ICTS:30356

Video URL

Superconductor-Insulator Transition in Weakly Monitored Josephson Junction Arrays

Superconductor-Insulator Transition in Weakly Monitored Josephson Junction Arrays

(2024). Superconductor-Insulator Transition in Weakly Monitored Josephson Junction Arrays. SciVideos. https://youtube.com/live/DpcgVOknzSM

Superconductor-Insulator Transition in Weakly Monitored Josephson Junction Arrays. SciVideos, Nov. 28, 2024, https://youtube.com/live/DpcgVOknzSM 

          @misc{ scivideos_ICTS:30356,
            doi = {},
            url = {https://youtube.com/live/DpcgVOknzSM},
            author = {},
            keywords = {},
            language = {en},
            title = {Superconductor-Insulator Transition in Weakly Monitored Josephson Junction Arrays},
            publisher = {},
            year = {2024},
            month = {nov},
            note = {ICTS:30356 see, \url{https://scivideos.org/icts-tifr/30356}}
          }
Sumilan Banerjee
Talk numberICTS:30356
Source RepositoryICTS-TIFR
Collection

Abstract

In recent years, ‘measurement-induced phase transitions’ (MIPT), have led to a new paradigm for dynamical phase transitions in quantum many-body systems. I will discuss a model of continuously monitored or weakly measured arrays of Josephson junctions (JJAs) with feedback. Using a variational self-consistent harmonic approximation, as well as analysis in the semiclassical limit, strong feedback and measurement limit, and weak coupling perturbative renormalization group, I will show that the model undergoes re-entrant superconductor-insulator MIPTs in its long-time non-equilibrium steady state as a function of measurement and feedback strength. I will contrast the phase diagram of monitored JJA with the well-studied case of dissipative JJA.