Rigidity of an ordered phase in condensed matter results in collective excitation modes
spatially extending to macroscopic dimensions. A magnon is a quantum of such collective …

Recent studies show that hybrid quantum systems based on magnonics provide a new and
promising platform for generating macroscopic quantum states involving a large number of …

We propose to directly and quantum-coherently couple a superconducting transmon qubit to
magnons—the quanta of the collective spin excitations, in a nearby magnetic particle. The …

Hybrid quantum devices expand the tools and techniques available for quantum sensing in
various fields. Here, we experimentally demonstrate quantum sensing of a steady-state …

One pillar of quantum magnonics is the exploration of the utilization of the mediation role of
magnons in different platforms to develop quantum technologies. The efficient coupling …

We present a scheme to entangle two magnon modes in two macroscopic yttrium-iron-
garnet spheres. The two spheres are placed inside two microwave cavities, which are driven …

We propose an experimentally realizable nonreciprocal magnonic device at the single-
magnon level by exploiting magnon blockade in a magnon-based hybrid system. The …

We propose a scheme to entangle two magnon modes via the Kerr nonlinear effect when
driving the systems far from equilibrium. We consider two macroscopic yttrium iron garnets …

We demonstrate the dispersive measurement of ferromagnetic resonance in a yttrium iron
garnet sphere embedded within a microwave cavity. The reduction in the longitudinal …

Coherent coupling between spin-wave excitations (magnons) and microwave photons in a
cavity may disclose new paths to unconventional phenomena as well as novel applications …