… strong magnon coupling, the ferromagnetic … a magnon mode and a superconducting qubit
can be mediated by adiabatically eliminating the cavity mode. Since the superconducting qubit …

… qubit-magnon setup like Ref. [39], where the qubit-magnon coupling is mediated via a
superconducting … the spins acting as a single macrospin precessing around z, with ferromagnetic …

… and a superconducting SQUID into a high-Q resonator. A single magnon in a ferromagnetic
crystal … In that work, a superconducting qubit based on the Josephson effect was used as a …

… Coherent coupling between a ferromagnetic magnon and a superconducting qubit
demonstrates a special fascination in the quantum information field. Here, we construct a hybrid …

… ferrimagnetic compensation temperature, we observe ultrastrong coupling of clockwise and
counterclockwise magnon … a ferromagnetic magnon and a superconducting qubit, Science …

… is represented by quanta of a large number of spin waves of the ferromagnetic material as
YIG, and in our considered model, it is adjusted in the z direction of the bias magnetic field. …

… This classical description works remarkably well in the case of the ferrimagnetic yttrium iron
… In the quantum regime, spin waves are collective (bosonic) excitations (magnons) that may …

… ferromagnetic waveguides have been proposed to mediate long-distance coupling between
spin qubits. … The associated relaxation rate is proportional to the magnon spectral density at …

… the qubit spin cannot excite magnons in the ferromagnet; thus, there are only virtual magnons
excited via coupling to the qubits—… in the qubits. Because of the presence of the gap in the …

… , eg, magnon number counting via an electromagnetically coupled superconducting qubit
16,… the vdW ferromagnet CGT of nm scale thickness, demonstrating a pathway towards stable …