KP governs random growth off a 1-dimensional substrate

The logarithmic derivative of the marginal distributions of randomly fluctuating interfaces in one dimension on a large scale evolve according to the Kadomtsev–Petviashvili (KP) equation. This is derived algebraically from a Fredholm determinant obtained in [MQR17] for the Kardar–Parisi–Zhang (KPZ)...

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Main Authors: Jeremy Quastel, Daniel Remenik
Format: Article
Language:English
Published: Cambridge University Press 2022-01-01
Series:Forum of Mathematics, Pi
Subjects:
Online Access:https://www.cambridge.org/core/product/identifier/S2050508621000093/type/journal_article
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author Jeremy Quastel
Daniel Remenik
author_facet Jeremy Quastel
Daniel Remenik
author_sort Jeremy Quastel
collection DOAJ
description The logarithmic derivative of the marginal distributions of randomly fluctuating interfaces in one dimension on a large scale evolve according to the Kadomtsev–Petviashvili (KP) equation. This is derived algebraically from a Fredholm determinant obtained in [MQR17] for the Kardar–Parisi–Zhang (KPZ) fixed point as the limit of the transition probabilities of TASEP, a special solvable model in the KPZ universality class. The Tracy–Widom distributions appear as special self-similar solutions of the KP and Korteweg–de Vries equations. In addition, it is noted that several known exact solutions of the KPZ equation also solve the KP equation.
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spelling doaj.art-e06662777a914438bc2dbc546abb9acc2023-03-09T12:34:22ZengCambridge University PressForum of Mathematics, Pi2050-50862022-01-011010.1017/fmp.2021.9KP governs random growth off a 1-dimensional substrateJeremy Quastel0Daniel Remenik1Department of Mathematics, University of Toronto, 40 St. George Street, Toronto, Ontario, Canada M5S 2E4Departamento de Ingeniería Matemática and Centro de Modelamiento Matemático (UMI-CNRS 2807), Universidad de Chile, Av. Beauchef 851, Torre Norte, Piso 5, Santiago, Chile; E-mail:The logarithmic derivative of the marginal distributions of randomly fluctuating interfaces in one dimension on a large scale evolve according to the Kadomtsev–Petviashvili (KP) equation. This is derived algebraically from a Fredholm determinant obtained in [MQR17] for the Kardar–Parisi–Zhang (KPZ) fixed point as the limit of the transition probabilities of TASEP, a special solvable model in the KPZ universality class. The Tracy–Widom distributions appear as special self-similar solutions of the KP and Korteweg–de Vries equations. In addition, it is noted that several known exact solutions of the KPZ equation also solve the KP equation.https://www.cambridge.org/core/product/identifier/S2050508621000093/type/journal_article60K3582C22
spellingShingle Jeremy Quastel
Daniel Remenik
KP governs random growth off a 1-dimensional substrate
Forum of Mathematics, Pi
60K35
82C22
title KP governs random growth off a 1-dimensional substrate
title_full KP governs random growth off a 1-dimensional substrate
title_fullStr KP governs random growth off a 1-dimensional substrate
title_full_unstemmed KP governs random growth off a 1-dimensional substrate
title_short KP governs random growth off a 1-dimensional substrate
title_sort kp governs random growth off a 1 dimensional substrate
topic 60K35
82C22
url https://www.cambridge.org/core/product/identifier/S2050508621000093/type/journal_article
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