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Disorder and critical phenomena through basic probability models : École d'été de probabilités de Saint-Flour XL, 2010 / Giambattista Giacomin.

By: Giacomin, GiambattistaContributor(s): Ecole d'été de probabilités de Saint-Flour (40th : 2010)Material type: TextTextSeries: Lecture notes in mathematics (Springer-Verlag) ; 2025.Publication details: New York : Springer, 2011. Description: 1 online resource (xi, 130 pages) : illustrations (some color)Content type: text Media type: computer Carrier type: online resourceISBN: 9783642211560; 3642211569Subject(s): Probabilities | Distribution (Probability theory) | Distribution (Probability theory) | ProbabilitiesGenre/Form: Electronic books. | Electronic books. Additional physical formats: Print version:: Disorder and critical phenomena through basic probability models.DDC classification: 519.2 LOC classification: QA273 | .G53 2011ebOnline resources: Click here to access online
Contents:
1 Introduction -- 2 Homogeneous pinning systems: a class of exactly solved models -- 3 Introduction to disordered pinning models -- 4 Irrelevant disorder estimates -- 5 Relevant disorder estimates: the smoothing phenomenon -- 6 Critical point shift: the fractional moment method -- 7 The coarse graining procedure -- 8 Path properties.
Summary: Understanding the effect of disorder on critical phenomena is a central issue in statistical mechanics. In probabilistic terms: what happens if we perturb a system exhibiting a phase transition by introducing a random environment? The physics community has approached this very broad question by aiming at general criteria that tell whether or not the addition of disorder changes the critical properties of a model: some of the predictions are truly striking and mathematically challenging. We approach this domain of ideas by focusing on a specific class of models, the "pinning models," for which a series of recent mathematical works has essentially put all the main predictions of the physics community on firm footing; in some cases, mathematicians have even gone beyond, settling a number of controversial issues. But the purpose of these notes, beyond treating the pinning models in full detail, is also to convey the gist, or at least the flavor, of the "overall picture," which is, in many respects, unfamiliar territory for mathematicians.
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Includes bibliographical references and index.

Print version record.

1 Introduction -- 2 Homogeneous pinning systems: a class of exactly solved models -- 3 Introduction to disordered pinning models -- 4 Irrelevant disorder estimates -- 5 Relevant disorder estimates: the smoothing phenomenon -- 6 Critical point shift: the fractional moment method -- 7 The coarse graining procedure -- 8 Path properties.

Understanding the effect of disorder on critical phenomena is a central issue in statistical mechanics. In probabilistic terms: what happens if we perturb a system exhibiting a phase transition by introducing a random environment? The physics community has approached this very broad question by aiming at general criteria that tell whether or not the addition of disorder changes the critical properties of a model: some of the predictions are truly striking and mathematically challenging. We approach this domain of ideas by focusing on a specific class of models, the "pinning models," for which a series of recent mathematical works has essentially put all the main predictions of the physics community on firm footing; in some cases, mathematicians have even gone beyond, settling a number of controversial issues. But the purpose of these notes, beyond treating the pinning models in full detail, is also to convey the gist, or at least the flavor, of the "overall picture," which is, in many respects, unfamiliar territory for mathematicians.

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