Montoya-CastilloGroup

Theoretical Chemistry · University of Colorado Boulder
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Theory & computation for complex systems

We develop theoretical and computational tools to understand how charge, energy, and information flow through complex quantum and classical systems.

Our work sits at the interface of physical chemistry, condensed matter physics, applied mathematics, and quantum information, with applications from solar energy conversion and electrocatalysis to quantum sensing and the molecular origins of disease.

Predicting the dynamics of many-body systems with controllable accuracy.
What we study

Research

Andrés Montoya-Castillo
Principal Investigator

Andrés Montoya-Castillo

Assistant Professor of Chemistry · CU Boulder

Andrés is a theoretical chemist working at the intersection of physical chemistry, applied mathematics, and quantum information science. He received his PhD in Chemical Physics from Columbia University and was a postdoctoral fellow at Stanford before starting the group at CU Boulder.

Recent honors · JCP Emerging Investigator Award · Camille Dreyfus Teacher-Scholar · Sloan Research Fellow · NSF CAREER · Packard Fellow · Kavli Fellow

Recent Publications

All publications →
˚ corresponding · * equal · underlined = group member at CU Boulder
  1. T. Li, P. Venkatesh, Q. Shi˚, AMC˚. “For molecular polaritons, disorder and phonon timescales control the activation of dark states in the thermodynamic limit.” J. Phys. Chem. Lett., in press (2026)
  2. N. I. Hausman, J. Kelly, M. S. Chen, F. Hu, A. Lee, AMC, G. S. Schlau-Cohen, T. E. Markland. “Streamlining analysis and design of two-dimensional electronic spectroscopy using machine learning.” J. Chem. Phys., 165, 074109 (2026)
  3. M. R. Laskowski, S. Bhattacharyya, AMC˚. “How to improve the accuracy of semiclassical and quasiclassical dynamics with and without generalized quantum master equations.” J. Chem. Phys., 164, 224115 (2026)
  4. T. Li*, P. Venkatesh*, N. Shitara, AMC˚. “Numerically exact quantum dynamics with tensor networks: Predicting the decoherence of interacting spin systems.” J. Chem. Phys., 164, 091103 (2026)

Join Us

We are looking for curious graduate students and postdocs from every background who want to build the theory behind tomorrow’s chemistry, materials, and quantum technologies.

Open positions →