Author

K. Matchev

2 papers indexed here

We haven’t gathered this author’s papers yet. Follow them and we’ll fetch their work.

Not the right person? Other researchers publish under this name.

Preprint Aug 2026

Efficient Hamiltonian Truncation: Fast Matrix Construction and Quantum Krylov Diagonalization

Hamiltonian truncation offers a nonperturbative route to quantum field theory, yet its accuracy is limited by the rapid expansion of the truncated Hilbert space, which drives up computational cost. We tackle this bottleneck with a hybrid strategy that pairs classical and quantum algorithms: 1) we develop an efficient b...

R. Houtz, M. Knipfer, K. Matchev et al. · 1 citation

Jul 2026

Analytical Landscape of Maximal Magic for Two-Qutrit States and Beyond

Achieving a genuine quantum advantage relies on two distinct non-classical resources that restrict efficient classical simulation: entanglement and magic (nonstabilizerness). We investigate the interplay between these resources by characterizing the Pareto frontiers of extreme magic at fixed entanglement for systems of...

M. Knipfer, Alexander Roman, K. Matcheva et al. · arXiv.org · 0 citations