3 papers
cond-mat.str-el2026
Hamiltonian Monte Carlo enhanced by Exact Diagonalization
Finn L. Temmen, Martina Gisti, David J. Luitz +2
Strongly correlated fermionic systems are of great interest in condensed matter physics and numerical methods are indispensable tools for their study. However, existing approaches…
cond-mat.str-el2025
Symmetry resolved out-of-time-order correlators of Heisenberg spin chains using projected matrix product operators
Martina Gisti, David J. Luitz, Maxime Debertolis
We extend the concept of operator charge in the context of an abelian U (1) symmetry and apply this framework to symmetry-preserving matrix product operators (MPOs), enabling the d…
quant-ph2025
Robust and Indestructible Macroscopic Entanglement
Martina Gisti, Miguel Gallego, Borivoje Dakić
In this letter we investigate the possibility of observing macroscopic entanglement, considering realistic factors such as decoherence, particle losses, and measurements of limited…