BKAPQUCM.RVW 20070304 "Approaching Quantum Computing", Dan C. Marinescu/Gabriela M. Marinescu, 2005, 0-13-145224-X %A Dan C. Marinescu %A Gabriela M. Marinescu %C One Lake St., Upper Saddle River, NJ 07458 %D 2005 %G 0-13-145224-X %I Prentice Hall %O 800-576-3800 201-236-7139 fax: 201-236-7131 %O http://www.amazon.com/exec/obidos/ASIN/013145224X/robsladesinterne http://www.amazon.co.uk/exec/obidos/ASIN/013145224X/robsladesinte-21 %O http://www.amazon.ca/exec/obidos/ASIN/013145224X/robsladesin03-20 %O Audience a+ Tech 2 Writing 2 (see revfaq.htm for explanation) %P 386 p. %T "Approaching Quantum Computing" Chapter one introduces some of the basic concepts in quantum computation, using some of the physics behind both computing and quantum mechanics, and illustrating these ideas using experiments with photons. The basic mathematics behind quantum mechanics is outlined in chapter two. The second half of the chapter explains the experimental evidence for the dual particle/wave nature of photons leading to the requirements for theories of quantum physics, and the historical development of quantum theories in the first half of the twentieth century. Qubits are the data representation and processing units of quantum computer systems. Chapter three reviews the required characteristics for qubits, and notes a couple of physical entities that can be used for this purpose. Gates and circuits that can be created with quantum technologies are outlined in chapter four. Chapter five notes the possibility of a quantum Turing machine which may be more powerful than classical Turing machines. The material also examines various algorithms proposed for use with quantum computers. However, the possible limitations of quantum computing are noted: most quantum algorithms require dedicated (rather than general purpose) circuits, and quantum computing algorithms may be limited to a very select class of problems (a great many of the suggested algorithms are based on quantum Fourier transforms). Most of chapter six details historical examinations of quantum physics. The tidbits are fascinating, and have some bearing on quantum computing and communications, but are poorly related to the other content of the book. While an academic textbook, with a heavy emphasis on abstruse mathematics, this work could be heartily recommended to a great many people who *think* they know something about quantum computing. copyright Robert M. Slade, 2007 BKAPQUCM.RVW 20070304