The major task of detecting axions or axion-like particles has two challenges. On the one
hand, the ultimate sensitivity is required, down to the energy of a single microwave photon of …

We report an extensive high-sensitivity search for axion dark matter above 1 GHz at the
Center for Axion and Precision Physics Research (CAPP). The cavity resonant search …

We investigate the switching current distributions of ferromagnetic anomalous Josephson
junctions subjected to a linearly increasing bias current. Our study uncovers a significant …

We review three different approaches to investigate the non-equilibrium stochastic dynamics
of a Josephson junction affected by Lévy-distributed current fluctuations. First, we study the …

Here, we experimentally test the applicability of an aluminium Josephson junction of a few
micrometers size as a single photon counter in the microwave frequency range. We have …

The model of two coupled quantum pendula is studied and its suitability to describe
Josephson junctions interacting with axions is analysed. It is shown that some physical …

We propose a scheme for the detection of microwave-induced photons through a current-
biased Josephson junction, from the point of view of the statistical decision theory. Our …

We investigate an optimal scheme for the detection of single microwave photons by a
Josephson junction through the analysis of its switching times distribution. The proposed …

The recent developments in quantum technologies, as well as advanced detection
experiments, have raised the need to detect extremely weak signals in the microwave …

We discuss the resonant activation phenomenon on a Josephson junction due to the
coupling of the Josephson system with axions. We show how such an effect can be …