3 papers
cond-mat.mes-hall2026
Synthetic Flat Bands, Hierarchical Topology, and Phase-Fluctuation-Insensitive Quantized Transconductance in Josephson Junctions
Subhadeep Chakraborty, Aabir Mukhopadhyay, Udit Khanna +1
We uncover hierarchy of topological phases within the synthetic Brillouin zone of a three-terminal Josephson junction's (3-TJJ's) Bogoliubov-de Gennes spectrum. We demonstrate that…
quant-ph2026
Multistability and Self-Trapping in Cavity-Magnonic Dimer
Pooja Kumari Gupta, Amarendra K. Sarma, Subhadeep Chakraborty
We show that a driven-dissipative cavity-magnonic dimer supports multistability with coexisting symmetric and symmetry-broken steady states. The interplay between magnon Kerr nonli…
quant-ph2024
Quantum signatures of bistability and limit cycle in Kerr-modified cavity magnomechanics
Pooja Kumari Gupta, Subhadeep Chakraborty, Sampreet Kalita +1
We study a Kerr-modified cavity magnomechanical system with a focus on its bistable regime. We identify a distinct parametric condition under which bistability appears, featuring t…