13 papers
Link representation of the entanglement entropies for all bipartitions
Sudipto Singha Roy, Silvia N. Santalla, Germán Sierra +1
We have recently shown that the entanglement entropy of any bipartition of a quantum state can be approximated as the sum of certain link strengths connecting internal and external…
Effects of confinement and vaccination on an epidemic outburst: a statistical mechanics approach
Óscar Toledano, Begoña Mula, Silvia N. Santalla +2
This work describes a simple agent model for the spread of an epidemic outburst, with special emphasis on mobility and geographical considerations, which we characterize via statis…
Bulk-edge correspondence in the Haldane phase of the bilinear-biquadratic spin-1 Hamiltonian
Sudipto Singha Roy, Silvia N. Santalla, Javier Rodríguez-Laguna +1
The Haldane phase is the prototype of symmetry protected topological (SPT) phases of spin chain systems. It can be protected by several symmetries having in common the degeneracy o…
Casimir forces on deformed fermionic chains
Begoña Mula, Silvia N. Santalla, Javier Rodríguez-Laguna
We characterize the Casimir forces for the Dirac vacuum on free-fermionic chains with smoothly varying hopping amplitudes, which correspond to (1+1)D curved spacetimes with a stati…
Piercing the rainbow: entanglement on an inhomogeneous spin chain with a defect
Nadir Samos Sáenz de Buruaga, Silvia N. Santalla, Javier Rodríguez-Laguna +1
The {\em rainbow state} denotes a set of valence bond states organized concentrically around the center of a spin 1/2 chain. It is the ground state of an inhomogeneous XX Hamiltoni…
First-Passage Percolation under extreme disorder: from bond-percolation to Kardar-Parisi-Zhang universality
Daniel Villarrubia, Iván Álvarez Domenech, Silvia N. Santalla +2
We consider the statistical properties of arrival times and balls on first-passage percolation (FPP) square lattices with strong disorder in the link-times. A previous work sh…