Log-Gamma Polymer Free Energy Fluctuations via a Fredholm Determinant Identity

Original manuscript June 20, 2012

Bibliographic Details
Main Authors: Borodin, Alexei, Corwin, Ivan, Remenik, Daniel
Other Authors: Massachusetts Institute of Technology. Department of Mathematics
Format: Article
Language:en_US
Published: Springer-Verlag 2013
Online Access:http://hdl.handle.net/1721.1/80868
https://orcid.org/0000-0002-2913-5238
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author Borodin, Alexei
Corwin, Ivan
Remenik, Daniel
author2 Massachusetts Institute of Technology. Department of Mathematics
author_facet Massachusetts Institute of Technology. Department of Mathematics
Borodin, Alexei
Corwin, Ivan
Remenik, Daniel
author_sort Borodin, Alexei
collection MIT
description Original manuscript June 20, 2012
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spelling mit-1721.1/808682022-09-27T15:42:50Z Log-Gamma Polymer Free Energy Fluctuations via a Fredholm Determinant Identity Borodin, Alexei Corwin, Ivan Remenik, Daniel Massachusetts Institute of Technology. Department of Mathematics Borodin, Alexei Corwin, Ivan Original manuscript June 20, 2012 We prove that under n[superscript 1/3] scaling, the limiting distribution as n → ∞ of the free energy of Seppalainen’s log-Gamma discrete directed polymer is GUE Tracy-Widom. The main technical innovation we provide is a general identity between a class of n-fold contour integrals and a class of Fredholm determinants. Applying this identity to the integral formula proved in Corwin et al. (Tropical combinatorics and Whittaker functions. http://arxiv.org/abs/1110.3489v3 [math.PR], 2012) for the Laplace transform of the log-Gamma polymer partition function, we arrive at a Fredholm determinant which lends itself to asymptotic analysis (and thus yields the free energy limit theorem). The Fredholm determinant was anticipated in Borodin and Corwin (Macdonald processes. http://arxiv.org/abs/1111.4408v3 [math.PR], 2012) via the formalism of Macdonald processes yet its rigorous proof was so far lacking because of the nontriviality of certain decay estimates required by that approach. National Science Foundation (U.S.) (Grant DMS-1056390) National Science Foundation (U.S.) (Grant DMS-1208998) Clay Mathematics Institute (Research Fellowship) Microsoft Research (Schramm Memorial Fellowship) 2013-09-23T16:21:46Z 2013-09-23T16:21:46Z 2013-07 2012-11 Article http://purl.org/eprint/type/JournalArticle 0010-3616 1432-0916 http://hdl.handle.net/1721.1/80868 Borodin, Alexei, Ivan Corwin, and Daniel Remenik. “Log-Gamma Polymer Free Energy Fluctuations via a Fredholm Determinant Identity.” Communications in Mathematical Physics (July 3, 2013). https://orcid.org/0000-0002-2913-5238 en_US http://dx.doi.org/10.1007/s00220-013-1750-x Communications in Mathematical Physics Creative Commons Attribution-Noncommercial-Share Alike 3.0 http://creativecommons.org/licenses/by-nc-sa/3.0/ application/pdf Springer-Verlag arXiv
spellingShingle Borodin, Alexei
Corwin, Ivan
Remenik, Daniel
Log-Gamma Polymer Free Energy Fluctuations via a Fredholm Determinant Identity
title Log-Gamma Polymer Free Energy Fluctuations via a Fredholm Determinant Identity
title_full Log-Gamma Polymer Free Energy Fluctuations via a Fredholm Determinant Identity
title_fullStr Log-Gamma Polymer Free Energy Fluctuations via a Fredholm Determinant Identity
title_full_unstemmed Log-Gamma Polymer Free Energy Fluctuations via a Fredholm Determinant Identity
title_short Log-Gamma Polymer Free Energy Fluctuations via a Fredholm Determinant Identity
title_sort log gamma polymer free energy fluctuations via a fredholm determinant identity
url http://hdl.handle.net/1721.1/80868
https://orcid.org/0000-0002-2913-5238
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AT remenikdaniel loggammapolymerfreeenergyfluctuationsviaafredholmdeterminantidentity