Robert Chang

About

I am an Assistant Professor of Mathematics at New College of Florida. My PhD supervisor is Steve Zelditch at Northwestern University.

My research lies in the intersection of microlocal analysis, complex analysis, and probability. I am interested in mathematical problems arising from quantum mechanics, such as quantum chaos, nodal sets and Lp norms of eigenfunctions, as well as spectral asymptotics.

These days, I have been working with Grauert tubes, developing tools such as Szegő kernel asymptotics to study analytic extensions (Husimi distributions) of eigenfunctions.

CV updated August 2025.

Teaching

Spring 2026

• MAC 2311: Calculus I

• MAS 3214: Introduction to Number Theory

• MAT 4930: Mathematics Seminar

• Tutorial: Random Matrix Theory

• Tutorial: Markov Chains

Fall 2025

• MAA 4226: Analysis I

• STA 2442/2443: Probability I/II

• MAT 4930: Mathematics Seminar

• Tutorial: Calculus II

Old teaching

Papers and Preprints

• (with A. Moll) Fractional Gaussian fields in geometric quantization and semi-classical analysis of coherent states.
  In preparation.

• (with P. Zhou) Slepian-type theorem for Toeplitz operators
  In preparation.

• Hamiltonian Grauert tubes for Schrödinger operators
  In preparation.

• (with A. Rabinowitz) Szegő kernel asymptotics and concentration of Husimi distributions of eigenfunctions
  arXiv: 2202.14013. Submitted.

• (with A. Rabinowitz) Scaling asymptotics for Szegő kernels on Grauert tubes
  arXiv: 2107.05105. J. Geom. Anal. 33 (2023), no. 2, article no. 60.

• (with S. Zelditch) Log-scale equidistribution of nodal sets in Grauert tubes
  arXiv: 1803.03579. J. Math. Pures Appl. (9) 129 (2019), pp. 213–241.

• (with S. Zelditch) Log-scale equidistribution of zeros of quantum ergodic eigensections
  arXiv: 1708.02333. Ann. Henri Poincaré 19 (2018), no. 12, pp. 3783–3814.

• Quantum ergodicity of Wigner induced spherical harmonics
  arXiv: 1512.03138. J. Spectr. Theory 8 (2018), no. 2, pp. 523–540.