Dynamics of the entanglement in systems of identical bosons under decoherence

CÉSPEDES, PAULA; MAJTEY, ANA P.

Conferencia; VII CONFERENCE OF 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 featuresof quantum mechanics, and in recent years it has been the subject of intense researchactivity. The phenomenon of decoherence consists, basically, of a set of effectsarising from the interaction between quantum systems and their environments. Thedecoherence 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 identicalbosons interacting with an environment for two paradigmatic quantum channels.We quantify the entanglement between different parties of the system. A study ofthe dynamics of entanglement focusing in the emergence of genuine multipartiteentanglement for some particular examples is carried out.