CDS Distinguished Lecture: Christopher Monroe, "Quantum Information Science"

Wednesday, October 28, 2009
5:00 p.m.
1115 Computer Science Instructional Center (CSIC)
Pamela White
301 405 6576
pwhite@umd.edu

Control and Dynamical Systems Distinguished Lecture
Quantum Information Science

Christopher Monroe
Bice Zorn Professor
Department of Physics
University of Maryland

Host
P.S. Krishnaprasad

Special note
A reception will preceed the lecture at 4:30 in the lobby of the CSIC Building.

Abstract
The twentieth century is commonly described as the information era, with the development of the digital computer following Turing's and Shannon's formal definitions of universal computation and information. Information technology soon followed, from vacuum tubes to solid state electronics and today's VLSI circuits.

But there was another scientific revolution in the 20th century: quantum mechanics. This field emerged as an essential model of the behavior of atomic and subatomic matter, but it entailed radical foundations, such as inherent uncertainty and the essential role of the observer in quantum measurement. These strange features were largely treated as curiosities in much of the 20th century, and most scientists simply ignored them (with Einstein a notable exception).

Now at the dawn of the 21st century, we are seeing a second quantum revolution, as quantum mechanics is being combined with information theory in the new field of quantum information science. But now, the bizarre features of quantum mechanics -- uncertainty, entanglement, and measurement -- are embraced in order to perform tasks that are impossible using conventional computers and potentially transform how we process and store information.

This lecture will survey the new discipline of quantum information science, describing how it has shaped our view of quantum foundations, listing its potential applications and limitations, and summarizing state-of-the-art quantum hardware.

Biography
Christopher Monroe is an experimental physicist in the realm of atomic, molecular and optical physics. After getting his undergraduate degree from MIT in 1987, Monroe joined Carl Wieman's research group at the University of Colorado in the early days of laser cooling. With Wieman postdoc Eric Cornell, Monroe contributed in the plotting of the path to cooling a cloud of atoms to the Bose-Einstein condensation transition; Monroe obtained his PhD under Wieman in 1992. (Wieman and Cornell succeeded in their quest for BEC in 1995, and were awarded the Nobel Prize for this work in 2001.) From 1992-2000, Monroe joined the Ion Storage Group of David Wineland at the National Institute of Standards and Technology in Boulder, CO, where he was awarded a National Research Council postdoctoral fellowship from 1992-1994, and was hired as a staff physicist in the same group from 1994-2000.

With Wineland, Monroe led the research team that demonstrated the first quantum logic gate in 1995, and exploited the use of trapped atomic ions for applications in quantum control and the new field of quantum information science. Monroe was awarded the 1997 Presidential Early Career Award for Scientists and Engineers and the 2000 International Award for Quantum Communications. In 2000, Monroe started a research group at the University of Michigan, where he spearheaded the use of single photons to couple quantum information between atomic ions. There he also demonstrated the first ion trap integrated on a semiconductor chip.

He was awarded the I. I. Rabi Prize of the American Physics Society in 2001 for his work with trapped ions. In 2006, Monroe became Director of the FOCUS Center at the University of Michigan, a NSF Physics Frontier Center in the area of ultrafast optical science.

In 2007, Monroe became the Bice Zorn Professor of Physics at the University of Maryland and a Fellow of the Joint Quantum Institute between Maryland and NIST. In 2007-2008, Monroe's group succeeded in producing quantum entanglement between two widely separated atoms, and for the first time, they teleported quantum information between atoms separated by a large distance. Monroe's general scientific interests include quantum optics, cold atomic physics, quantum information science, the interface between atomic and solid state physics, and fundamental issues in quantum physics.

Audience: Clark School  Graduate  Faculty  Post-Docs  Alumni 

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