Quantum-mechanical effects at the macroscopic level were first explored in Josephson-
junction-based superconducting circuits in the 1980s. In recent decades, the emergence of …

Recent experiments have demonstrated that light and matter can mix together to an extreme
degree, and previously uncharted regimes of light-matter interactions are currently being …

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

The unique features of quantum theory offer a powerful new paradigm for information
processing. Translating these mathematical abstractions into useful algorithms and …

Hybrid quantum circuits combine two or more physical systems, with the goal of harnessing
the advantages and strengths of the different systems in order to better explore new …

Over the past several decades, quantum information science has emerged to seek answers
to the question: can we gain some advantage by storing, transmitting and processing …

Abstract In circuit quantum electrodynamics,,,,,,,,,(QED), where superconducting artificial
atoms are coupled to on-chip cavities, the exploration of fundamental quantum physics in …

Superconducting circuits are macroscopic in size but have generic quantum properties such
as quantized energy levels, superposition of states, and entanglement, all of which are more …

The interaction of exciton-plasmon coupling and the conversion of exciton-plasmon-photon
have been widely investigated experimentally and theoretically. In this review, we introduce …

We measure the dispersive energy-level shift of an LC resonator magnetically coupled to a
superconducting qubit, which clearly shows that our system operates in the ultrastrong …