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

… We note that macroscopically entangled magnon states have been studied in a simplified
one-dimensional N-spin system in [30] by using the criterion of index p [31], but in there …

… entangle two magnon modes via the Kerr nonlinear effect when driving the systems far from
equilibrium. We consider two macroscopic … of entangling magnon modes in two massive YIG …

… are embodied by a collective motion of a large number of spins in a macroscopic ferrimagnet…
We assume that the magnon mode is strongly driven, leading to a large amplitude \(m)\ ≫ 1 …

… The transmon qubit and two magnon modes electrically and … qubit and two magnon modes
are treated as a twolevel emitter … long-distance entanglement of macroscopic magnons, which …

… platform to study macroscopic quantum phenomena such as the entanglement properties of
… Last, the two magnon modes and one photon mode form a closed loop in our hybrid system. …

… magnon and phonon modes whereas magnon and optical … optical and magnon modes
whereas magnon-phonon … the quantum feature at the macroscopic scale. As an example, …

… the qubit (ie, without applying the control field for AT splitting), we need to suppress the
magnon-qubit interaction, so we tune the Kittel mode away from the qubit in frequency and fix it at …

… macroscopic quantum states involving a large number of spins. Here, we show how to
entangle two magnon modes in two … magnons couple to high-quality optical whispering gallery …

… We use logarithmic negativity 43 as the quantitative measure to investigate the bipartite
entanglement E m 1 m 2 between the two magnon modes. It can be obtained from E m 1 m …