Dagmar Bruß Livres

Quantum Information Processing is a young and rapidly growing field of research at the intersection of physics, mathematics, and computer science. Its ultimate goal is to harness quantum physics to conceive -- and ultimately build -- "quantum" computers that would dramatically overtake the capabilities of today's "classical" computers. One example of the power of a quantum computer is its ability to efficiently find the prime factors of a larger integer, thus shaking the supposedly secure foundations of standard encryption schemes.This comprehensive textbook on the rapidly advancing field introduces readers to the fundamental concepts of information theory and quantum entanglement, taking into account the current state of research and development. It thus covers all current concepts in quantum computing, both theoretical and experimental, before moving on to the latest implementations of quantum computing and communication protocols. With its series of exercises, this is ideal reading for students and lecturers in physics and informatics, as well as experimental and theoretical physicists, and physicists in industry.

Quantum information processing, a vibrant field of research at the intersection of physics, mathematics and computer science, has seen tremendous progress over the last couple of years, both with respect to the experimental realization of stable qubits (the quantum analog to bits in conventional computing) and the fundamental understanding, development and implementation of quantum-based algorithms. Consequently, proof-of-concept studies have unambiguously shown that quantum computers are possible and have the potential to dramatically exceed the capabilities of today's conventional computers. This comprehensive handbook on the rapidly advancing field presents the foundations of quantum information, taking into account the current state of research and development, and the emerging and already realized applications in quantum technology. It thus covers all current concepts in quantum computing, both theoretical and experimental, before moving on to the latest implementations of quantum computing and communication protocols. It is a must-have for experimental and theoretical physicists in academia and industry as well as for materials scientists, engineers and computer scientists who work in the field of quantum information.

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Ein Denken in Kategorien von Abstammung und Patriarchat begleitet unsere westliche Kultur seit der Antike. Einen weiteren Akzent in diese Richtung erhält es um die Jahrhundertwende durch die Freud’sche Psychoanalyse, wobei es mit dem Ödipuskomplex zugleich im Inneren der Kernfamilie anlangt. Dementgegen wird mit der vorliegenden Studie der bisher weitgehend verdeckte Blick in das Gelände jenseits der genealogisch-vertikalen Verzweigungen geworfen. Diese sogenannte horizontale Beziehungsdimension wird dabei sowohl in systematischer als auch in kulturhistorischer Perspektive erkundet. Ihr Radius berührt neben der kollateralen Verwandtschaft (Geschwister, Cousins) Konzepte von Freundschaft, die Figur des Fremden sowie unterschiedliche Vorstellungen von Nation. Anhand der Autoren Giovanni Verga und Robert Walser wird die Virulenz horizontaler Beziehungen für Phänomene um das Jahr 1900 am Übergang von euphorisierenden Brüderlichkeitsdiskursen zur modernen Massengesellschaft nachgezeichnet.