3 papers
quant-ph2026
Tackling instabilities of quantum Krylov subspace methods: an analysis of the numerical and statistical errors
Maria Gabriela Jordão Oliveira, Karl Michael Ziems, Nina Glaser
Krylov subspace methods are among the most extensively studied early fault-tolerant quantum algorithms for estimating ground-state energies of quantum systems. However, the rapid o…
physics.chem-ph2025
N-Mode Quantized Anharmonic Vibronic Hamiltonians for Matrix Product State Dynamics
Valentin Barandun, Nina Glaser, Markus Reiher
Theoretical predictions of photochemical processes are essential for interpreting and understanding spectral features. Reliable quantum dynamics calculations of vibronic systems re…
physics.comp-ph2025
QCMaquis 4.0: Multi-Purpose Electronic, Vibrational, and Vibronic Structure and Dynamics Calculations with the Density Matrix Renormalization Group
Kalman Szenes, Nina Glaser, Mihael Erakovic +6
QCMaquis is a quantum chemistry software package for general molecular structure calculations in a matrix product state/matrix product operator formalism of the density matrix reno…