Sambunath Das, Ph.D.

I am exploring how a spin qubit can be used as a sensitive probe for strongly-interacting quantum systems. By coupling a single qubit to many-body systems, we study how its decoherence dynamics reveal signatures of quantum phase transitions, quantum entanglement, and criticality. This approach provides a unique window into the behavior of strongly-correlated materials and their quantum phases, leveraging the interplay between qubit dynamics and the collective behavior of interacting quantum systems.