Towards Josephson effect in fractional quantum Hall systems via light-matter interaction engineering

Objective

One of the driving forces behind Condensed Matter physics research is the quest for electronic phases that are increasingly resilient to external perturbations, such as temperature fluctuations or disorder, with the long-term goal of achieving systems that exhibit quantum properties under ambient conditions and/or at the macroscopic scale. In the nearer term, even slight enhancements in the robustness of some specific phases could pave the way for novel hybrid platforms that combine fragile electronic states, potentially unlocking functionalities currently beyond our reach. In this spirit, the SUPERFRACA project has been conceived to bridge recent advances in light-matter interaction physics and Moiré materials, with the ultimate goal of realizing the first-ever Josephson junction in a fractional quantum Hall system. Beyond the fundamental interest of bridging two of the most emblematic phenomena in Condensed Matter physics - namely the Josephson effect and fractional quantum Hall physics - this effort could also lead to the generation of novel quasiparticles, known as parafermions, which could serve as key components in the development of large-scale quantum processors based on topologically protected quantum computation.