Monopole percolation in scalar QED

Monopole Percolation was first introduced in the study of the non-compact lattice QED in both, the pure case and coupled to Higgs fields. Monopole percolation has been also observed coupled to the monopole condensation in the study of the pure gauge compact QED. We present here the results coming from the analysis of the role of the monopole percolation in the coupled gauge-higgs compact QED.Comment: 3 pages, 5 Postscript figures included using uufiles, uses epsf.tex. Poster presented in Lattice'97 conferenc

Weak Prepositions in Tortosan Catalan : alternation of Prepositions, Allomorphy or Phonological Process

In this paper, starting from a brief analysis of weak prepositions in Tortosan. I try to show that the preposition a is the only one appearing in adjunct and indirect object PPs. This forces us to account for the form [an] which this preposition takes in certain contexts: specifically when it is followed by a vowel initial determiner or pronoun. After considering the alternative of accounting for the relation between the preposition a and the form [an] either in terms of prepositional allomorphy or in terms of epenthesis of the coronal nasal, I have chosen the latter option, since it allows us to explain similar processes affecting other prepositions (contra 'against', cap a 'towards' and per a 'for') and the privative prefix a. Optimal syllabification (CV syllable), which is a preferred but not obligatory condition in Catalan, would be, in its formulation as the Onset Principle, the trigger for this process of consonantic epenthesis, which essentially affects the domain [clitic+word] when the former is a determiner.En aquest article, i a partir d'una anàlisi breu de les preposicions febles del dialecte tortosí, intento demostrar que la preposició a és l'única que apareix en els complements circumstancials i en els indirectes. Aixb implica explicar la forma [an] que realitza l'esmentada preposició en certs contextos: concretament quan va seguida d'un determinant o d'un pronom començats en vocal. Davant la doble possibilitat d'explicar la relació entre la preposició a i la forma [an]: al·lomorfia preposicional i epèntesi de la vocal nasal, m'he decantat per aquesta segona via, ja que permet d'explicar processos similars que afecten altres preposicions (contra, cap a i per a) i el prefix privatiu a. La sil·labificació òptima (síl·laba CV) -preferent, però no obligatòria en català mitjançant l' Onset Principle, seria la causa d'aquest procés d'epèntesi consonàntica, que afecta bàsicament l'àmbit [clític+mot] quant el primer és un determinant

Ressenyes

Obra ressenyada: John Rennie SHORT, Alternative Geographies. Nova York: Prentice Hall, 2000

Numerical simulation of random paths with a curvature dependent action

We study an ensemble of closed random paths, embedded in R^3, with a curvature dependent action. Previous analytical results indicate that there is no crumpling transition for any finite value of the curvature coupling. Nevertheless, in a high statistics numerical simulation, we observe two different regimes for the specific heat separated by a rather smooth structure. The analysis of this fact warns us about the difficulties in the interpretation of numerical results obtained in cases where theoretical results are absent and a high statistics simulation is unreachable. This may be the case of random surfaces.Comment: 9 pages, LaTeX, 4 eps figures. Final version to appear in Mod. Phys. Lett.