The basis of synchronous manipulation of individual electrons in solid-state devices was laid
by the rise of single electronics about two decades ago,,. Ultrasmall structures in a low …

We investigate one-dimensional Josephson junction arrays with generalized unit cells as a
circuit approach to engineer microwave band gaps. An array described by a lattice with a …

The sine-Gordon model with a variable mass (VMSG) appears in many physical systems,
ranging from the current through a nonuniform Josephson junction to DNA-promoter …

We introduce a method where successive coordinate transformations are applied to
decrease the error in the adiabatic master equation resulting from truncation in the local …

We study electron transport through a hybrid single-electron transistor, consisting of a
superconducting island and normal-metal electrodes, in the Coulomb blockade regime. We …

Sine-Gordon deformed defects that exhibit unusual phenomenological features on the
topological charge are investigated. The possibility of a smooth and continuous transition …

We introduce and discuss a scheme for Cooper-pair pumping. The scheme relies on the
coherent transfer of a superposition of charge states across a superconducting island and is …

In adiabatic Cooper pair pumps, which are operated by means of gate voltage modulation
only, the quantization of the pumped charge during a cycle is limited due to the quantum …

Since the original paper from Josephson on tunnel phenomena occurring in
superconducting junctions (Josephson, 1962), superconductors have been widely studied …

This Thesis studies opportunities to create a quantum standard for the electric current with
the help of tunnel junctions. We use two types of tunnel junctions: superconducting …