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Magnon polaritons in a van der Waals ferromagnet coupled to a superconducting resonator
Alvaro Bermejillo-Seco, Luuk J. van der Goot, Matteo Arfini +3
Achieving magnon-photon hybridization in the microwave regime is essential for integrating magnetic excitations with superconducting circuits. While this has been extensively demon…
Magnon-magnon interaction induced by nonlinear spin wave dynamics
Matteo Arfini, Alvaro Bermejillo-Seco, Artem Bondarenko +4
We experimentally and theoretically demonstrate that nonlinear spin-wave dynamics can induce an effective resonant interaction between non-resonant magnon modes in a yttrium iron g…
Designing spin and orbital sources of Berry curvature at oxide interfaces
Edouard Lesne, Yildiz G. Saǧlam, Raffaele Battilomo +8
Quantum materials can display physical phenomena rooted in the geometry of electronic wavefunctions. The corresponding geometric tensor is characterized by an emergent field known…
Level attraction and idler resonance in a strongly driven Josephson cavity
F. Fani Sani, I. C. Rodrigues, D. Bothner +1
Nonlinear Josephson circuits play a crucial role in the growing landscape of quantum information and technologies. The typical circuits studied in this field consist of qubits, who…
Probing the current-phase relation of graphene Josephson junctions using microwave measurements
Felix E. Schmidt, Mark D. Jenkins, Kenji Watanabe +2
We perform extensive analysis of graphene Josephson junctions embedded in microwave circuits. By comparing a diffusive junction at 15 mK with a ballistic one at 15 mK and 1 K, we a…
Current detection using a Josephson parametric upconverter
Felix E. Schmidt, Daniel Bothner, Ines C. Rodrigues +3
We present the design, measurement and analysis of a current sensor based on a process of Josephson parametric upconversion in a superconducting microwave cavity. Terminating a cop…