Narrow Results

We present a brief review to our recent study concerning dynamic spin transport induced by AC-biased gate in low-dimensional semiconductor systems, in which dynamic spin-orbit interaction plays a crucial role. We construct a Boltzmann spin-transport model and a spin-drift-diffusion model to describe the time-dependent spin transport starting with the framework of Keldysh formalism. Methods for the generation and direct detection of spin current are proposed without optical and magnetic mediators.

Rare isotopes are most often studied through nuclear reactions. Nuclear reactions can be used to obtain detailed structure information but also in connection to astrophysics to determine specific capture rates. In order to extract the desired information it is crucial to have a reliable framework that describes the reaction process accurately. A few recent developments for transfer and breakup reactions will be presented. These include recent studies on the reliability of existing theories as well as effort to reduce the ambiguities in the predicted observables.

The following paper attempts to reconstruct the theory of physical operators as presented by a Polish physicist, L. Silberstein, and displaying consequences resulting from comparing such a depiction of operators with a depiction introduced to quantum mechanics by M. Born, N. Wiener, and H. Weyl. The article is to verify and give grounds to the argument presented by M. Jammer, that the theory of L. Silberstein is to some extent an anticipation of formal aspects of operational approach in contemporary quantum mechanics.