118 citations · 487 across the 21 of their papers we have counts for
4 papers · 1 filter
Entanglement entropy in the Long-Range Kitaev chain
F. Ares, J. G. Esteve, F. Falceto +1
In this paper we complete the study on the asymptotic behaviour of the entanglement entropy for Kitaev chains with long range pairing. We discover that when the couplings decay wit…
Entanglement entropy and Möbius transformations for critical fermionic chains
F. Ares, J. G. Esteve, F. Falceto +1
Entanglement entropy may display a striking new symmetry under Möbius transformations. This symmetry was analysed in our previous work for the case of a non-critical (gapped) free…
Entanglement in fermionic chains with finite range coupling and broken symmetries
F. Ares, J. G. Esteve, F. Falceto +1
We obtain a formula for the determinant of a block Toeplitz matrix associated with a quadratic fermionic chain with complex coupling. Such couplings break reflection symmetry and/o…
Entanglement, Particle Identity and the GNS Construction: A Unifying Approach
A. P. Balachandran, T. R. Govindarajan, Amilcar R. de Queiroz +1
A novel approach to entanglement, based on the Gelfand-Naimark-Segal (GNS) construction, is introduced. It considers states as well as algebras of observables on an equal footing.…