Ultrastrong coupling between light and matter has, in the past decade, transitioned from a
theoretical idea to an experimental reality. It is a new regime of quantum light–matter …

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 …

Quantum information theorems state that it is possible to exploit collective quantum
resources to greatly enhance the charging power of quantum batteries (QBs) made of many …

We present an object-oriented open-source framework for solving the dynamics of open
quantum systems written in Python. Arbitrary Hamiltonians, including time-dependent …

In quantum electrodynamics, the choice of gauge influences the form of light–matter
interactions. However, gauge invariance implies that all physical results should be …

Artificial cavity photon resonators with ultrastrong light-matter interactions are attracting
interest both in semiconductor and superconducting systems because of the possibility of …

Superconducting circuits based on Josephson junctions exhibit macroscopic quantum
coherence and can behave like artificial atoms. Recent technological advances have made …

The ability to generate particles from the quantum vacuum is one of the most profound
consequences of Heisenberg's uncertainty principle. Although the significance of vacuum …

We consider a collection of two level systems, such as qubits, embedded into a microwave
cavity as a promising candidate for the realization of high power quantum batteries. In this …