3 papers
physics.chem-ph2026
High-Order Response Functions with Duschinsky Coupling and Finite Temperature: Application to Two-Dimensional Resonance Raman Spectroscopy
Luca Nils Philipp, Tomislav BeguÅ¡iÄ, Tomislav Begušić
In this work, we derive closed-form expressions for multi-time correlation functions underlying higher-order nonlinear spectroscopic response functions within the harmonic approxim…
physics.chem-ph2026
Two-dimensional IR-Raman spectroscopy of vibrational polaritons: Role of dipole surfaces
Xinwei Ji, Tomislav Begusic, Tao E. Li
Nonlinear spectroscopy provides a unique perspective to understand time-resolved molecular dynamics under vibrational strong coupling (VSC). Herein, equilibrium-nonequilibrium cavi…
quant-ph2025
Real-time operator evolution in two and three dimensions via sparse Pauli dynamics
Tomislav BeguÅ¡iÄ, Garnet Kin-Lic Chan
We study real-time operator evolution using sparse Pauli dynamics, a recently developed method for simulating expectation values of quantum circuits. On the examples of energy and…