Перегляд за автором "Medina, E."

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  • Entanglement production under electron phonon interaction in a quantum dot 
    Lopez, A.; Medina, E. (Condensed Matter Physics, 2006)
    We consider the quantum dot entangler device introduced by Oliver et al. [1] coupled to a single phonon mode. While we take the phonon interaction to all orders, we perform a fourth order calculation in electron-dot coupling. ...
  • Equilibrium currents in a Corbino graphene ring 
    López, A.; Bolívar, N.; Medina, E.; Berche, B. (Condensed Matter Physics, 2014)
    We address the description of a graphene Corbino disk in the context of a tight binding approach that includes both kinetic and Rashba spin-orbit coupling due to an external out-of-plane electric field. Persistent equilibrium ...
  • Gauge field theory approach to spin transport in a 2D electron gas 
    Berche, B.; Bolìvar, N.; López, A.; Medina, E. (Condensed Matter Physics, 2009)
    We discuss the Pauli Hamiltonian including the spin-orbit interaction within an U(1) * SU(2) gauge theory interpretation, where the gauge symmetry appears to be broken. This interpretation offers new insight into the ...
  • Rashba spin-orbit interaction enhanced by graphene in-plane deformations 
    Berche, B.; Mireles, F.; Medina, E. (Condensed Matter Physics, 2017)
    Graphene consists in a single-layer carbon crystal where 2pz electrons display a linear dispersion relation in the vicinity of the Fermi level, conveniently described by a massless Dirac equation in 2+1 spacetime. ...