206 citations · 1.4k across the 32 of their papers we have counts for
32 papers
Adiabatic vacua from linear complex structures
Eugenio Bianchi, Yusuf Ghelem, Lucas Hackl
Adiabatic vacua play a central role in quantum fields in cosmological spacetimes, where they serve as distinguished initial conditions and as reference states for the renormalizati…
Representation theory of Gaussian unitary transformations for bosonic and fermionic systems
Tommaso Guaita, Lucas Hackl, Thomas Quella
Gaussian unitary transformations are generated by quadratic Hamiltonians, i.e., Hamiltonians containing quadratic terms in creations and annihilation operators, and are heavily use…
Average pure-state entanglement entropy in spin systems with SU(2) symmetry
Rohit Patil, Lucas Hackl, George R. Fagan +1
We study the effect that the SU(2) symmetry, and the rich Hilbert space structure that it generates in lattice spin systems, has on the average entanglement entropy of highly excit…
Hilbert space fragmentation and interaction-induced localization in the extended Fermi-Hubbard model
Philipp Frey, Lucas Hackl, Stephan Rachel
We study Hilbert space fragmentation in the extended Fermi-Hubbard model with nearest and next-nearest-neighbor interactions. Using a generalized spin/mover picture and saddle poin…
Volume-law entanglement entropy of typical pure quantum states
Eugenio Bianchi, Lucas Hackl, Mario Kieburg +2
The entanglement entropy of subsystems of typical eigenstates of quantum many-body Hamiltonians has been recently conjectured to be a diagnostic of quantum chaos and integrability.…
Linear growth of the entanglement entropy for quadratic Hamiltonians and arbitrary initial states
Giacomo De Palma, Lucas Hackl
We prove that the entanglement entropy of any pure initial state of a bipartite bosonic quantum system grows linearly in time with respect to the dynamics induced by any unstable q…