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Characterization of the Quasi-Stationary State of an Impurity Driven by Monochromatic Light II: Microscopic Foundations 

Bru, J.-B.Autoridad BCAM; de Siqueira Pedra, W.Autoridad BCAM (2015-12-31)
From quantum mechanical first principles only, we rigorously study the time-evolution of a N-level atom (impurity) interacting with an external monochromatic light source within an infinite system of free electrons at ...
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D-Wave pairing driven by bipolaric modes related to giant electron-phonon anomalies in high-Tc superconductors 

Bru, J.-B.Autoridad BCAM; de Pasquale, A.D.; de Siqueira Pedra, W.Autoridad BCAM (2015-12-31)
Taking into account microscopic properties of most usual high-Tc superconductors, like cuprates, we define a class of microscopic model Hamiltonians for two fermions (electrons or holes) and one boson (bipolaron) on the ...
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Microscopic conductivity of lattice fermions at equilibrium. I. Non-interacting particles 

Bru, J.-B.Autoridad BCAM; de Siqueira Pedra, W.Autoridad BCAM; Hertling, C. (2015-12-31)
We consider free lattice fermions subjected to a static bounded potential and a timeand space-dependent electric field. For any bounded convex region R ⊂ ℠(d (d ≥ 1) of space, electric fields ε within R drive currents. ...
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AC-Conductivity Measure from Heat Production of Free Fermions in Disordered Media 

Bru, J.-B.Autoridad BCAM; de Siqueira Pedra, W.Autoridad BCAM; Hertling, C. (2015-12-31)
We extend (Bru et al. in J Math Phys 56:051901-1-51, 2015) in order to study the linear response of free fermions on the lattice within a (independently and identically distributed) random potential to a macroscopic electric ...
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Microscopic Conductivity of Lattice Fermions at Equilibrium. Part II: Interacting Particles 

Bru, J.-B.Autoridad BCAM; de Siqueira Pedra, W.Autoridad BCAM (2015-12-31)
We apply Lieb–Robinson bounds for multi-commutators we recently derived (Bru and de Siqueira Pedra, Lieb–Robinson bounds for multi-commutators and applications to response theory, 2015) to study the (possibly non-linear) ...
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From the 2nd Law of Thermodynamics to AC–Conductivity Measures of Interacting Fermions in Disordered Media 

Bru, J.-B.Autoridad BCAM; de Siqueira Pedra, W.Autoridad BCAM (2015-05-20)
We study the dynamics of interacting lattice fermions with random hopping amplitudes and random static potentials, in presence of time-dependent electromagnetic fields. The interparticle interaction is short-range and ...

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AuthorBru, J.-B. (6)de Siqueira Pedra, W. (6)Hertling, C. (2)de Pasquale, A.D. (1)Subjectconductivity measure (2)transport processes (2)Disordered systems (1)disordered systems (1)Hubbard model (theory) (1)quantum phase transitions (theory) (1)rigorous results in statistical mechanics (1)... másFecha
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