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Classical Antiferromagnetism in Kinetically Frustrated Electronic Models
(American Physical Society, 2014-05)
We study, by means of the density matrix renormalization group, the infinite U Hubbard model—with one hole doped away from half filling—in triangular and square lattices with frustrated hoppings, which invalidate Nagaoka’s ...
Effects of active-sterile neutrino mixing during primordial nucleosynthesis
(World Scientific, 2014-11)
In the present work, we discuss the effects of the inclusion of sterile-active neutrino oscillations during the production of primordial light-nuclei. We assume that the sterile neutrino mass-eigenstate might oscillate ...
Nonequilibrium electronic transport in a one-dimensional Mott insulator
(American Physical Society, 2010-10)
We calculate the nonequilibrium electronic transport properties of a one-dimensional interacting chain at half filling, coupled to noninteracting leads. The interacting chain is initially in a Mott insulator state that is ...
SU(4) Kondo entanglement in double quantum dot devices
(American Physical Society, 2017-08-28)
We analyze, from a quantum information theory perspective, the possibility of realizing an SU(4) entangled Kondo regime in semiconductor double quantum dot devices. We focus our analysis on the ground-state properties and ...
An efficient impurity-solver for the dynamical mean field theory algorithm
(Instituto de Física de Líquidos y Sistemas Biológicos, 2017-08-01)
One of the most reliable and widely used methods to calculate electronic structure of strongly correlated models is the Dynamical Mean Field Theory (DMFT) developed over two decades ago. It is a non-perturbative algorithm ...
A non-Markovian approach for two dissipative quantum walks
(Springer, 2018-10)
We study the non-Markovian evolution of two free spinless distinguishable particles in a 1D lattice using a completely positive map. The Renewal theory is used to introduce, in a phenomenological way, the concept of disorder ...
Novel vacuum conditions in inflationary collapse models
(Elsevier Science, 2017-11-10)
Within the framework of inflationary models that incorporate a spontaneous reduction of the wave function for the emergence of the seeds of cosmic structure, we study the effects on the primordial scalar power spectrum by ...
Pumping current of a Luttinger liquid with finite length
(Springer, 2012-04)
We study transport properties in a Tomonaga-Luttinger liquid in the presence of two timedependent point like weak impurities, taking into account finite-length effects. By employing analytical methods and performing a ...