Superconducting qubits are leading candidates in the race to build a quantum computer
capable of realizing computations beyond the reach of modern supercomputers. The …

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 …

Multimode cavity quantum electrodynamics—where a two-level system interacts
simultaneously with many cavity modes—provides a versatile framework for quantum …

The theoretical investigation of nonadiabatic processes is hampered by the complexity of the
coupled electron-nuclear dynamics beyond the Born-Oppenheimer approximation …

The interaction of light and matter at the single-photon level is of central importance in
various fields of physics, including, eg, condensed matter physics, astronomy, quantum …

Isothermal transformations are minimally dissipative but slow processes, as the system
needs to remain close to thermal equilibrium along the protocol. Here, we show that …

Dissipative quantum phase transition has been widely believed to occur in a Josephson
junction coupled to a resistor despite a lack of concrete experimental evidence. Here, on the …

The spin-boson model, involving spins interacting with a bath of quantum harmonic
oscillators, is a widely used representation of open quantum systems. Trapped ions present …

We show that applying feedback and weak measurements to a quantum system induces
phase transitions beyond the dissipative ones. Feedback enables controlling essentially …

We provide a detailed discussion about the unitary and reduced evolution induced by family
of Hamiltonian models describing a multilevel system, with a ground state and a possibly …