PEP Seminar Series Wednesday, September 10th, 2:30 PM, Babbio 210 Christopher Monroe Joint Quantum Institute University of Maryland and NIST Trapped atomic ions are among the most promising candidates for a future quantum information processor, with each ion storing a single quantum bit (qubit) of information. All of the fundamental quantum operations have been demonstrated on this system, and the central challenge now is how to scale the system to larger numbers of qubits. The conventional approach to forming entangled states of multiple trapped ion qubits is through the local Coulomb interaction accompanied by appropriate state-dependent optical forces. Recently, trapped ion qubits have been entangled through a photonic coupling, allowing qubit memories to be entangled over remote distances. This coupling may allow the generation of truly large-scale entangled quantum states, and also impact the development of quantum repeater circuits for the communication of quantum information over geographic distances. I will discuss several options and issues for such atomic quantum networks, along with state-of-the-art experimental progress. Chris Monroe obtained his PhD at the University of Colorado at Boulder in 1992 under Carl Weiman. He worked as a Postdoctoral Researcher at the National Institute of Standard and Technology at Boulder with David Wineland. He was a Professor at the University of Michigan at the Department of Physics (2003- 2007) and at the Department of Electrical Engineering and Computer Science (2006-2007). He was the Director of FOCUS Center (an NSF Physics Frontier Center) at Michigan (2006-2007). He is a fellow of APS, the Institute of Physics (UK), and also at Joint Quantum Institute at the University of Maryland. He received the International Quantum Communication Award in 2000, the American Physical Society “I.I. Rabi Award” in 2001, and the Scientific American “50” Research Award in 2006. This talk is sponsored by the PEP department Pizza and soda will be served at 2:00PM For more information please contact Prof. Svetlana Malinovskaya ([email protected]), Prof. Ting Yu ([email protected]), Vishesha Patel ([email protected]), Brittany Corn ([email protected]).