IQUIST Young Researchers Seminar: "Parametrically induced strong coupling between a superconducting quantum circuit and a solid-state spin ensemble," Ále Baptista, Pfaff Group
- Sponsor
- IQUIST
- Speaker
- Ále Baptista, Pfaff Group
- Contact
- Wolfgang Pfaff
- wpfaff@illinois.edu
- Views
- 52
- Originating Calendar
- IQUIST Young Researchers Seminar
Abstract: Solid-state spin ensembles are promising candidates for quantum information storage due to their long coherence times. However, it remains an open challenge to achieve controlled and efficient quantum state transfer from components like superconducting qubits into these ensembles. We present a hybrid architecture for controllable coupling between a three-wave Josephson junction mixing element and a spin ensemble, mediated by a lumped-element 3D microwave cavity. We demonstrate parametrically controlled strong coupling to a zero-magnetic-field transition of 171Yb3+ ions implanted in a Y2SiO5 host crystal. These results show dynamic control over the interaction strength, representing a step toward a high-fidelity quantum interface and long-lived quantum state storage in a hybrid superconducting–spin memory.
Bio: Ále Baptista is a 6th year physics PhD student working with Wolfgang Pfaff on experimental superconducting circuit-based quantum information with a focus in hybrid quantum systems.