17 December 2007 ICFO congratulates a new PhD graduate

Dr. Navascués during his thesis dissertation

Thesis Committee

Dr. Miguel Navascués obtained his Doctoral Degree with a project on quantum information theory supervised by Prof. Antonio Acín. Dr. Miguel Navascués got a Physics degree from the Universidad Complutense de Madrid in 2003. Since 2003 he has been working in the fields of quantum optics and quantum information theory in Acín’s group at ICFO.

Miguel Navascués’ dissertation (“Quantum information in infinite dimensional Hilbert spaces”) studies the possibilities and limitations offered by infinite dimensional Hilbert spaces to perform quantum information tasks.

Quantum Information Theory is an emerging field that aims to use the particular features of Quantum Mechanics to perform communication protocols whose realization would be impossible in a classical world. Among its main applications, one could cite quantum cryptography, teleportation and dense coding. Most of these protocols were initially conceived to be implemented in discrete systems. Unfortunately, the control and manipulation of these systems is still a challenge. On the other hand, Quantum Optics is a well established discipline: linear optical elements, together with optical parametric amplifiers and photodetectors allow to implement a wide range of operations with high precision in infinite dimensional quantum systems. Miguel’s research project explores the applications of infinite dimensional Hilbert spaces to quantum information tasks from a theoretical point of view, but with immediate applications in the calibration of optical devices.