149 citations · 1.7k across the 59 of their papers we have counts for
4 papers · 1 filter
Entanglement negativity in two-dimensional free lattice models
Viktor Eisler, Zoltán Zimborás
We study the scaling properties of the ground-state entanglement between finite subsystems of infinite two-dimensional free lattice models, as measured by the logarithmic negativit…
Symmetry criteria for quantum simulability of effective interactions
Zoltán Zimborás, Robert Zeier, T. Schulte-Herbrueggen +1
What can one do with a given tunable quantum device? We provide complete symmetry criteria deciding whether some effective target interaction(s) can be simulated by a set of given…
On squares of representations of compact Lie algebras
Robert Zeier, Zoltán Zimborás
We study how tensor products of representations decompose when restricted from a compact Lie algebra to one of its subalgebras. In particular, we are interested in tensor squares w…
On the partial transpose of fermionic Gaussian states
Viktor Eisler, Zoltan Zimboras
We consider Gaussian states of fermionic systems and study the action of the partial transposition on the density matrix. It is shown that, with a suitable choice of basis, these s…