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 …

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 …

The aim of this review is to provide quantum engineers with an introductory guide to the
central concepts and challenges in the rapidly accelerating field of superconducting …

The heavy-fluxonium circuit is a promising building block for superconducting quantum
processors due to its long relaxation and dephasing time at the flux-frustration point …

We consider a system composed of a two-level system (ie, a qubit) and a harmonic oscillator
in the ultrastrong-coupling regime, where the coupling strength is comparable to the qubit …

A superconducting chip containing a regular array of flux qubits, tunable interqubit inductive
couplers, an XY-addressable readout system, on-chip programmable magnetic memory …

A rf–superconducting quantum interference device (SQUID) flux qubit that is robust against
fabrication variations in Josephson-junction critical currents and device inductance has …

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 demonstrated microwave-induced cooling in a superconducting flux qubit. The thermal
population in the first-excited state of the qubit is driven to a higher-excited state by way of a …

We measure longitudinal dressed states of a superconducting qubit, the single Cooper-pair
box, and an intense microwave field. The dressed states represent the hybridization of the …