92 citations · 1.3k across the 98 of their papers we have counts for
5 papers · 1 filter
Quantifying the decay of quantum properties in single-mode states
L. A. M. Souza, M. C. Nemes, M. França Santos +1
The dissipative dynamics of Gaussian squeezed states (GSS) and coherent superposition states (CSS) are analytically obtained and compared. Time scales for sustaining different quan…
On the equivalence between Implicit Regularization and Constrained Differential Renormalization
Carlos R. Pontes, A. P. Baêta Scarpelli, Marcos Sampaio +2
Constrained Differential Renormalization (CDR) and the constrained version of Implicit Regularization (IR) are two regularization independent techniques that do not rely on dimensi…
Characteristic Time and Maximum Mixedness: Single Mode Gaussian States in Dissipative Channels
Leonardo A. M. Souza, M. C. Nemes
We derive an upper limit for the mixedness of single bosonic mode gaussian states propagating in dissipative channels. It is a function of the initial squeezing and temperature of…
An analytical relation between entropy production and quantum Lyapunov exponents for Gaussian bipartite systems
K. M. Fonseca Romero, J. E. Parreira, L. A. M. Souza +2
We study and compare the information loss of a large class of Gaussian bipartite systems. It includes the usual Caldeira-Leggett type model as well as Anosov models (parametric osc…
Strong enhancement of the persistent current by an embedded quantum dot
E. H. Martins Ferreira, M. C. Nemes, H. A. Weidenmueller
This paper has been withdrawn by the authors due to crucial error on assumption in Eq. 2. We cannot assume v_R and v_L to be equal or even have the same sign.