enting , A J Guttmann

We study the asymptotic shape of self-avoiding random walks (SAW) on the backbone of the incipient percolation cluster in d-dimensional lattices analytically. It is generally accepted that the configurational averaged probability…

Disordered Systems and Neural Networks · Physics 2009-11-07 Anke Ordemann , Markus Porto , H. Eduardo Roman , Shlomo Havlin

The nearest neighbor contacts between the two halves of an N-site lattice self-avoiding walk offer an unusual example of scaling random geometry: for N going to infinity they are strictly finite in number but their radius of gyration Rc is…

Statistical Mechanics · Physics 2007-05-23 Marco Baiesi , Enzo Orlandini , Attilio L. Stella

Folklore has, that the universal scaling properties of linear polymers in disordered media are well described by the statistics of self-avoiding walks Folklore has, that the universal scaling properties of linear polymers in disordered…

Statistical Mechanics · Physics 2015-06-25 Hans-Karl Janssen , Olaf Stenull

We examine self-avoiding walks in dimensions 4 to 8 using high-precision Monte-Carlo simulations up to length N=16384, providing the first such results in dimensions $d > 4$ on which we concentrate our analysis. We analyse the scaling…

Statistical Mechanics · Physics 2009-11-07 Aleksander L. Owczarek , Thomas Prellberg

We consider the phase diagram of self-avoiding walks (SAW) on the simple cubic lattice subject to surface and bulk interactions, modeling an adsorbing surface and variable solvent quality for a polymer in dilute solution, respectively. We…

Statistical Mechanics · Physics 2019-06-19 C J Bradly , A L Owczarek , T Prellberg

We show that if the three dimensional self-avoiding walk (SAW) is conformally invariant, then one can compute the hitting densities for the SAW in a half space and in a sphere. We test these predictions by Monte Carlo simulations and find…

Mathematical Physics · Physics 2015-06-17 Tom Kennedy

A prototypical problem on which techniques for exact enumeration are tested and compared is the enumeration of self-avoiding walks. Here, we show an advance in the methodology of enumeration, making the process thousands or millions of…

Mathematical Physics · Physics 2015-05-27 Raoul D. Schram , Gerard T. Barkema , Rob H. Bisseling
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