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Nucleation of superfluid-light domains in a quenched dynamics
(2018)
Strong correlation effects emerge from light-matter interactions in coupled resonator arrays, such as the Mott-insulator to superfluid phase transition of atom-photon excitations. We demonstrate that the quenched dynamics ...
Many-body dynamics of the decay of excitons of different charges in a quantum dot
(American Physical Society, 2016-12-05)
We calculate the photoluminescence spectrum of a single semiconductor quantum dot strongly coupled to a continuum as a function of light frequency, gate voltage, and magnetic field. The spectrum is dominated by the ...
Estudo de propriedades de defeitos quânticos na abordagem holográfica
(Universidade Federal do Rio Grande do NorteBrasilUFRNPROGRAMA DE PÓS-GRADUAÇÃO EM FÍSICA, 2020-06-09)
In this thesis, we present a review of the proposal for AdS/BCFT by T. Takayanagi
for the holographic description of boundary systems, in particular, boundary conformal field
theories (BCFTs). Motivated by a better ...
Signatures of quantum phase transitions in parallel quantum dots: Crossover from local moment to underscreened spin-1 Kondo physics
(AMER PHYSICAL SOCCOLLEGE PK, 2012)
We study a strongly interacting "quantum dot 1" and a weakly interacting "dot 2" connected in parallel to metallic leads. Gate voltages can drive the system between Kondo-quenched and non-Kondo free-moment phases separated ...
Shell-isolated nanoparticle-enhanced fluorescence (SHINEF) of CdTe quantum dots
(Elsevier, 2015)
We report shell-isolated nanoparticle-enhanced fluorescence (SHINEF) of CdTe quantum dots. Enhanced
spectra are obtained after Ag SHINs were spread onto homogenous CdTe quantum dot/polyelectrolyte
layer-by-layer (LbL) ...
Luminescence Enhancement of Carboxyl-Coated CdTe Quantum Dots by Silver Nanoparticles
(2013-06-01)
Metallic nanoparticles (NPs) have been used to improve the sensibility of biosensors and bioassays either by enhancing radiative emission or inducing quenching process on fluorescent probes. The aim of this research was ...
Luminescence quantum efficiency at 1.5 μm of Er3+-doped tellurite glass determined by thermal lens spectroscopy
(2013-10-01)
Erbium doped tellurite glasses (TeO2 + Li2O + TiO2) were prepared by conventional melt-quenching method to study the influence of the Er3+ concentration on the luminescence quantum efficiency (η) at 1.5 μm. Absorption and ...
Luminescence quantum efficiency at 1.5 μm of Er3+-doped tellurite glass determined by thermal lens spectroscopy
(2013-10-01)
Erbium doped tellurite glasses (TeO2 + Li2O + TiO2) were prepared by conventional melt-quenching method to study the influence of the Er3+ concentration on the luminescence quantum efficiency (η) at 1.5 μm. Absorption and ...