Recent years have witnessed an explosion of interest in quantum devices for the production,
storage, and transfer of energy. This Colloquium concentrates on the field of quantum …

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 …

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

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 …

Quantum error correction with biased-noise qubits can drastically reduce the hardware
overhead for universal and fault-tolerant quantum computation. Cat qubits are a promising …

The quantum Rabi model (QRM) with linear coupling between light mode and qubit exhibits
the analog of a second-order phase transition for vanishing mode frequency which allows …

We investigate a Dicke quantum battery in the dispersive regime, where the photons trapped
in a resonant cavity are much more energetic with respect to the two-level systems …

We study multiphoton blockade and photon-induced tunneling effects in the two-photon
Jaynes-Cummings model, where a single-mode cavity field and a two-level atom are …

Quadratic light-matter interactions are nonlinear couplings such that quantum emitters
interact with photonic or phononic modes exclusively via the exchange of excitation pairs …