This book constitutes the thoroughly refereed post-conference proceedings of the 6th Conference on Theory of Quantum Computation, Communication, and Cryptography, TQC 2011, held in Madrid, Spain, in May 2011. The 14 revised papers presented were carefully selected from numerous submissions. The papers present new and original research and cover a large range of topics in quantum computation, communication and cryptography, a new and interdisciplinary field at the intersection of computer science, information theory and quantum mechanics.

This book will appeal to anyone who has ever been drawn to the water and wondered about what it would be like to experience the personal freedom of being their own skipper on a small sailboat. If you're already sailing a small boat such as a Potter 15, but want to improve your skills and expand your horizons, you'll find this book quite helpful. The Gentle Art of Pottering will guide you through finding a boat, day sailing, cruising, and racing which are the major activities that sailors do. The subjects covered are extensive and detailed, but explained in the simplest of terms. The author, Mr. Bacon, has been sailing his Potter 15 for ten years. He has cruised his boat throughout the Pacific Northwest and raced successfully at both the Cruiser Challenge and Sail Havasu events. Mr. Bacon has been sailing small boats for over fifty years and resides in the SanFrancisco Bay Area.