activity
20092026
most citedConvergence of radial loop-erased random walk in the natural parametrization

18 citations · 94 across the 20 of their papers we have counts for

collaborators

24 papers

math.PR2026

The Brownian bubble tea

Gregory F. Lawler, Fredrik Viklund, Yilin Wang +1

We use Loewner-Kufarev evolution to decompose the Brownian loop soup into a Poisson point process on Brownian bubbles which we call the Brownian bubble tea driven by , where …

math.PR2023★ 1 cited

Free energy and quark potential in Ising lattice gauge theory via cluster expansion

Malin Palö Forsström, Fredrik Viklund

We revisit the cluster expansion for Ising lattice gauge theory on with Wilson action, at a fixed inverse temperature \( β\) in the low-temperature regi…

math.PR2022★ 1 cited

Wilson lines in the lattice Higgs model at strong coupling

Malin P. Forsström, Jonatan Lenells, Fredrik Viklund

We consider the 4D fixed length lattice Higgs model with Wilson action for the gauge field and structure group . We study Wilson line observables in the strong coupli…

math.PR2022★ 1 cited

Percolation for two-dimensional excursion clouds and the discrete Gaussian free field

Alexander Drewitz, Olof Elias, Alexis Prévost +2

We study percolative properties of excursion processes and the discrete Gaussian free field (dGFF) in the planar unit disk. We consider discrete excursion clouds, defined using ran…

math.PR2021★ 12 cited

Wilson loops in the abelian lattice Higgs model

Malin P. Forsström, Jonatan Lenells, Fredrik Viklund

We consider the lattice Higgs model on , with structure group given by for . We compute the expected value of the Wilson loop observable…

math.CV2020★ 4 cited

The Loewner-Kufarev Energy and Foliations by Weil-Petersson Quasicircles

Fredrik Viklund, Yilin Wang

We study foliations by chord-arc Jordan curves of the twice punctured Riemann sphere using the Loewner-Kufarev equation. We associate to such a fol…

math.PR2020★ 1 cited

Wilson loops in finite Abelian lattice gauge theories

Malin Palö Forsström, Jonatan Lenells, Fredrik Viklund

We consider lattice gauge theories on with Wilson action and structure group . We compute the expectation of Wilson loop observables to leading order i…

math.PR2019

Dimension of two-valued sets via imaginary chaos

Lukas Schoug, Avelio Sepúlveda, Fredrik Viklund

Two-valued sets are local sets of the two-dimensional Gaussian free field (GFF) that can be thought of as representing all points of the domain that may be connected to the boundar…

math.CV2019

Remarks on the regularity of quasislits

Lukas Schoug, Atul Shekhar, Fredrik Viklund

A quasislit is the image of a vertical line segment [0, iy], y > 0, under a quasiconformal homeomorphism of the upper half-plane fixing infinity. Quasislits correspond precisely to…

math.CV2019★ 15 cited

Interplay between Loewner and Dirichlet energies via conformal welding and flow-lines

Fredrik Viklund, Yilin Wang

The Loewner energy of a Jordan curve is the Dirichlet energy of its Loewner driving term. It is finite if and only if the curve is a Weil-Petersson quasicircle. In this paper, we d…

math-ph2018★ 4 cited

Asymptotic analysis of Dotsenko-Fateev integrals

Jonatan Lenells, Fredrik Viklund

We develop a method for evaluating asymptotics of certain contour integrals that appear in Conformal Field Theory under the name of Dotsenko-Fateev integrals and which are natural…

math.PR2018

Transition probabilities for infinite two-sided loop-erased random walks

Christian Beneš, Gregory F. Lawler, Fredrik Viklund

The infinite two-sided loop-erased random walk (LERW) is a measure on infinite self-avoiding walks that can be viewed as giving the law of the `middle part' of an infinite LERW loo…

math.PR2018★ 12 cited

One-dimensional scaling limits in a planar Laplacian random growth model

Alan Sola, Amanda Turner, Fredrik Viklund

We consider a family of growth models defined using conformal maps in which the local growth rate is determined by , where is the aggregate map for particles…

math.PR2017★ 18 cited

Convergence of radial loop-erased random walk in the natural parametrization

Gregory F. Lawler, Fredrik Viklund

In recent work we have shown that loop-erased random walk (LERW) connecting two boundary points of a domain converges to the chordal Schramm-Loewner evolution (SLE(2)) in the sense…

math.PR2017

Schramm's formula and the Green's function for multiple SLE

Jonatan Lenells, Fredrik Viklund

We construct martingale observables for systems of multiple SLE curves by applying screening techniques within the CFT framework recently developed by Kang and Makarov, extended to…

math.PR2016

The Loewner difference equation and convergence of loop-erased random walk

Gregory F. Lawler, Fredrik Viklund

We revisit the convergence of loop-erased random walk, LERW, to SLE(2) when the curves are parametrized by capacity. We construct a coupling of the chordal version of LERW and chor…

math.PR2016★ 5 cited

Convergence of loop-erased random walk in the natural parametrization

Gregory F. Lawler, Fredrik Viklund

Loop-erased random walk, abbreviated LERW, is one of the most well-studied critical lattice models. It is the self-avoiding random walk one gets after erasing the loops from a simp…

math.PR2015★ 10 cited

A Dimension Spectrum for SLE Boundary Collisions

Tom Alberts, Ilia Binder, Fredrik Johansson Viklund

We consider chordal SLE(kappa) curves for kappa > 4, where the intersection of the curve with the boundary is a random fractal of almost sure Hausdorff dimension min {2-8/kappa,1}.…

math.PR2014★ 2 cited

Scaling limit of the loop-erased random walk Green's function

Christian Benes, Gregory F. Lawler, Fredrik Johansson Viklund

We consider loop-erased random walk (LERW) running between two boundary points of a square grid approximation of a planar simply connected domain. The LERW Green's function is the…

math-ph2013

Conformal Field Theory at the Lattice Level: Discrete Complex Analysis and Virasoro Structure

Clément Hongler, Fredrik Johansson Viklund, Kalle Kytölä

Critical statistical mechanics and Conformal Field Theory (CFT) are conjecturally connected since the seminal work of Beliavin, Polyakov, and Zamolodchikov [BPZ84a]. Both exhibit e…

math.PR2012

On the Continuity of SLE(κ) in κ

Fredrik Johansson Viklund, Steffen Rohde, Carto Wong

We prove that for almost every Brownian motion sample, the corresponding SLE(κ) curves parameterized by capacity exist and change continuously in the supremum norm when κvaries in…

math.PR2012★ 5 cited

Convergence rates for loop-erased random walk and other Loewner curves

Fredrik Johansson Viklund

We estimate convergence rates for curves generated by Loewner's differential equation under the basic assumption that a convergence rate for the driving terms is known. An importan…

math.PR2010★ 2 cited

Some remarks on SLE bubbles and Schramm's two-point observable

Dmitry Beliaev, Fredrik Johansson Viklund

Simmons and Cardy recently predicted a formula for the probability that the chordal SLE(8/3) path passes to the left of two points in the upper half-plane. In this paper we give a…

math.PR2009★ 1 cited

Almost sure multifractal spectrum for the tip of an SLE curve

Fredrik Johansson Viklund, Gregory F. Lawler

The tip multifractal spectrum of a two-dimensional curve is one way to describe the behavior of the uniformizing conformal map of the complement near the tip. We give the tip multi…