High cooperativity in coupled microwave resonator ferrimagnetic insulator hybrids

H Huebl, CW Zollitsch, J Lotze, F Hocke… - Physical Review Letters, 2013 - APS
We report the observation of strong coupling between the exchange-coupled spins in a
gallium-doped yttrium iron garnet and a superconducting coplanar microwave resonator …

Coherent coupling of two remote magnonic resonators mediated by superconducting circuits

Y Li, VG Yefremenko, M Lisovenko, C Trevillian… - Physical Review Letters, 2022 - APS
We demonstrate microwave-mediated distant magnon-magnon coupling on a
superconducting circuit platform, incorporating chip-mounted single-crystal Y 3 Fe 5 O 12 …

High-cooperativity cavity QED with magnons at microwave frequencies

M Goryachev, WG Farr, DL Creedon, Y Fan… - Physical Review …, 2014 - APS
Using a submillimeter-sized YIG (yttrium-iron-garnet) sphere mounted in a magnetic-field-
focusing cavity, we demonstrate an ultrahigh cooperativity of 1 0 5 between magnon and …

Strong coupling of magnons in a YIG sphere to photons in a planar superconducting resonator in the quantum limit

RGE Morris, AF Van Loo, S Kosen, AD Karenowska - Scientific Reports, 2017 - nature.com
We report measurements made at millikelvin temperatures of a superconducting coplanar
waveguide resonator (CPWR) coupled to a sphere of yttrium-iron garnet. Systems …

Quantum entanglement between two magnon modes via Kerr nonlinearity driven far from equilibrium

Z Zhang, MO Scully, GS Agarwal - Physical Review Research, 2019 - APS
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 …

Magnon dark modes and gradient memory

X Zhang, CL Zou, N Zhu, F Marquardt, L Jiang… - Nature …, 2015 - nature.com
Extensive efforts have been expended in developing hybrid quantum systems to overcome
the short coherence time of superconducting circuits by introducing the naturally long-lived …

Hybridizing ferromagnetic magnons and microwave photons in the quantum limit

Y Tabuchi, S Ishino, T Ishikawa, R Yamazaki, K Usami… - Physical review …, 2014 - APS
We demonstrate large normal-mode splitting between a magnetostatic mode (the Kittel
mode) in a ferromagnetic sphere of yttrium iron garnet and a microwave cavity mode. Strong …

Phase-controlled multimagnon blockade and magnon-induced tunneling in a hybrid superconducting system

K Wu, W Zhong, G Cheng, A Chen - Physical Review A, 2021 - APS
We study the multimagnon blockade and magnon-induced tunneling in the hybrid
ferromagnet-superconductor system, where a magnon mode representing the collective …

Strong coupling between microwave photons and nanomagnet magnons

JT Hou, L Liu - Physical review letters, 2019 - APS
Coupled microwave photon-magnon hybrid systems offer promising applications by
harnessing various magnon physics. At present, in order to realize high coupling strength …

Identification of spin wave modes in yttrium iron garnet strongly coupled to a co-axial cavity

NJ Lambert, JA Haigh, AJ Ferguson - Journal of Applied Physics, 2015 - pubs.aip.org
We demonstrate, at room temperature, the strong coupling of the fundamental and non-
uniform magnetostatic modes of an yttrium iron garnet ferrimagnetic sphere to the …