Research Fellows Directory
Professor Jeremy O'Brien
University of Bristol
Integrated circuits based on classical physics have delivered continual increases in information processing capacity over the past half century. It is through gradual miniaturisation that this technology has brought continued increases in capacity. This miniaturisation has reached so far that it is now possible to count the number of atoms across the smallest feature of a semi- conductor transistor. At this scale, quantum mechanical effects are beginning to perturb the operation of the transistor, and thus the demand for higher performance is approaching the limits of classical physics. Parallel to these gains is the heavy reliance on the transmission of sensitive information over the Internet by individuals, governments and key industries; improving current methods of securing this transmission is a major issue for all of these groups.
Quantum technologies promise a revolution in information and communication technologies. Bristol’s Centre for Quantum Photonics has made the crucial step of developing photonic integrated circuits for these technologies, and is now poised to apply this development in new devices with the goal of taking them out of the research lab.