Ewain Gwynne
I am a professor of mathematics at the University of Chicago. I am also a member of the Committee on Computational and Applied Mathematics (CCAM) and an affiliate member of the statistics department
Prior to coming to Chicago I was a postdoc at the University of Cambridge. I got my Ph.D from MIT in 2018, advised by Scott Sheffield. Previously, I was an undergraduate student at Northwestern University.
I am interested in probability theory, particularly random geometric objects which arise in statistical mechanics. Topics I have worked on include Schramm-Loewner evolution, Liouville quantum gravity, random planar maps, random permutations, random walk in random environment, and various random growth processes.
Here is a non-technical summary of my research aimed at an audience with some scientific background, not necessarily in math.
I am an associate editor of Probability and Mathematical Physics.
Contact Information
Office: Ryerson 360D
Email: ewain at uchicago.edu
Here is a link to my CV: CV
PhD students advised (at least in part) by me
Articles
Expository works
- Introduction to the Liouville quantum gravity metric (with J. Ding and J. Dubedat).
Proceedings of the ICM, 2022.
arXiv:2109.01252
- Mating of trees for random planar maps and Liouville quantum gravity: a survey (with N. Holden and X. Sun). Panoramas et Syntheses. arXiv:1910.04713
- Random surfaces and Liouville quantum gravity. Notices of the American Mathematical Society. arXiv:1908.05573
Curvature in random geometry
Random geometry in dimension at least three
Relationships between supercritical LQG, SLE, and random planar maps
Relationships between Liouville quantum gravity and SLE with mismatched parameter values
- Cutting γ-Liouville quantum gravity by Schramm-Loewner evolution for κ not in {γ^2,16/γ^2} (with M. Ang). arXiv:2310.11455
Harmonic balls and IDLA
Meanders and permutations
- Reconstructing SLE-decorated Liouville quantum gravity surfaces from random permutons (with J. Borga). arXiv:2409.15494
- Power-law bounds for increasing subsequences in Brownian separable permutons and homogeneous sets in Brownian cographons (with J. Borga and W. Da Silva). Advances in Mathematics. arXiv:2303.17030
- On the geometry of uniform meandric systems (with J. Borga and M. Park). Communications in Mathematical Physics. arXiv:2212.00534
- Permutons, meanders, and SLE-decorated Liouville quantum gravity (with J. Borga and X. Sun). Journal of the European Mathematical Society. arXiv:2207.02319
Loewner evolution with complex driving function
Critical and supercritical Liouville quantum gravity metric
- Uniqueness of the critical and supercritical Liouville quantum gravity metrics (with J. Ding). Proceedings of the London Mathematical Society. arXiv:2110.00177
- The critical Liouville quantum gravity metric induces the Euclidean topology (with J. Ding). Frontiers in Mathematics. arXiv:2108.12067
- Up-to-constants comparison of Liouville first passage percolation and Liouville quantum gravity (with J. Ding). Science China Mathematics. arXiv:2108.12060
- Regularity and confluence of geodesics for the supercritical Liouville quantum gravity metric (with J. Ding). Probability and Mathematical Physics. arXiv:2104.06502
- Tightness of supercritical Liouville first passage percolation (with J. Ding). Journal of the European Mathematical Society. arXiv:2005.13576
- The distance exponent for Liouville first passage percolation is positive (with J. Ding and A. Sepulveda). Probability Theory and Related Fields. arXiv:2005.13570
- Liouville quantum gravity with matter central charge in (1,25): a probabilistic approach (with N. Holden, J. Pfeffer, and G. Remy). Communications in Mathematical Physics. arXiv:1903.09111
Subcritical Liouville quantum gravity metric
- The Minkowski content measure for the Liouville quantum gravity metric (with J. Sung). Annals of Probability. arXiv:2211.04701
- Geodesic networks in Liouville quantum gravity surfaces. Probability and Mathematical Physics. arXiv:2010.11260
- Geodesics and metric ball boundaries in Liouville quantum gravity (with J. Pfeffer and S. Sheffield). Probability Theory and Related Fields. arXiv:2010.07889
- The dimension of the boundary of a Liouville quantum gravity metric ball. Communications in Mathematical Physics. arXiv:1909.08588
- KPZ formulas for the Liouville quantum gravity metric (with J. Pfeffer). Transactions of the American Mathematical Society. arXiv:1905.11790
- Conformal covariance of the Liouville quantum gravity metric for γ ∈ (0,2) (with J. Miller). Annales de l'Institut Henri Poincarè. arXiv:1905.00384
