黑料吃瓜网

Abstract: Full quantum-mechanical treatments of light-matter interaction result in a rich phenomenology of quantum entanglement that only in the last few decades we are starting to fully appreciate. For light scattering, the formation of collective entangled states on atomic ensembles is heralded by detection of photons spontaneously emitted by the sample. Its origin is the coherent interaction of atoms with the quantum reservoir of vacuum modes. In the last two decades, many groups have explored this process to devise applications in quantum information. Here I present the recent work of my group on the problem, exploring quantum correlations generated from simple systems, like ensembles of two- and three-level atoms. I particularly discuss the peculiar position of this problem on the backdrop of the broad discussion about the role of quantum entanglement in our macroscopic world. Finally, I review how these correlations may be used to build quantum networks and comment on the perspectives of this field in Brazil.

Bio: Daniel Felinto received his Ph.D. from the Federal University of Pernambuco (UFPE, Brazil). After postdoctoral positions at University of S茫o Paulo (Brazil) and Caltech (USA), he joined again UFPE in 2006 as a full professor. His research is focused on applications of optics and atomic physics to quantum information and technology, using techniques for cold atoms, ultrafast control, and quantum optics. He coordinates the Quantum Networks Laboratory at UFPE and is presently coordinating the projects to build a metropolitan quantum network in Recife and to install the Institute for Quantum Technology of UFPE.