64 citations · 186 across the 16 of their papers we have counts for
6 papers · 1 filter
Inversion symmetry breaking and criticality in free fermionic lattices
Zoltan Kadar
We describe the connection between inversion symmetry breaking and criticality in free fermionic lattice models. It is shown that for translation-invariant spinless fermions, the b…
Simulating continuous quantum systems by mean field fluctuations
Zoltan Kadar, Michael Keyl, Geza Toth +1
In this paper we are discussing the question how a continuous quantum system can be simulated by mean field fluctuations of a finite number of qubits. On the kinematical side this…
Quantum Transport Enhancement by Time-Reversal Symmetry Breaking
Zoltan Zimboras, Mauro Faccin, Zoltan Kadar +3
Quantum mechanics still provides new unexpected effects when considering the transport of energy and information. Models of continuous time quantum walks, which implicitly use time…
Entanglement entropy in quantum spin chains with broken reflection symmetry
Zoltan Kadar, Zoltan Zimboras
We investigate the entanglement entropy of a block of L sites in quasifree translation-invariant spin chains concentrating on the effect of reflection symmetry breaking. The majora…
Entanglement distillation from quasifree Fermions
Zoltan Kadar, Michael Keyl, Dirk Schlingemann
We develop a scheme to distill entanglement from bipartite Fermionic systems in an arbitrary quasifree state. It can be applied if either one system containing infinite one-copy en…
Microscopic description of 2d topological phases, duality and 3d state sums
Zoltan Kadar, Annalisa Marzuoli, Mario Rasetti
Doubled topological phases introduced by Kitaev, Levin and Wen supported on two dimensional lattices are Hamiltonian versions of three dimensional topological quantum field theorie…