Time-dependent control of superconducting quantum circuits is a prerequisite for building scalable hardware. The description these complicated due to the electromotive force (emf) induced by time-varying magnetic fields. Here, we examine how emf modifies fractional Josephson effect. We show that flux introduces new term depends on geometry both circuit and applied field. This can be probed via ...

We propose a dynamical theory of how the chemical energy stored in battery generates electromotive force (emf). In this picture, battery's half-cell acts as an engine, cyclically extracting work from its underlying disequilibrium. show that double layer at electrode-electrolyte interface can exhibit rapid self-oscillation pumps electric current, thus accounting for persistent conversion into el...

The generation of large-scale magnetic fields ($\overline{\mathbf{B}}$) in astrophysical systems is driven by the mean turbulent electromotive force ($\overline{{\cal E}}$), cross correlation between local fluctuations velocity and fields. This can depend non-locally on $\overline{\mathbf{B}}$ through a convolution kernel $K_{ij}$. In new approach to find $K_{ij}$, we directly fit time series d...