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Research


My research lies in the field of Probability Theory and its applications to models of statistical physics (random media, random polymers, Kardar-Parisi-Zhang universality, scaling limits of disordered systems, Stochastic PDEs). I am also interested in the relations to random matrices, PDEs, representation theory and combinatorics.

  • On the moments of the (2+1)-dimensional directed polymer and stochastic heat equation in the critical window, (with F. Caravenna and R. Sun), arxiv.1808.03586
  • The Dicman subordinator, renewal theorems and disordered systems, (with F. Caravenna and R. Sun), arXiv:1805.01465
  • GOE and Airy_{2\to1} marginal distribution via symplectic Schur functions, (with E. Bisi), arXiv:1711.05120, to appear, Springer Volume for Raghu Varadhan's 75th birthday
  • Point-to-line polymers and orthogonal Whittaker functions, (with E. Bisi), arXiv:1703.07337, to appear Transactions of the AMS
  • Universality in marginally relevant disordered systems, (with F. Caravenna and R. Sun), arxiv:1510.06287, Ann. Appl. Prob. 2017, Vol. 27, No. 5, 3050-3112
  • Variants of geometric RSK, geometric PNG and the multipoint distribution of the log-gamma polymer, (with Vu Lan Nguyen) arXiv:1509.03515, Int. Math. Res. Notices, 2017 (15): 4732-4795
  • High temperature limits of (1+1)-dimensional directed polymer with heavy-tailed disorder, (with P. Dey) arxiv:1503.01054, Ann. Prob., 2016, Vol. 44, No. 6, 4006-4048
  • The continuum disordered pinning model (with F. Caravenna and R. Sun), arXiv:1406.5088, Prob. Theory Rel. Fields, (2016), no. 1-2, 17-59
  • Polynomial chaos and scaling limits of disordered systems (with F. Caravenna and R. Sun, J. Eur. Math. Soc. 19 (2017), 1-65 arXiv: 1312.3357.pdf
  • The Critical Curve of the Random Pinning and Copolymer Models at Weak Coupling (with Q. Berger, F. Caravenna, J. Poisat and R. Sun), Comm. Math. Phys., Volume 326, Issue 2, (2014), 507-530 arXiv:1301.5308
  • Geometric RSK correspondence, Whittaker functions and symmetrized random polymers (with N. O'Connell and T. Seppalainen), Inventiones Math., Volume 197, Issue 2, 361-416 (2014) publisher open access, arxiv:1210.5126
  • Path properties of the disordered pinning polymer in the delocalized regime (with K. Alexander), Ann. Appl. Prob., Vol. 24, No. 2, 599–615 (2014) arXiv:1210.1862

  • Subgaussian concentration and rates of convergence in directed polymers (with K. Alexander) Electronic J. Prob., 18 (2013), no. 5, 1–28. arxiv.1204.1819

  • Tropical combinatorics and Whittaker functions, (with I. Corwin, N. O'Connell, T.Seppalainen), Duke Math J., (2014) Volume 163, Number 3, 513-563 arXiv:1110.3489

  • Strong disorder in semidirected random polymers, Ann. Inst. Henri Poincare (B) Prob. Stat. (2013), Vol. 49, No. 3, 753–780 http://arxiv.org/abs/1009.2693

Reviews and Proceedings
  • Sacling limits of disordered systems and disorder relevance (with F. Caravenna, R. Sun), Proceedings of the XVIII International Congress of Mathematical Physics, arxiv.1602.05825
  • Semidirected random polymers: Strong disorder and localization, Actes des rencontres du CIRM, 2 no. 1, (2010) p. 47-48, journal link
  • Phase transitions in random pinning polymers, Oberwolfach reports, No. 38/2009, 378-379
PhD Thesis


Polymers, Algebraic combinatorics & KPZ universality

Above: polymers, algebraic combinatorics and KPZ universality on top of a coffee stain - logo from the workshop `Random polymers and algebraic combinatorics', organised at the Clay Math Institute and supported jointly by EPSRC.