35 citations · 209 across the 9 of their papers we have counts for
3 papers · 1 filter
Open Wilson chains for quantum impurity models: Keeping track of all bath modes
Benedikt Bruognolo, Nils-Oliver Linden, Frauke Schwarz +6
When constructing a Wilson chain to represent a quantum impurity model, the effects of truncated bath modes are neglected. We show that their influence can be kept track of systema…
Anatomy of quantum critical wave functions in dissipative impurity problems
Zach Blunden-Codd, Soumya Bera, Benedikt Bruognolo +5
Quantum phase transitions reflect singular changes taking place in a many-body ground state, however, computing and analyzing large-scale critical wave functions constitutes a form…
Dynamic structure factor of the spin-1/2 XXZ chain in a transverse field
Benedikt Bruognolo, Andreas Weichselbaum, Jan von Delft +1
The spin- XXZ chain with easy-plane anisotropy in a transverse field describes well the thermodynamic properties of the material in a wide range of…