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The Stochastic Loewner evolution is a recent tool in the study of two-dimensional critical systems. We extend this approach to the case of critical systems with continuous symmetries, such as SU(2) Wess-Zumino-Witten models, where domain…

High Energy Physics - Theory · Physics 2007-05-23 E. Bettelheim , I. A. Gruzberg , A. W. W. Ludwig , P. Wiegmann

In part 1 (Chapter 2) we present the basic notions of Loewner theory. Here we use a modern form which was developed by F. Bracci, M. Contreras, S. D\'iaz-Madrigal et al. and which can be applied to certain higher dimensional complex…

Complex Variables · Mathematics 2015-01-20 Sebastian Schleissinger

F. Bracci, M.D. Contreras, S. D\'iaz Madrigal proved that any evolution family of order d is described by a generalized Loewner chain. G. Ivanov and A. Vasil'ev considered randomized version of the chain and found a substitution which…

Complex Variables · Mathematics 2024-06-19 Hülya Acar , Alexey L. Lukashov

We discuss the extension of radial SLE to multiply connected planar domains. First, we extend Loewner's theory of slit mappings to multiply connected domains by establishing the radial Komatu-Loewner equation, and show that a simple curve…

Probability · Mathematics 2007-05-23 Robert O. Bauer , Roland M. Friedrich

We show that an evolution family of the unit disc is commuting if and only if the associated Herglotz vector field has separated variables. This is the case if and only if the evolution family comes from a semigroup of holomorphic self-maps…

Complex Variables · Mathematics 2009-07-27 Filippo Bracci , Manuel D. Contreras , Santiago Diaz-Madrigal

We construct radial stochastic Loewner evolution in multiply connected domains, choosing the unit disk with concentric circular slits as a family of standard domains. The natural driving function or input is a diffusion on the associated…

Probability · Mathematics 2007-05-23 Robert O. Bauer , Roland M. Friedrich

A new approach in Loewner Theory proposed by Bracci, Contreras, D\'iaz-Madrigal and Gumenyuk provides a unified treatment of the radial and the chordal versions of the Loewner equations. In this framework, a generalized Loewner chain…

Complex Variables · Mathematics 2019-03-04 Ikkei Hotta

We propose variants of Schramm-Loewner evolution (SLE) that are related to superconformal algebras following the group theoretical formulation of SLE, in which the relevant stochastic differential equation is derived from a random process…

Mathematical Physics · Physics 2019-05-20 Shinji Koshida

We propose an extension of the classical variational theory of evolution equations that accounts for dynamics also in possibly non-reflexive and non-separable spaces. The pivoting point is to establish a novel variational structure, based…

Analysis of PDEs · Mathematics 2021-09-17 Alexander Menovschikov , Anastasia Molchanova , Luca Scarpa

This review provides an introduction to two dimensional growth processes. Although it covers a variety processes such as diffusion limited aggregation, it is mostly devoted to a detailed presentation of stochastic Schramm-Loewner evolutions…

Mathematical Physics · Physics 2008-11-26 Michel Bauer , Denis Bernard

Using concepts of noncommutative probability we show that the Loewner's evolution equation can be viewed as providing a map from paths of measures to paths of probability measures. We show that the fixed point of the Loewner map is the…

Probability · Mathematics 2007-05-23 Robert O. Bauer

We review two numerical methods related to the Schramm-Loewner evolution (SLE). The first simulates SLE itself. More generally, it finds the curve in the half-plane that results from the Loewner equation for a given driving function. The…

Mathematical Physics · Physics 2015-05-14 Tom Kennedy

The purpose of this paper is to interpret the phase transition in the Loewner theory as an analog of the hyperbolic variant of the Schur theorem about curves of bounded curvature. We define a family of curves that have a certain conformal…

Complex Variables · Mathematics 2014-06-11 Joan Lind , Steffen Rohde

Lenia is a continuous generalization of Conway's Game of Life. Bert Wang-Chak Chan has discovered and published many seemingly organic dynamics in his Lenia simulations since 2019. These simulations follow the Euler curve algorithm starting…

Dynamical Systems · Mathematics 2024-01-23 Craig Calcaterra , Axel Boldt

Stochastic Loewner evolutions (SLE) are random growth processes of sets, called hulls, embedded in the two dimensional upper half plane. We elaborate and develop a relation between SLE evolutions and conformal field theories (CFT) which is…

High Energy Physics - Theory · Physics 2008-11-26 Michel Bauer , Denis Bernard

We disclose the origin of anisotropic percolation perimeters in terms of the Stochastic Loewner Evolution (SLE) process. Precisely, our results from extensive numerical simulations indicate that the perimeters of multi-layered and directed…

Statistical Mechanics · Physics 2016-04-27 H. F. Credidio , A. A. Moreira , H. J. Herrmann , J. S. Andrade

We suggest how to give a physical interpretation of Stochastic Loewner Evolution traces approaching a marked point in the upper half plane. We show that this may be related to the fusion of boundary with bulk fields in Conformal Field…

High Energy Physics - Theory · Physics 2011-11-10 Annekathrin Müller-Lohmann

We review the recently developed relation between the traditional algebraic approach to conformal field theories and the more recent probabilistic approach based on stochastic Loewner evolutions. It is based on implementing random conformal…

High Energy Physics - Theory · Physics 2007-05-23 Denis Bernard

In [5], O. Bauer interpreted the chordal Loewner equation in terms of non-commutative probability theory. We follow this perspective and identify the chordal Loewner equations as the non-autonomous versions of evolution equations for…

Operator Algebras · Mathematics 2018-02-13 Sebastian Schleißinger

The Stochastic Loewner equation, introduced by Schramm, gives us a powerful way to study and classify critical random curves and interfaces in two-dimensional statistical mechanics. New kind of stochastic Loewner equation, called fractional…

Statistical Mechanics · Physics 2022-04-20 M. Ghasemi Nezhadhaghighi