The goals of the 1st Asia-Pacific Conference on Quantum Information Science, which are embodied in this volume, were to promote and strengthen the interactions and exchange of knowledge among researchers of the Asia-Pacific region in the rapidly advancing field of quantum information science. The volume contains many leading researchers' latest experimental and theoretical findings, which together constitute a valuable contribution to this fascinating area.Contents:Realistic Simulations of Single-Spin Measurement via Magnetic Resonance Force Microscopy (T A Brun & H-S Goan)Continuous Variable Teleportation of Quantum Fields (H J Carmichael)Silicon-Based Nuclear Spin Quantum Computer (H-S Goan)Robust Dynamical Decoupling: Feedback-Free Error Correction (D A Lidar & K Khodjasteh)A Bell Inequality Based on Correlation Functions for Three Qubits (C-F Wu et al.)Minimum-Error Discrimination among Mixed Quantum States (C-L Chou)Security of Quantum Key Distribution with Strong Phase-Reference Pulse (M Koashi)Limitation on the Accessible Information for Quantum Channels with Inefficient Measurements (K Jacobs)Codes for Key Generation in Quantum Cryptography (B-G Englert et al.)W State Generation and Effect of Cavity Photons on the Purification of Dot-Like Single Quantum Well Excitons (C-M Li et al.)A Universal Quantum Estimator (L C Kwek et al.)Towards a Practical Environment for Quantum Programming (S Yamashita et al.)Decoy State Quantum Key Distribution (Abstract Only) (H-K Lo)Mixed-State Entanglement in the Light of Pure-State Entanglement Constrained by Superselection Rules (S D Bartlett et al.)Quantum Computation Based on Electron Spin Qubits without Spin-Spin Interaction (Y-Z Wu et al.)Infrared Wavelength Quantum Communications Based on Single Electron Transistors (D M T Kuo)Recent Results in Experiments with Josephson Qubits (O Astafiev et al.)Pulsed Endor-Based Quantum Information Processing (R Rahimi et al.)Utilization of Polarized Electron Spin of Organic Molecules in Quantum Computing (T-S Lin et al.)Quantum System Identification (L-Y Hsu)Organic Semiconductor Micro-Pillar Processed by Focused Ion Beam Milling (W-C Hung et al.)Optimal Design of Single-Photon Source Emission from a Quantum-Dot in Micro-Pillar Microcavity (Y-L D Ho et al.)Readership: Physicists, researchers and postgraduates working in quantum information science and quantum computation.