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Read-Out and Coherent Manipulation of an Isolated Nuclear Spin - Using a Single-Molecule Magnet Spin-Transistor (Hardcover, 1st... Read-Out and Coherent Manipulation of an Isolated Nuclear Spin - Using a Single-Molecule Magnet Spin-Transistor (Hardcover, 1st ed. 2016)
Stefan Thiele
R3,539 Discovery Miles 35 390 Ships in 12 - 17 working days

This thesis sheds new light on the worldwide first electrical manipulation of a single nuclear spin. Over the last four decades, the size of a bit, the smallest logical unit in a computer, has decreased by more than two orders of magnitude and will soon reach a limit where quantum phenomena become important. Inspired by the power of quantum mechanics, researchers have already identified pure quantum systems, having, analog to a classical bit, two controllable and readable states. In this regard, the inherent spin of electrons or nuclei with its two eigenstates, spin up and spin down, is a promising candidate. Using expertise in the field of single-molecule magnets, the author developed a molecular transistor, which allows quantum information to be written onto a single nuclear spin by means of an electric field only, and, in addition, enables the electronic read-out of this quantum state. This novel approach opens a path to addressing and manipulating individual nuclear spins within a very confined space (a single molecule), at high speed. Thus, the author was able to show that single molecule magnets are promising candidates for quantum information processing, which is triggering a new field of research towards molecular quantum electronics.

Read-Out and Coherent Manipulation of an Isolated Nuclear Spin - Using a Single-Molecule Magnet Spin-Transistor (Paperback,... Read-Out and Coherent Manipulation of an Isolated Nuclear Spin - Using a Single-Molecule Magnet Spin-Transistor (Paperback, Softcover reprint of the original 1st ed. 2016)
Stefan Thiele
R3,020 Discovery Miles 30 200 Ships in 10 - 15 working days

This thesis sheds new light on the worldwide first electrical manipulation of a single nuclear spin. Over the last four decades, the size of a bit, the smallest logical unit in a computer, has decreased by more than two orders of magnitude and will soon reach a limit where quantum phenomena become important. Inspired by the power of quantum mechanics, researchers have already identified pure quantum systems, having, analog to a classical bit, two controllable and readable states. In this regard, the inherent spin of electrons or nuclei with its two eigenstates, spin up and spin down, is a promising candidate. Using expertise in the field of single-molecule magnets, the author developed a molecular transistor, which allows quantum information to be written onto a single nuclear spin by means of an electric field only, and, in addition, enables the electronic read-out of this quantum state. This novel approach opens a path to addressing and manipulating individual nuclear spins within a very confined space (a single molecule), at high speed. Thus, the author was able to show that single molecule magnets are promising candidates for quantum information processing, which is triggering a new field of research towards molecular quantum electronics.

Sachsische Landkirchen zwischen Barock und Historismus; Die Kirchenbauten von Christian Friedrich Uhlig (1774-1848) (German,... Sachsische Landkirchen zwischen Barock und Historismus; Die Kirchenbauten von Christian Friedrich Uhlig (1774-1848) (German, Paperback)
Stefan Thiele
R1,107 Discovery Miles 11 070 Ships in 12 - 17 working days

Im Gegensatz zu den professionellen sachsischen Architekten des 18. und 19. Jahrhunderts finden die zahlreichen landlichen Handwerksmeister nur wenig Beachtung. Dabei haben gerade diese entscheidenden Anteil an der Weiterfuhrung der protestantischen Gemeindekirche bis etwa 1860. Der bedeutendste unter ihnen ist der Zimmermeister Christian Friedrich Uhlig aus Altenhain bei Chemnitz. Nach seinen Planen wurden zwischen 1820 und 1850 im Erzgebirge und seinem Vorland insgesamt 12 Kirchen errichtet. Konzeptionell stehen sie mit umlaufenden Emporen und Kanzelaltar in der Tradition der barocken Predigtkirche; architekturgeschichtlich spannen sie den Bogen vom Barock uber klassizistische Elemente hin zu historisierenden Formen. Die Untersuchung widmet sich neben Leben und Werk Christian Friedrich Uhligs, vor allem der eingehenden Beschreibung seiner Sakralbauten und ihres architektur- und kirchengeschichtlichen Kontextes. Dabei wird versucht, das Charakteristische an Uhligs Handschrift herauszuarbeiten und seinen gewichtigen Beitrag zum sachsischen Kirchenbau im 19. Jahrhundert wieder starker ins Bewusstsein zu rucken.

Automatisierung des Biegerichtens (German, Paperback): Stefan Thiel Automatisierung des Biegerichtens (German, Paperback)
Stefan Thiel
R2,330 Discovery Miles 23 300 Ships in 10 - 15 working days

In diesem Band wird die Automatisierung des Biegeprozesses in rechnergesteuerten Richtmaschinen grundlegend behandelt. Fur die Beherrschung der beiden Grundprobleme (Ruckfederung und gegenseitige Abhangigkeit mehrerer Richtstellen) werden verschiedene neue Verfahren vom theoretischen Ansatz bis zum praktisch einsetzbaren Algorithmus entwickelt. Ziel dieser Verfahren ist, die Qualitat der gerichteten Werkstucke und die Produktivitat der Richtmaschine gemeinsam zu steigern. Der Qualitatsaspekt wird durch die Untersuchung von Verfahren zur Erkennung der Entstehung von Rissen wahrend des Biegens berucksichtigt. Zu den entwickelten Verfahren werden in praktischen Versuchen gewonnene Ergebnisse aufgefuhrt.

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