8 papers
Landauer-based study of transport in Chern insulator heterostructures
J. Luna-Ramos, A. Martín-Ruiz
We study charge transport through a trivial-topological-trivial junction described by the continuous Qi-Wu-Zhang model, which realizes a two-dimensional Chern-insulating phase. The…
Fermionic Casimir effect in an axial Lorentz-violating background
A. Martín-Ruiz, M. B. Cruz, E. R. Bezerra de Mello
We investigate the fermionic Casimir effect for a Dirac field confined between two parallel plates with MIT bag boundary conditions in the presence of CPT-odd Lorentz-symmetry viol…
Symmetric Nonlinear Cellular Automata as Algebraic References for Rule 30
E. Chan-López, A. Martín-Ruiz
A comparative algebraic framework for elementary cellular automata is developed, centered on the role of spatial symmetry. The primary object of study is Rule 22, the elementary ce…
Electromagnetic radiation mediated by topological surface states
M. Ibarra-Meneses, A. Martín-Ruiz
We study electromagnetic radiation from classical sources near a planar interface separating a topological and a trivial insulator, modeled within axion electrodynamics. The system…
Probing Lorentz symmetry violation via the Casimir effect in rectangular cavities
M. B. Cruz, E. R. Bezerra de Mello, A. Martín-Ruiz
We investigate the Casimir effect as a probe of Lorentz symmetry violation for a real scalar field confined to a rectangular waveguide with Dirichlet boundary conditions. The field…
Nullcline geometry constrains the location of oscillatory instabilities in planar predator--prey systems
E. Chan-López, A. Martín-Ruiz, Víctor Castellanos
We prove that the critical structure of the prey nullcline governs where oscillatory instabilities can emerge in planar predator--prey systems. For a broad class of Gause--type mod…
Charge and energy transport in graphene with smooth finite-range disorder
Juan A. Cañas, Daniel A. Bonilla, J. C. Pérez-Pedraza +1
We investigate charge and energy transport in monolayer graphene with smooth finite-range disorder, modeled by soft impurity potentials. Using a continuum Dirac model, we go beyond…
Casimir effect between semitransparent mirrors in a Lorentz-violating background
Román Linares, C. A. Escobar, A. Martín-Ruiz +1
We investigate the Casimir effect for a massless scalar field confined between two parallel semitransparent mirrors in a vacuum modified by spontaneous Lorentz symmetry breaking. U…