Since the pioneering works by Landau, Zener, Stückelberg, and Majorana (LZSM), it has
been known that driving a quantum two-level system results in tunneling between its states …

The Jaynes–Cummings Model (JCM) has recently been receiving increased attention as
one of the simplest, yet intricately nonlinear, models of quantum physics. Emphasising the …

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

A transition between energy levels at an avoided crossing is known as a Landau–Zener
transition. When a two-level system (TLS) is subject to periodic driving with sufficiently large …

Superconducting circuits can behave like atoms making transitions between two levels.
Such circuits can test quantum mechanics at macroscopic scales and be used to conduct …

We demonstrate Mach-Zehnder–type interferometry in a superconducting flux qubit. The
qubit is a tunable artificial atom, the ground and excited states of which exhibit an avoided …

We analyze the optical selection rules of the microwave-assisted transitions in a flux qubit
superconducting quantum circuit (SQC). We show that the parities of the states relevant to …

A flux qubit can have a relatively long decoherence time at the degeneracy point, but away
from this point the decoherence time is greatly reduced by dephasing. This limits the …

We analyze the dynamics of a two-level system subject to driving by large-amplitude
external fields, focusing on the resonance properties in the case of driving around the region …

We present experiments on the driven dynamics of a two-level superconducting artificial
atom. The driving strength reaches 4.78 GHz, significantly exceeding the transition …