This text is a comprehensive introduction to the main ideas and techniques of the field of quantum computation and quantum information. Until now, the rapid rate of progress and its cross-disciplinary nature have made it difficult for newcomers to the field to obtain a broad overview of the most important techniques and results. Michael Nielsen and Isaac Chuang ask the questio...(展开全部)

Earth Sound Earth Signal is a study of energies in aesthetics and the arts, from the birth of modern communications in the nineteenth century to the global transmissions of the present day. Grounded in the Aeolian sphere music that Henry David Thoreau heard blowing in telegraph lines and in the Aelectrosonic sounds of natural radio that Thomas Watson heard in telephone lines, t...(展开全部)

The long-awaited new novel by the award-winning, bestselling author of Startide Rising and The Uplift War--an epic novel set fifty years from tomorrow, a carefully-reasoned, scientifically faithful tale of the fate of our world. "One hell of a novel . . . has what sci-fi readers want these days; intelligence, action, and an epic scale".--Isaac Asimov's Science Fiction Magazine....(展开全部)

TIME IS RUNNING OUT Decades from now, an artificial black hole has fallen into the Earth's core. As scientists frantically work to prevent the ultimate disaster, they discover that the entire planet could be destroyed within a year. But while they look for an answer, some claim that the only way to save Earth is to let its human inhabitants become extinct: to reset the evolutio...(展开全部)

TIME IS RUNNING OUT Decades from now, an artificial black hole has fallen into the Earth's core. As scientists frantically work to prevent the ultimate disaster, they discover that the entire planet could be destroyed within a year. But while they look for an answer, some claim that the only way to save Earth is to let its human inhabitants become extinct: to reset the evolutio...(展开全部)

布鲁斯·罗森布鲁姆，美国加州大学圣克鲁斯分校物理系名誉教授，前系主任。 弗雷德·库特纳，美国加州大学圣克鲁斯分校物理系讲师。 向真，清华大学工程物理系副教授，翻译过第一推动丛《存在之轻》《不同的宇宙》《通向实在之路》《时空的大尺度结构》等。

在线阅读本书 Beginning students of quantum mechanics frequently experience difficulties separating essential underlying principles from the specific examples to which these principles have been historically applied. Nobel–Prize–winner Claude Cohen–Tannoudji and his colleagues have written this book to eliminate precisely these difficulties. Fourteen chapters provide a clarity of org...(展开全部)

This textbook on "Quantum Electrodynamics" is a thorough introductory text providing all necessary mathematical tools together with many examples and worked problems. In their presentation of the subject the authors adopt a heuristic approach based on the propagator formalism. The latter is introduced in the first two chapters in both its non relativistic and relativistic versi...(展开全部)

Quantum gravity is perhaps the most important open problem in fundamental physics. It is the problem of merging quantum mechanics and general relativity, the two great conceptual revolutions in the physics of the twentieth century. The loop and spinfoam approach, presented in this 2004 book, is one of the leading research programs in the field. The first part of the book discus...(展开全部)