Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 5 of 5 for “"Tunneleffekt"”.
-
Herstellung und Untersuchung metallischer Einzel-Elektronen-Transistoren
Single-electron transistors (SETs) are quantum devices and are based on the controlling of the Coulomb blockade. They are the ultimate development of low-power devices with an extreme high potential of integration. Their dominant purpose is seen in future memory devices. Usually the key element of …
-
Quantum breathers in small networks: Dynamics, tunneling, correlations, and application to Josephson cells
We address the excitation of quantum breathers in small nonlinear networks of two and three degrees of freedom, in order to study their properties. The invariance under permutation of two sites of these networks substitutes the translation invariance that is present in nonlinear lattices, where …
-
Semiclassical spectral analysis of discrete Witten Laplacians
A discrete analogue of the Witten Laplacian on the n-dimensional integer lattice is considered. After rescaling of the operator and the lattice size we analyze the tunnel effect between different wells, providing sharp asymptotics of the low-lying spectrum. Our proof, inspired by work of B. …
-
Optical and electrical addressing in molecule based logic circuits
By using state of the art industrial production methods it is possible to fabricate device geometries with lateral dimensions of 22 nm. A further reduction of these components is accompanied by a fundamental change of electronic properties, if a certain threshold is overcome.Organic molecules …