Lloyd completed his PhD in 1989 at the University of Melbourne in theoretical particle physics. In 1990 he was awarded a JSPS Fellowship and began postdoctoral work in the theoretical physics group at the KEK accelerator laboratory in Tsukuba, Japan. After his postdoctoral period he returned to the School of Physics where he is now Associate Professor and Reader. In the interim, he has spent extended periods working at the Max Planck Institute for Nuclear Physics, Heidelberg (1999), and the Ludwig Maximilians University, Munich, (2005), sponsored by the Alexander von Humboldt Foundation. A long standing interest in quantum many body systems, was a natural starting point for research in quantum computing and communication applications. In 2000 Lloyd joined the Centre of Excellence for Quantum Computer Technology, and was appointed Manager of the Device Modelling Program in 2001. This program now comprises 12 research students and 3 postdoctoral researchers. He is also a member of the Australian Research Council College of Experts. As one of the Chief Investigators of the original QCV - STI application, Lloyd now plays a major senior role within the QCV as Technical Director overseeing all theoretical work in photonics and solidstate physics, as well as overseeing the QCV Altix High Performance Computing facility.