Quantum Computer

Quantum information science is a new field of science andtechnology which requires the collaboration of researchers coming fromdifferent fields of physics, mathematics, and engineering: boththeoretical and applied. "Quantum Computing and Quantum Bits inMesoscopic Systems" addresses fundamental aspects of quantumphysics, enhancing the connection between the quantum behavior ofmacroscopic systems and information theory. In addition to theoreticalquantum physics, the book comprehensively explores practicalimplementation of quantum computing and information processingdevices.On the experimental side, this book reports on recent and previousobservations of quantum behavior in several physical systems, coherently coupled Bose-Einstein condensates, quantum dots, superconducting quantum interference devices, Cooper pair boxes, andelectron pumps in the context of the Josephson effect. In thesesystems, the book discusses all required steps, from fabricationthrough characterization to the final basic implementation for quantumcomputing.On the theoretical side, "Quantum Computing and Quantum Bits in""Mesoscopic Systems" provides models of the various mesostructuresand of their response to external control signals, addressing thethorny problem of minimizing decoherence. Indeed, the book presents animproved understanding of the formal theory of quantum informationencoding and manipulation.Topics include: Quantum Computing, Quantum Phenomena inSuperconducting Devices (phase- and charge-space), Nanodevices, Dissipation and Docoherence in Mesoscopic Systems, and MacroscopicQuantum Coherence in Physical Systems, including: NMR, Quantum Dots, Ions, Magnetic Systems, and Bose-Einstein Condensation.

Quantum computing, the reduction of computing elements to sizes far smaller than that of present-day chips, down to the size of individual atoms, presents new problems, problems on the quantum level. But thanks to new discoveries by Gerard Milburn and other cutting-edge scientists, quantum computing is about to become a reality. In this book, the first one for the general public to explain the scientific ideas behind concepts seen before only in science fiction, physicist Milburn brings us the exciting world of phenomena of entanglement, where particles can be in two places at the same time, where matter on the quantum level can be teleported a la Star Trek's famous Transporter; and where cryptographers can construct fundamentally unbreakable computer codes. Although other books and magazine articles have dealt with some of the subjects in this book, this is the first book for the layman to deal specifically with quantum computing, an area pioneered by the great physicist Richard Feynman, who first posed the challenge to scientists to devise the smallest, fastest computer elements, to take us to the absolute physical limits of computers. This book promises to both astound and educate every reader eager to keep abreast of the latest breakthroughs in physics and computers.

Kane quantum computer - The Kane quantum computer is a proposal for a scalable quantum computer proposed by Bruce Kane in 19981, then at the University of New South Wales. Often thought of as a hybrid between quantum dot and NMR quantum computers, the Kane computer is based on an array of individual phosphorus donor atoms embedded in a pure silicon lattice.

Quantum computer - A quantum computer is any device for computation that makes direct use of distinctively quantum mechanical phenomena, such as superposition and entanglement, to perform operations on data. In a classical (or conventional) computer, the amount of data is measured by bits; in a quantum computer, it is measured by qubits.

Universal quantum computer - In quantum mechanics, the universal quantum computer or universal quantum Turing machine (UQTM) is a theoretical machine that combines both Church-Turing and quantum principles.

Quantum virtual machine - A Quantum Virtual Machine (QVM) is a virtual machine which emulates a quantum computer. It provides a structure for a quantum register (the memory of a quantum computer) and operations for the manipulation of a quantum register.

quantumcomputer

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'Quantum Computers' - 'Quantum Computers' Quantum Approach To Informatics An essential overview of quantum information Information, whether inscribed as a mark on a stone tablet or encoded as a magnetic domain on a hard drive, must be stored in a physical object 'quantum computers' and thus made subject to the laws of physics. Traditionally, information processing such as computation occurred in a framework governed by laws of classical physics. However, information can also be stored 'quantum computers' and processed using the states of ...

'Quantum Computing' - 'Quantum Computing' Quantum Approach To Informatics An essential overview of quantum information Information, whether inscribed as a mark on a stone tablet or encoded as a magnetic domain on a hard drive, must be stored in a physical object 'quantum computing' and thus made subject to the laws of physics. Traditionally, information processing such as computation occurred in a framework governed by laws of classical physics. However, information can also be stored 'quantum computing' and processed using the states of ...

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