Control of the magnon-photon level attraction in a planar cavity

Understand

A resistive coupling circuit is used to model the recently discovered dissipative coupling in a hybridized cavity photon-magnon system.

• With this model as a basis we have designed a planar cavity in which a controllable transition between level attraction and level repulsion can be achieved.
• This behaviour can be quantitatively understood using an LCR circuit model with a complex coupling strength.
• Our work therefore develops and verifies a circuit method to model level repulsion and level attraction and confirms the universality of dissipative coupling in the cavity photon-magnon system.