- Existence and uniqueness of the Liouville quantum gravity metric for γ ∈ (0,2) (with J. Miller). Inventiones Mathematicae. arXiv:1905.00383
- Confluence of geodesics in Liouville quantum gravity for γ ∈ (0,2) (with J. Miller). Annals of Probability. arXiv:1905.00381
- Weak LQG metrics and Liouville first passage percolation (with J. Dubedat, H. Falconet, J. Pfeffer, and X. Sun). Probability theory and related fields. arXiv:1905.00380
- Local metrics of the Gaussian free field (with J. Miller). Annales de l'Institut Fourier. arXiv:1905.00379
Distances in random planar maps and Liouville quantum gravity
- Bounds for distances and geodesic dimension in Liouville first passage percolation (with J. Pfeffer). Electronic Communications in Probability. arXiv:1903.09561
- External diffusion limited aggregation on a spanning-tree-weighted random planar map (with J. Pfeffer). Annals of Probability. arXiv:1901.06860
- The fractal dimension of Liouville quantum gravity: universality, monotonicity, and bounds (with J. Ding). Communications in Mathematical Physics. arXiv:1807.01072
- A mating-of-trees approach for graph distances in random planar maps (with N. Holden and X. Sun). Probability Theory and Related Fields. arXiv:1711.00723
- A distance exponent for Liouville quantum gravity (with N. Holden and X. Sun). Probability Theory and Related Fields. arXiv:1606.01214 (journal)
Random walk/conformal embeddings of random planar maps
Percolation on random planar maps
- Joint scaling limit of site percolation on random triangulations in the metric and peanosphere sense (with N. Holden and X. Sun). Electronic Journal of Probability. arXiv:1905.06757
- Convergence of percolation on uniform quadrangulations with boundary to SLE6 on √ 8/3 -Liouville quantum gravity (with J. Miller). Asterisque. arxiv:1701.05175
- Characterizations of SLEκ for κ ∈ (4,8) on Liouville quantum gravity (with J. Miller). Asterisque. arxiv:1701.05174
- Convergence of the free Boltzmann quadrangulation with simple boundary to the Brownian disk (with J. Miller). Annales de l'Institut Henri Poincarè. arxiv:1701.05173
- Chordal SLE6 explorations of a quantum disk (with J. Miller). Electronic Journal of Probability. arxiv:1701.05172
Self-avoiding walk on random planar maps
- Convergence of the self-avoiding walk on random quadrangulations to SLE8/3 on √ 8/3 -Liouville quantum gravity (with J. Miller). Annals de l'ENS. arxiv:1608.00956
- Metric gluing of Brownian and √ 8/3 -Liouville quantum gravity surfaces (with J. Miller). Annals of Probability. arxiv:1608.00955
- Scaling limit of the uniform infinite half-plane quadrangulation in the Gromov-Hausdorff-Prokhorov-uniform topology (with J. Miller). Electronic Journal of Probability. arxiv:1608.00954 (journal)
Fractal properties of SLE/LQG
Peanosphere convergence/mating-of-trees bijections
- Active spanning trees with bending energy on planar maps and SLE-decorated Liouville quantum gravity for κ > 8 (with
A. Kassel,
J. Miller, and
D. Wilson). Communications in Mathematical Physics. arxiv:1603.09722 (journal)
- Joint scaling limit of a bipolar-oriented triangulation and its dual in the peanosphere sense (with N. Holden and X. Sun). Acta Mathematica Sinica, English Series. arxiv:1603.01194
- Scaling limits for the critical Fortuin-Kasteleyn model on a random planar map III: finite volume case (with X. Sun). arxiv:1510.06346
- Scaling limits for the critical Fortuin-Kasteleyn model on a random planar map II: local estimates and empty reduced word exponent (with X. Sun). Electronic Journal of Probability. arxiv:1505.03375 (journal)
- Scaling limits for the critical Fortuin-Kasteleyn model on a random planar map I: cone times (with C. Mao and X. Sun). Annales de l'Institut Henri Poincarè. arxiv:1502.00546
First passage percolation
Undergraduate papers
- On Beckner's Inequality for Gaussian Measures (with E. Hsu). Elemente der Mathematik. (journal)
- Functional Inequalities for Gaussian and Log-Concave Probability Measures. Undergraduate Thesis. Northwestern University Undergraduate Research Journal. Adviser: Elton Hsu. (journal)
- On a Quaternionic Analogue of the Cross Ratio (with M. Libine) Advances in Applied Clifford Algebras. arxiv:1112.0612
- The Poisson Integral Formula and Representations of SU(1,1). Rose-Hulman Undergraduate Math Journal. (journal)
Talks
- Apr. 2025. Complex faces conference in Venice.
- Mar. 2025. University of Wisconsin Madison probability seminar.
- Dec. 2024. UIUC colloquium.
