The volume presents reports of the latest developments in the experimental implementation of quantum computer proposals worldwide. It also includes theoretical investigations relevant to the various computer architectures, implementation strategies and computer operation. The reports provide a framework that sets out both the challenges of the various experimental proposals together with progress that has been made in overcoming these challenges.

David Awschalom (UCSB) Hans Bachor (Australian National University) Crispin Barnes (University of Cambridge) Rainer Blatt (University of Innsbruck) Sam Braunstein (University of Wales) Isaac Chuang (IBM Almaden) Ivan Deutsch (University of New Mexico) David DiVincenzo (IBM T.J. Watson) Jon Dowling (Caltech) Mark Dykman (Michigan State University) Andrew Dzurak (University of New South Wales) Chris Hammel (Los Alamos National Laboratory) Yoshiro Hirayama (NTT Basic Research Laboratories) Xuedong Hu (University of Maryland) Bill Huber (NIST) Richard Hughes (Los Alamos National Laboratory)

Poul Jessen (University of Arizona) David Kielpinski (NIST) Tom King (UCSB) Paul Kwiat (Los Alamos National Laboratory) Daniel Loss (University of Basel) Hideo Mabuchi (California Institute of Technology) Gerard Milburn (University of Queensland) Don Parkin (Los Alamos National Laboratory) Keith Schwab (Maryland) Selim Shahriar (MIT) David Lucas (University of Oxford) Yasuo Takahashi (NTT Basic Research Laboratories) Jaw-shen Tsai (NEC Fundamental Research) John Tucker (University of Illinois) Birgitta Whaley (UC Berkeley) Kang Wang (UCLA) Stan Williams (Hewlett Packard Laboratories, Palo Alto) Yoshi Yamamoto (Stanford University)