Inverse scattering of the Zakharov-Shabat system solves the weak noise theory of the Kardar-Parisi-Zhang equation

A Krajenbrink, P Le Doussal - Physical Review Letters, 2021 - APS
We solve the large deviations of the Kardar-Parisi-Zhang (KPZ) equation in one dimension
at short time by introducing an approach which combines field theoretical, probabilistic, and …

Solvable models in the KPZ class: approach through periodic and free boundary Schur measures

T Imamura, M Mucciconi, T Sasamoto - arXiv preprint arXiv:2204.08420, 2022 - arxiv.org
We explore probabilistic consequences of correspondences between $ q $-Whittaker
measures and periodic and free boundary Schur measures established by the authors in the …

Coloured stochastic vertex models and their spectral theory

A Borodin, M Wheeler - arXiv preprint arXiv:1808.01866, 2018 - arxiv.org
This work is dedicated to $\mathfrak {sl} _ {n+ 1} $-related integrable stochastic vertex
models; we call such models coloured. We prove several results about these models, which …

Open ASEP in the weakly asymmetric regime

I Corwin, H Shen - Communications on Pure and Applied …, 2018 - Wiley Online Library
We consider ASEP on a bounded interval and on a half‐line with sources and sinks. On the
full line, Bertini and Giacomin in 1997 proved convergence under weakly asymmetric …

Lower tail of the KPZ equation

I Corwin, P Ghosal - 2020 - projecteuclid.org
We provide the first tight bounds on the lower tail probability of the one-point distribution of
the Kardar–Parisi–Zhang (KPZ) equation with narrow wedge initial data. Our bounds hold …

Stationary measures for the log-gamma polymer and KPZ equation in half-space

G Barraquand, I Corwin - The Annals of Probability, 2023 - projecteuclid.org
We construct explicit one-parameter families of stationary measures for the Kardar–Parisi–
Zhang equation in half-space with Neumann boundary conditions at the origin, as well as for …

The KPZ limit of ASEP with boundary

S Parekh - Communications in Mathematical Physics, 2019 - Springer
It was recently proved in Corwin and Shen (CPAM,[CS16]) that under weakly asymmetric
scaling, the height functions for ASEP with sources and sinks converges to the Hopf–Cole …

KPZ exponents for the half-space log-gamma polymer

G Barraquand, I Corwin, S Das - Probability Theory and Related Fields, 2024 - Springer
We consider the point-to-point log-gamma polymer of length 2 N in a half-space with iid
Gamma-1 (2 θ) distributed bulk weights and iid Gamma-1 (α+ θ) distributed boundary …

A Riemann‐Hilbert Approach to the Lower Tail of the Kardar‐Parisi‐Zhang Equation

M Cafasso, T Claeys - Communications on Pure and Applied …, 2022 - Wiley Online Library
Fredholm determinants associated to deformations of the Airy kernel are closely connected
to the solution to the Kardar‐Parisi‐Zhang (KPZ) equation with narrow wedge initial data …

The half-space log-gamma polymer in the bound phase

S Das, W Zhu - Communications in Mathematical Physics, 2024 - Springer
We consider the log-gamma polymer in the half-space with bulk weights distributed as
Gamma-1 (2 θ) and diagonal weights as Gamma-1 (α+ θ) for θ> 0 and α>-θ. We show that in …