Title: Putting quantum correlations to work: unleashing the power of hidden order and emergent phenomena for quantum information processing Speaker: Gavin Brennen, Associate Professor, Macquarie University, Sydney, Australia Date/Time: Monday, December 13, 2010, 9:30 am Mountain Time Location: CSRI Building/Room 90 (Sandia NM) Brief Abstract: The physics of strongly correlated systems such as quantum spin lattices has provided tremendous insight into the way matter can be organized. This is understood through the identification of phases of matter using scaling laws and emergent properties, such as quasiparticles, that aren't identifiable at the microscopic level but arise in low energy collective states. In the past decade there has been a new research direction to use such states of matter as error resilient hardware for quantum information processing. I will describe some recent work involving using edge modes of gapped spin lattices for measurement based quantum computing and how renormalization can be used as a physical mechanism to improve the process. I will also describe how one could hope to engineer spin lattices with topological order and some new phenomena that could be explored by coherent control of emergent anyons in those systems. BIO: Gavin Brennen completed his PhD in theoretical physics at UNM under the supervision of Prof. Ivan Deutsch. He held a 3 year post-doc fellowship through the University of Maryland working in the atomic physics division at NIST, Gaithersburg. Following that he joined the group of Prof. Peter Zoller for 2 years working as a Senior Scientist for the Austrian Academy of Sciences. Since 2007 he holds the appointment of Assoc. Prof. in Physics at Macquarie University, Sydney Australia. His research interests are quantum information, coherent control, atomic physics, and topologically ordered systems.CSRI POC: Mark D. Rintoul, 505-844-9592 |