In this revised and expanded edition, in addition to a comprehensible introduction to the
theoretical foundations of quantum tunneling based on different methods of formulating and …

'Der Kopf, so gesehen, hat mit dem Kopf, so gesehen, auch nicht die leiseste Ahnlichkeit (...)
Der Aspektwechsel.“Du würdest doch sagen, dass sich das Bild jetzt gänzlich geändert hat!” …

WKB wave functions are expected to be accurate approximations of exact quantum
mechanical wave functions mainly near the semiclassical limit of the quantum mechanical …

Hydrogen bonds are of outstanding importance for many processes in Chemistry, Biology,
and Physics. From the theoretical perspective the small mass of the proton in a hydrogen …

We extend our earlier work [1] on probing a gravitational cat state (gravcat) to the quantum
superposition of two gravcats in an exemplary model and in Bose–Einstein condensates …

We compute the decoherence caused by 1∕ f fluctuations at low frequency f in the critical
current I 0 of Josephson junctions incorporated into flux, phase, charge, and hybrid flux …

Supersymmetry, strings and branes are believed to be the essential ingredients in a single
unified consistent theory of physics. This book gives a detailed, step-by-step introduction to …

The double-well potential is arguably one of the most important potentials in quantum
mechanics, because the solution contains the notion of a state as a linear superposition …

A bstract We follow up the work, where in light of the Picard-Lefschetz thimble approach, we
split up the real-time path integral into two parts: the initial density matrix part which can be …

We study the breaking of the discrete time-translation symmetry in small periodically driven
quantum systems. These systems are intermediate between large closed systems and small …