The observation of the quantum states of motion of a macroscopic mechanical structure
remains an open challenge in quantum-state preparation and measurement. One approach …

Coherent superposition states of a mesoscopic quantum object play a major role in our
understanding of the quantum to classical boundary, as well as in quantum-enhanced …

Quantum entanglement is a phenomenon whereby systems cannot be described
independently of each other, even though they may be separated by an arbitrarily large …

Cavity control of quantum matter may offer new ways to study and manipulate many-body
systems. A particularly appealing idea is to use cavities to enhance superconductivity …

Electron spins hold great promise for quantum computation because of their long coherence
times. Long-distance coherent coupling of spins is a crucial step towards quantum …

We propose a strategy to generate a many-body entangled state in a collection of randomly
placed, dipolarly coupled electronic spins in the solid state. By using coherent control to …

We report dissipative magnon-photon coupling caused by the cavity Lenz effect, where the
magnons in a magnet induce a rf current in the cavity, leading to a cavity backaction that …

Periodic driving can be used to control the properties of a many-body state coherently and to
realize phases that are not accessible in static systems. For example, exposing materials to …

Superconducting circuits are a competitive platform for quantum computation because they
offer controllability, long coherence times and strong interactions—properties that are …

Superconductors host collective modes that can be manipulated with light. We show that a
strong terahertz light field can induce oscillations of the superconducting order parameter in …