Dynamics of the entanglement in systems of identical bosons under decoherence

P. CÉSPEDES; A. VALDÉS-HERNÁNDEZ; A.P. MAJTEY

Jornada; VII Conference on Quantum Foundations: 90 years of uncertainty; 2017

Entanglement and decoherence are two closely related phenomena that lie at the core of quantum physics. Entanglement is regarded as one of the most distinctive features of quantum mechanics, and in recent years it has been the subject of intense research activity. The phenomenon of decoherence consists, basically, of a set of effects arising from the interaction between quantum systems and their environments. The decoherence process leads the system from a pure state to a (usually less entangled) mixed state. Here we study the entanglement evolution in a systems of two identical bosons interacting with an environment for two paradigmatic quantum channels. We quantify the entanglement between different parties of the system. A study of the dynamics of entanglement focusing in the emergence of genuine multipartite entanglement for some particular examples is carried out.