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Explore the groundbreaking research on quantum dynamics of vortices in superconductors in this comprehensive lecture. Delve into the experimental study of vortices in long Josephson junctions made of high kinetic inductance material, where the effective mass of the vortex is significantly reduced. Discover the first experimental evidence of a vortex existing in a coherent superposition of spatially distinct states. Examine the probing technique using weak microwave signals to observe quantum coherent superposition of vortex configurations. Analyze the two-level character of the system's spectrum and the coherence time of Rabi oscillations between states. Understand the significance of this phenomenon in complementing the temporal quantum coherence utilized in superconducting qubits. Gain insights into the quantum nature of vortices in superconductors and their role in determining the properties of superconducting materials and devices.
