253 citations · 2k across the 74 of their papers we have counts for
9 papers · 1 filter
Transmission across a bilayer graphene region
Hadi Z. Olyaei, Pedro Ribeiro, Eduardo V. Castro
The transmission across a graphene bilayer region is calculated for two different types of connections to monolayer leads. A transfer matrix algorithm based on a tight binding mode…
Classical and quantum liquids induced by quantum fluctuations
Miguel M. Oliveira, Pedro Ribeiro, Stefan Kirchner
Geometrically frustrated interactions may render classical ground-states macroscopically degenerate. The connection between classical and quantum liquids and how the degeneracy is…
Dirac points merging and wandering in a model Chern insulator
Miguel Gonçalves, Pedro Ribeiro, Eduardo V. Castro
We present a model for a Chern insulator on the square lattice with complex first and second neighbor hoppings and a sublattice potential which displays an unexpectedly rich physic…
Temperature-driven gapless topological insulator
Miguel Gonçalves, Pedro Ribeiro, Rubem Mondaini +1
We investigate the phase diagram of the Haldane-Falicov-Kimball model -- a model combining topology, interactions and spontaneous disorder at finite temperatures. Using an unbiased…
The Haldane model under quenched disorder
Miguel Gonçalves, Pedro Ribeiro, Eduardo V. Castro
We study the half-filled Haldane model with Anderson and binary disorder and determine its phase diagram, as a function of the Haldane flux and staggered sub-lattice potential, for…
Integrable quantum dynamics of open collective spin models
Pedro Ribeiro, Tomaž Prosen
We consider a collective quantum spin- in contact with Markovian spin-polarized baths. Using a conserved super-operator charge, a differential representation of the Liouvillian…