Parametric magnon transduction to spin qubits.

Area of Science:

• Quantum Information Science
• Condensed Matter Physics
• Materials Science

Background:

• Quantum networks require efficient quantum information transduction between heterogeneous modules.
• Existing magnon-based transducers often use non-wafer-compatible materials like yttrium iron garnet and diamond, hindering scalability.
• Linear magnon transduction has been the primary focus, limiting exploration of nonlinear effects.

Purpose of the Study:

• To engineer a novel hybrid transducer for quantum information transduction.
• To utilize nonlinear magnonics for improved quantum information transfer.
• To develop a scalable solution for integrating quantum components using wafer-compatible materials.

Main Methods:

• Fabrication of a hybrid transducer integrating a magnetic microdisc with quantum spin defects in silicon carbide.
• Exploitation of magnon nonlinearities within the magnetic microdisc.
• Investigation of the interaction scheme between nonlinear magnonics and silicon carbide quantum spin defects.

Main Results:

• Demonstration of a hybrid transducer using wafer-compatible materials.
• Successful engineering of nonlinear magnon-based transduction.
• Observation of unique transduction behavior by combining nonlinear magnonics with quantum spin defects.

Conclusions:

• Nonlinear magnonics offers a promising avenue for quantum information transduction in scalable quantum networks.
• The developed hybrid transducer using silicon carbide and magnetic microdiscs represents a significant step towards integrated quantum systems.
• This approach highlights the potential of nonlinear magnonics to complement quantum systems for advanced transduction capabilities.