In the past 20 years, impressive progress has been made both experimentally and
theoretically in superconducting quantum circuits, which provide a platform for manipulating …

We present a portable optically pumped magnetometer instrument for ultrasensitive
measurements within the Earth's magnetic field. The central part of the system is a sensor …

We construct a microwave detector based on the voltage switching of an underdamped
Josephson junction that is positioned at a current antinode of a λ/4 coplanar waveguide …

It is shown that superconducting charge and flux quantum bits (qubits) can be classified as
memory capacitive and inductive systems, respectively. We demonstrate that such …

We present the theory of resonance fluorescence from an asymmetric quantum dot driven by
a two-component electromagnetic field with two different frequencies, polarizations, and …

A periodically driven quantum system with avoided level crossing experiences both
nonadiabatic transitions and wave-function phase changes. These result in coherent …

A two-level quantum emitter with broken inversion symmetry simultaneously driven by an
optical field and a microwave field that couples to the permanent dipole's moment is …

We demonstrate amplification (and attenuation) of a probe signal by a driven two-level
quantum system in the Landau-Zener-Stückelberg-Majorana regime by means of an …

The integration, scale-up, and multiplexing arrays of superconducting qubits in quantum
circuits are the main challenges of superconducting quantum technology. Here we …

We investigate experimentally and theoretically the interference at avoided crossings which
are repeatedly traversed as a consequence of an applied ac field. Our model system is a …