143 citations · 372 across the 7 of their papers we have counts for
4 papers · 1 filter
Two-body problem in graphene
J. Sabio, F. Sols, F. Guinea
We study the problem of two Dirac particles interacting through non-relativistic potentials and confined to a two-dimensional sheet, which is the relevant case for graphene layers.…
Variational approach to the Caldeira-Leggett model
Javier Sabio, Fernando Sols
We apply the displaced-oscillator variational ansatz to the Caldeira-Leggett model for a quantum particle in a one-dimensional box described by a tight-binding chain. We focus on t…
f-Sum Rule and Unconventional Spectral Weight Transfer in Graphene
J. Sabio, J. Nilsson, A. H. Castro Neto
We derive and analyze the f-sum rule for a two-dimensional (2D) system of interacting electrons whose behavior is described by the Dirac equation. We apply the sum rule to analyze…
Phase diagram of the dissipative quantum particle in a box
J. Sabio, L. Borda, F. Guinea +1
We analyze the phase diagram of a quantum particle confined to a finite chain, subject to a dissipative environment described by an Ohmic spectral function. Analytical and numerica…