Der Zar und die Revolution.

At head of title: Dmitri Mereschkowski. Zinaida Hippius. Dmitri Philosophoff.

Die Schriften Hartmuths von Cronberg [1521-1525]

I. Sendbrief an Kaiser Karl v. (1521)--II. Sendbrief an Franz v. Sickingen (1521)--III. Sendbrief an Walther von Cronberg (1521)--IV. Drei (vier) christliche Schriften: A. An Papst Leo X. (1521) B. An die Einwohner von Cronberg (1522) C. An die Bettelorden (1522) D. An Jakob Köbel in Oppenheim (1522)--V. Antwort auf Luthers Missive und die Bestallung. (1522)--VI. Statuten der Himmlischen (Cronbergischen) brüderschaft (1522)--VII. Die schriftstücke aus Cronbergs streit mit Peter Meyer (1522)--VIII. Treue vermahnung an alle stände und gesandten auf dem Reichstag zu Nürnberg (1522)--IX. Vermahnung an die Eldgenossen (1522)--X. An meister und rat zu Strassburg (1523)--XI. Sendbrief an Hadrian VI. (1523)--XII. Sendbrief an die Böhmen (1523)--XIII. Christliche schrift und vermahnung an alle stände (1523)--XIV. Persönliches vorbringen vor dem kaiserlichen regiment zu Nürnberg (1523)--XV. Ernstliche schrift an alle stände (1524)--XVI. Sendbrief an Spalatin (1525).

Ereignisse und Gestalten aus den Jahren 1878-1918.

At head of title: Kaiser Wilhelm II.

Rom; die Menchen des Barock;

"Achtes bis zehntes tausend."

Wspomnienia jenerała Klemensa Kołaczkowskiego.

"Z siedmiu rycinami w tekście."

Long distance coupling of a quantum mechanical oscillator to the internal states of an atomic ensemble

We propose and investigate a hybrid optomechanical system consisting of a micro-mechanical oscillator coupled to the internal states of a distant ensemble of atoms. The interaction between the systems is mediated by a light field which allows the coupling of the two systems in a modular way over long distances. Coupling to internal degrees of freedom of atoms opens up the possibility to employ high-frequency mechanical resonators in the MHz to GHz regime, such as optomechanical crystal structures, and to benefit from the rich toolbox of quantum control over internal atomic states. Previous schemes involving atomic motional states are rather limited in both of these aspects. We derive a full quantum model for the effective coupling including the main sources of decoherence. As an application we show that sympathetic ground-state cooling and strong coupling between the two systems is possible.

Exciton-mediated photothermal cooling in GaAs membranes

Cooling of the mechanical motion of a GaAs nano-membrane using the photothermal effect mediated by excitons was recently demonstrated by some of the authors (Usami et al 2012 Nature Phys. 8 168) and provides a clear example of the use of thermal forces to cool down mechanical motion. Here, we report on a single-free-parameter theoretical model to explain the results of this experiment which matches the experimental data remarkably well.