About collapse and revivals of two quantum oscillators in off-resonance interaction

The off-resonance effect and its influence on the reversibility between two quantum subsystems in interaction (single mode cavity field and a three-level atom in cascade configuration) are studied. The partial restoration condition is found at which these radiators can restore their diagonal moments, while the non-diagonal ones remain correlated after the interaction process.     

The first coordination compound containing three different types of spin carriers: 2p-3d-4f (TCNQ.-, Cu2+ and Gd3+)

A novel heterospin system, [(CuL)2Gd(TCNQ)2].TCNQ-.CH3OH.2CH3CN, is obtained by reacting the mononuclear complex, [CuL], with gadolinium(III) nitrate, followed by the substitution of the nitrato ions with anionic organic radicals.     

Molecular hydrogen in a-si:H

It is demonstrated that in high quality hydrogenated amorphous silicon films nearly 40% of the contained hydrogen is in the form of hydrogen molecules individually trapped in the amorphous equivalent of tetragonal T sites. The majority of these molecular hydrogens are in the less-clustered component of the contained hydrogen. These results could have major implications for the understanding of light-induced defects and hydrogen mobility.     

X-ray spectroscopy at PSI

Crystal spectroscopy of the X-rays of exotic atoms started with a series of experiments using transmission spectrometers. Experiments at lower energies were made possible by the development of reflection spectroscopy. The progress made is illustrated with a measurement of the pion mass and the determination of strong interaction effects in pionic hydrogen isotopes. Modern developments aim at a determination of the strong interaction width on the level of %. The way to reach this goal is presented and the limits of the method and possible future experiments are discussed. This revised version was published online in August 2006 with corrections to the Cover Date.     

Stochastic integration with respect to a stochastic integral

In this paper we prove first the property of integration with respect to a measure defined by density,h(fm) = (hf)mor a measure mand functions f,h, taking values in Banach spaces. Then we use this result to prove the similar “associativity” property of the stochastic integralL.(K-X)= (LK) Xfor processes X,K,Ltaking values in Banach spaces     

Über die Einwirkung des alkoholischen Kalis auf den Isovaleraldehyd

Ohne ZusammenfassungIch nehme mit Freuden die Gelegenheit wahr, am Schlusse dieser Mittheilung meinem hochverehrten Lehrer, Herrn Hofrath Lieben, für das lebhafte Interesse, das er dieser Arbeit entgegenbrachte, und für die stete Förderung derselben mit Rath und That, meinen tiefgefühlten Dank auszusprechen.