- Sep. 2024. MIT colloquium.
- Sep. 2024. MIT probability seminar.
- Sep. 2024. Purdue probability seminar.
- Jul. 2024. Recent Progress in Stochastic Analysis and its Applications, Loyola University.
- Mar. 2024. UChicago computational and applied math colloquium.
- Feb. 2024. Michigan State colloquium.
- Aug. 2023. Mini course at Aalto University, Helsinki. Video recordings available here.
- Mar. 2023. CU Boulder probability seminar.
- Feb. 2023. NYU Courant probability seminar.
- Jan. 2023. UChicago physics colloquium.
- Oct. 2022. Institute for advanced study probability seminar.
- Sep. 2022. Universality in mathematical physics mini school in Lyon (lecture notes).
- Sep. 2022. Kendall award lecture, Royal Statistical Society meeting in Aberdeen.
- Jul. 2022. ICM sectional lecture (online). Joint talk with Jian Ding and Julien Dubedat.
- Jul. 2022. Probability and Mathematical Physics ICM satellite conference in Helsinki (video). The talk is a solo version of my joint ICM sectional talk.
- May 2022. Universality: Random Matrices, Random Geometry and SPDEs conference at Oberwolfach.
- Apr. 2022. UChicago math colloquium.
- Apr. 2022. Stanford probability seminar.
- Mar. 2022. The Analysis and Geometry of Random Spaces workshop at MSRI.
- Feb. 2022. Lyon probability seminar (online).
- Nov. 2021. Geneva Mathematical Physics seminar (online).
- Jan. 2021. Expository talk for Trinity college, Cambridge alumni (online).
- Dec. 2020. Oberseminar Stochastik at University of Bonn (online).
- Nov. 2020. University of Bristol probability seminar (online).
- Oct. 2020. AMS Sectional meeting (originally at Penn state, now online).
- Aug. 2020. Bernoulli-IMS One World Symposium, ``Models in Physics" session. (online)
- Apr. 2020. University of Bath probability seminar (online).
- Mar. 2020. Cambridge mathematical physics seminar.
- Jan. 2020. Wharton (UPenn) statistics seminar.
- Dec. 2019. Northwestern University colloquium.
- Dec. 2019. University of Chicago colloquium.
- Dec. 2019. University of Chicago probability seminar.
- Nov. 2019. Heat Kernels, Stochastic Processes and Functional Inequalities workshop at Oberwolfach.
- Oct. 2019. EPFL probability seminar.
- Sep. 2019. Princeton University probability seminar.
- Sep. 2019. Penn/Temple probability seminar.
- Jul. 2019. Stochastic Processes and their applications conference at Northwestern University.
- Jun. 2019. Probability and quantum field theory: discrete models, CFT, SLE and constructive aspects, conference in Porquerolle, France.
- May 2019. University of Cambridge probability seminar.
- Mar. 2019. Vienna probability seminar.
- Feb. 2019. University of Warwick probability seminar.
- Dec. 2018. Amir Dembo birthday conference, Stanford University.
- Oct. 2018. Imerial College London stochastic analysis seminar.
- Oct. 2018. Columbia University probability seminar.
- Jul. 2018. Random Geometry followup workshop at the Isaac Newton Institute. (video)
- Jun. 2018. IST Austria Summer School in Probability and Mathematical Physics.
- Mar. 2018. Stony Brook University analysis seminar.
- Feb. 2018. Brown University graduate student conference.
- Feb. 2018. Penn/Temple probability seminar.
- Dec. 2017. Tel Aviv university probability seminar.
- Oct. 2017. Oberwolfach seminar: Scaling limits of random planar maps and Liouville quantum gravity.
- Oct. 2017. Zurich graduate student probability seminar.
- Oct. 2017. Zurich probability seminar.
- Sep. 2017. Princeton University topics in probability seminar.
- May 2017. Stochastic Analysis: Geometry of Random Processes workshop at Oberwolfach.
- Apr. 2017. Brown discrete math seminar.
- Apr. 2017. AMS Sectional meeting at Indiana University.
- Mar. 2017. SLE, GFF, and LQG in NYC workshop at Columbia University.
- Feb. 2017. Cornell probability seminar.
- Jun. 2016. Recent developments in SLE conference at the Institut Mittag-Leffler.
- Feb. 2016. MIT probability seminar.
- Jan. 2016. University of Chicago probability seminar.
- Nov. 2015. Michigan State University probability seminar.
- Oct. 2015. Northwestern University analysis seminar.
- Aug. 2015.Microsoft Research, Redmond, WA. (video)
- Jan. 2015. Conformally invariant scaling limits conference at the Isaac Newton Institute. (video)