Closed form solution of Lindblad master equations without gain

We present a closed form solution to the eigenvalue problem of a class of master equations that describe open quantum system with loss and dephasing but without gain. The method relies on the existence of a conserved number of excitation in the Hamiltonian part and that none of the Lindblad operators describe an excitation of the system. In the absence of dephasing Lindblad operators, the eigensystem of the Liouville operator can be constructed from the eigenvalues and eigenvectors of the effective non-Hermitian Hamiltonian used in the quantum jump approach. Open versions of spin chains, the Tavis-Cummings model and coupled Harmonic oscillators without gain can be solved using this technique.Comment: 9 page

Quantum optical master equation for solid-state quantum emitters

We provide an elementary description of the dynamics of defect centers in crystals in terms of a quantum optical master equation which includes spontaneous decay and a simplified vibronic interaction with lattice phonons. We present the general solution of the dynamical equation by means of the eigensystem of the Liouville operator and exemplify the usage of this damping basis to calculate the dynamics of the electronic and vibrational degrees of freedom and to provide an analysis of the spectra of scattered light. The dynamics and spectral features are discussed with respect to the applicability for color centers, especially for negatively charged nitrogen-vacancy centers in diamond.Comment: 13 pages, 4 figure

Projecte d'urbanització del Carrer del Morrot de Can Clos i la Plaça de Dalt i als voltants del Barri de Can Clos, districte de Sants-Montjuïc

El present Projecte té la finalitat de urbanitzar de la Plaça de Dalt i el seu entorn i el carrer del Morrot, així com definir i valorar els obres necessàries per desenvolupar una part del barri de Can Clos. La decisió de desenvolupar aquests i no Altres, ve donat a que són espais que per les seves particularitats de degradació, permeten donar resposta a Els problemes mes Estructurals del barri (millora espai públic, vialitat, aparcament, sanejament ,...) com a model a seguir per a la resta del barri

Sistema de angiografías virtuales inmersivas (SAVI)

Ingeniero (a) de SistemasPregrad