Cavity Magnonics with Domain Walls in Insulating Ferromagnetic Wires

Explore the quantum nature of magnetic domain walls (DWs) in insulating ferromagnetic wires through this 43-minute lecture by Mircea Trif from PCS Institute for Basic Science. Delve into the interaction between DWs and extended magnons, learning how to prepare and detect non-classical DW quantum states. Discover the coupling mechanism originating from the DW Berry phase modification caused by excited magnons. Gain insights into leveraging this interaction for DW quantum state preparation using cavity optomechanics principles. Examine how magnons can mediate long-range entangling interactions between distant DWs, potentially facilitating the implementation of universal quantum gates. Investigate a magnonic input-output framework and understand how DW quantum states can be inferred from magnonic power spectrum measurements. Consider the potential applications of this scheme in ferrimagnets and antiferromagnets, as it relies solely on the intrinsic degrees of freedom of the ferromagnet.