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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Rosa, Angelo Everaers, Ralf |
| Description | Country affiliation: Italy Author Affiliation: Rosa A ( SISSA-Scuola Internazionale Superiore di Studi Avanzati, Via Bonomea 265, 34136 Trieste, Italy.); Everaers R ( Univ Lyon, Ens de Lyon, Univ Claude Bernard Lyon 1, CNRS, Laboratoire de Physique and Centre Blaise Pascal, F-69342 Lyon, France.) |
| Abstract | While Flory theories [J. Isaacson and T. C. Lubensky, J. Physique Lett. 41, 469 (1980); M. Daoud and J. F. Joanny, J. Physique 42, 1359 (1981); A. M. Gutin et al., Macromolecules 26, 1293 (1993)] provide an extremely useful framework for understanding the behavior of interacting, randomly branching polymers, the approach is inherently limited. Here we use a combination of scaling arguments and computer simulations to go beyond a Gaussian description. We analyze distribution functions for a wide variety of quantities characterizing the tree connectivities and conformations for the four different statistical ensembles, which we have studied numerically in [A. Rosa and R. Everaers, J. Phys. A: Math. Theor. 49, 345001 (2016) and J. Chem. Phys. 145, 164906 (2016)]: (a) ideal randomly branching polymers, (b) $ 2 d $ and $ 3 d $ melts of interacting randomly branching polymers, (c) $ 3 d $ self-avoiding trees with annealed connectivity, and (d) $ 3 d $ self-avoiding trees with quenched ideal connectivity. In particular, we investigate the distributions (i) $ p _{ N } ( n ) $ of the weight, $ n $ , of branches cut from trees of mass $ N $ by severing randomly chosen bonds; (ii) $ p _{ N } ( l ) $ of the contour distances, $ l $ , between monomers; (iii) $ p _{ N } ( { ⃗ \atop r } ) $ of spatial distances, $ { ⃗ \atop r } $ , between monomers, and (iv) $ p _{ N } ( { ⃗ \atop r } | l ) $ of the end-to-end distance of paths of length $ l $ . Data for different tree sizes superimpose, when expressed as functions of suitably rescaled observables $ { ⃗ \atop x } = { ⃗ \atop r } / 〈 r ^{ 2 } ( N ) 〉 $ or $ x = l / 〈 l ( N ) 〉 $ . In particular, we observe a generalized Kramers relation for the branch weight distributions (i) and find that all the other distributions (ii–iv) are of Redner-des Cloizeaux type, $ q ( { ⃗ \atop x } ) = C | x | ^{ θ } exp − ( K | x | ) ^{ t } $ . We propose a coherent framework, including generalized Fisher-Pincus relations, relating most of the RdC exponents to each other and to the contact and Flory exponents for interacting trees. |
| File Format | HTM / HTML |
| ISSN | 24700045 |
| e-ISSN | 24700053 |
| Journal | Physical Review E |
| Issue Number | 1-1 |
| Volume Number | 95 |
| Language | English |
| Publisher | American Physical Society |
| Publisher Date | 2017-01-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Statistical and Nonlinear Physics many-body systems Condensed Matter Physics |
| Content Type | Text |
| Resource Type | Article |
| Subject | Statistics and Probability Statistical and Nonlinear Physics Condensed Matter Physics |
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