Zobrazeno 1 - 10
of 92
pro vyhledávání: '"Stilck, Jürgen F."'
Trimers are chains formed by two lattice edges, and therefore three monomers. We consider trimers placed on the square lattice, the edges belonging to the same trimer are either colinear, forming a straight rod with unitary statistical weight, or per
Externí odkaz:
http://arxiv.org/abs/2302.13725
Publikováno v:
Phys. Rev. E 105, 024132 (2022)
Although hard rigid rods ($k$-mers) defined on the square lattice have been widely studied in the literature, their entropy per site, $s(k)$, in the full-packing limit is only known exactly for dimers ($k=2$) and numerically for trimers ($k=3$). Here
Externí odkaz:
http://arxiv.org/abs/2112.00149
Publikováno v:
Phys. Rev. E 100, 022109 (2019)
We study an associating lattice gas (ALG) using Monte Carlo simulation and solutions on Husimi lattices. In this model, the molecules have an orientational degree of freedom and the interactions depend on the relative orientations of nearest-neighbor
Externí odkaz:
http://arxiv.org/abs/1903.08306
Publikováno v:
J. Phys. A: Math. Theor. 51, 054001 (2018)
We study a model of semi-flexible self-avoiding trails, where the lattice paths are constrained to visit each lattice edge at most once, with configurations weighted by the number of collisions, crossings and bends, on a Husimi lattice built with squ
Externí odkaz:
http://arxiv.org/abs/1709.10449
Publikováno v:
Eur. Phys. Lett. 112 (2015) 66002
We obtain, using extensive Monte Carlo simulations, virial expansion and a high-density perturbation expansion about the fully packed monodispersed phase, the phase diagram of a system of bidispersed hard rods on a square lattice. We show numerically
Externí odkaz:
http://arxiv.org/abs/1510.07375
Publikováno v:
Rev. Bras. de Ens. de Fis. v. 35, n. 4, 4306 (2013)
We study a process of heat transfer between a body of heat capacity C(T) and a sequence of N heat reservoirs, with temperatures equally spaced between an initial temperature T_0 and a final temperature T_N. The body and the heat reservoirs are isolat
Externí odkaz:
http://arxiv.org/abs/1303.2911
Publikováno v:
J. Phys. A: Math. Theor. 46 115004 (2013)
Using exact enumerations of self-avoiding walks (SAWs) we compute the inhomogeneous pressure exerted by a two-dimensional end-grafted polymer on the grafting line which limits a semi-infinite square lattice. The results for SAWs show that the asympto
Externí odkaz:
http://arxiv.org/abs/1301.3432
Autor:
Neto, Minos A., Stilck, Jürgen F.
Publikováno v:
J. Chem. Phys. 138, 044902 (2013)
We consider the entropy of polydisperse chains placed on a lattice. In particular, we study a model for equilibrium polymerization, where the polydispersivity is determined by two activities, for internal and endpoint monomers of a chain. We solve th
Externí odkaz:
http://arxiv.org/abs/1209.6252
Autor:
Serra, Pablo, Stilck, Jürgen F.
We propose and study a model of polymer chains in a bilayer. Each chain is confined in one of the layers and polymer bonds on first neighbor edges in different layers interact. We also define and comment results for a model with interactions between
Externí odkaz:
http://arxiv.org/abs/1206.3770
We study the Bethe approximation for a system of long rigid rods of fixed length k, with only excluded volume interaction. For large enough k, this system undergoes an isotropic-nematic phase transition as a function of density of the rods. The Bethe
Externí odkaz:
http://arxiv.org/abs/1102.4138