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Random-field-like criticality in glass-forming liquids | | Giulio Biroli
; Chiara Cammarota
; Gilles Tarjus
; Marco Tarzia
; | | Date: |
12 Sep 2013 | | Abstract: | We introduce an approach to derive an effective scalar field theory for the
glass transition; the fluctuating field is the overlap between equilibrium
configurations. We apply it to the case of constrained liquids for which the
introduction of a conjugate source to the overlap field was predicted to lead
to an equilibrium critical point. We show that the long-distance physics in the
vicinity of this critical point is in the same universality class as that of a
paradigmatic disordered model: the random-field Ising model. The quenched
disorder is provided here by a reference equilibrium liquid configuration. We
discuss to what extent this field-theoretical description and the mapping to
the random field Ising model hold in the whole supercooled liquid regime, in
particular near the glass transition. | | Source: | arXiv, 1309.3194 | | Services: | Forum | Review | PDF | Favorites | |
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