Research Topics

I am interested in developing and applying techniques from microlocal and semi-classical analysis to study operators on sub-Riemannian manifolds. Sub-Riemannian geometry is a vast generalization of Riemannian geometry, providing a framework for gauge theory, control theory, and quantum mechanical phenomena, among other things. Singular objects in sub-Riemannian geometry have no Riemannian counterpart, and appear to dominate spectral behavior. Representation-theoretic techniques play a big role in my research. The main fields involved in my work are microlocal analysis, semi-classical analysis, sub-Riemannian geometry, inverse problems, and representation theory. Some general research directions include:

Microlocal and Semi-classical Analysis of Sub-elliptic Operators

  • Develop a robust symbol calculus on sub-Riemannian manifolds using representation theory.
  • Characterize quantum limits for subelliptic operators on sub-Riemannian manifolds. Relate their invariance properties to the underlying geodesic flow.

Integral Geometry and X-ray Transforms on Carnot Groups

  • Proving injectivity and stability of X-ray transforms on Carnot Lie groups.

Dynamics of a Particle in a Yang-Mills Field

  • Study the scattering map and the X-ray transform for a particle in a Yang-Mills field on surfaces.
  • Localization of a quantum particle in a Yang-Mills field and its energy asymptotics.