(57) ABSTRACT A Superconducting qubit is presented. The qubit is a shaped long
Josephson junction with a magnetic fluxon Such that, in the presence of an externally …

We elaborate a theoretical description of large Josephson junctions which is based on
Werthamer's microscopic tunneling theory. The model naturally incorporates coupling of …

We introduce an exponentially tapered Josephson flux-flow oscillator that is tuned by
applying a bias current to the larger end of the junction. Numerical and analytical studies …

A method for inserting fluxons into an annular Josephson junction is disclosed. Fluxon
injection according to the present invention is based on local current injection into one of the …

We consider effectively one-dimensional planar and radial kinks in two-dimensional
nonlinear Klein-Gordon models and focus on the sine-Gordon model and the ϕ 4 variants …

The dependence of the first critical field of long linear and annular Josephson junctions on
the width of the surrounding stripline, the so called idle region, is investigated …

Within this book fabrication processes for high-quality Josephson junctions based on
niobium and aluminum oxide as well as niobium nitride and aluminum nitride on various …

Since the very first experimental realization of a Josephson flux-flow oscillator (FFO), its
theoretical description has been limited by the phenomenological perturbed sine-Gordon …

We present all the possible solutions of a Josephson junction with bias current and magnetic
field with both inline and overlap geometry, and examine their stability. We follow the …

We show that the maximum tunneling current for a long thin window Josephson junction in
the presence of an external magnetic field is given to a good approximation by the solution …