148 citations · 859 across the 35 of their papers we have counts for
5 papers · 2 filters
Computable Measures for the Entanglement of Indistinguishable Particles
Fernando Iemini, Reinaldo O. Vianna
We discuss particle entanglement in systems of indistinguishable bosons and fermions, in finite Hilbert spaces, with focus on operational measures of quantum correlations. We show…
Witnessed entanglement and the geometric measure of quantum discord
Tiago Debarba, Thiago O. Maciel, Reinaldo O. Vianna
We establish relations between geometric quantum discord and entanglement quantifiers obtained by means of optimal witness operators. In particular, we prove a relation between neg…
Quantifying Quantum Correlations in Fermionic Systems using Witness Operators
Fernando Iemini, Thiago O. Maciel, Tiago Debarba +1
We present a method to quantify quantum correlations in arbitrary systems of indistinguishable fermions using witness operators. The method associates the problem of finding the op…
Quantum state of a free spin-1/2 particle and the inextricable dependence of spin and momentum under Lorentz transformations
Tiago Debarba, Reinaldo O. Vianna
We revise the Dirac equation for a free particle and investigate Lorentz transformations on spinors. We study how the spin quantization axis changes under Lorentz transformations,…
Experimental implementation of a NMR entanglement witness
J. G. Filgueiras, T. O. Maciel, R. E. Auccaise +3
Entanglement witnesses (EW) allow the detection of entanglement in a quantum system, from the measurement of some few observables. They do not require the complete determination of…