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θ-point temperature and exponents for the bond fluctuation model

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  • Buldyrev, Sergey V.
  • Sciortino, Francesco

Abstract

We calculate the θ-temperature and the associated critical exponents for the bond fluctuation polymer model of Carmesin and Kremer in two dimensions. The critical exponent values are in agreement with the theoretical predictions. We find that the extra mobility introduced by the flexible bond serves to shift the crossover to the ideal tricritical behavior to a shorter polymer length, compared with previously studied lattice models. In particular, bond-flexible simulations with polymer lengths of the order of 50 already successfully reproduce the properties of infinite chains.

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  • Buldyrev, Sergey V. & Sciortino, Francesco, 1992. "θ-point temperature and exponents for the bond fluctuation model," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 182(3), pages 346-352.
    • Handle: RePEc:eee:phsmap:v:182:y:1992:i:3:p:346-352
    DOI: 10.1016/0378-4371(92)90348-T
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