3 papers
cond-mat.mes-hall2026
Symmetry Protected Bulk-Boundary Correspondence in Interacting Topological Insulators
Kiran Babasaheb Estake, Dibyendu Roy
We establish a quantitative bulk-boundary correspondence in interacting topological insulators by relating many-body topological invariants to characteristic degeneracy structures…
quant-ph2025
From Chiral Topological Dynamics to Chiral Topological Amplification: Real vs Imaginary Parameters in a Hermitian Bosonic Chain
Kiran Babasaheb Estake, T. R. Vishnu, Dibyendu Roy
We propose a Hermitian quadratic bosonic model (QBH) whose dynamical matrix exhibits distinct topological and dynamical phenomena depending on whether the hopping and pairing ampli…
cond-mat.mes-hall2025
Detecting winding and Chern numbers in topological matter using spectral function
Kiran Babasaheb Estake, Dibyendu Roy
We propose a method to directly probe bulk topological quantum numbers in topological matter by measuring the momentum-space single-particle spectral function (SPSF). Angle-resolve…