9 citations · 13 across the 8 of their papers we have counts for
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Emergent $\PT$ Symmetry and Exceptional Points in a Driven Dirac Impurity
Vinayak M. Kulkarni
Periodic driving can generate passive non-Hermitian impurity dynamics without microscopic gain. We derive this mechanism for an inversion-asymmetric spin--orbit-coupled Dirac impur…
Anderson Impurities In Edge States with Nonlinear and Dissipative Perturbations
Vinayak M. Kulkarni, N. S. Vidhyadhiraja
We show that exceptional points (EPs) and non-Hermitian behavior can emerge dynamically in impurity models with Hermitian microscopic origins. Using perturbative renormalization gr…
Emergent soft-gap Anderson models at quantum criticality in a lattice Hamiltonian within dynamical mean field theory
Sujan K. K., Vinayak M. Kulkarni, N. S. Vidhyadhiraja +1
Local quantum criticality in itinerant fermion systems has been extensively investigated through the soft-gap Anderson impurity model, wherein a localized, correlated impurity, hyb…
Kondo effect in a non-Hermitian, -symmetric Anderson model with Rashba spin-orbit coupling
Vinayak M Kulkarni, Amit Gupta, N. S. Vidhyadhiraja
The non-interacting and non-Hermitian, parity-time ()-symmetric Anderson model exhibits an exceptional point (EP) at a non-Hermitian coupling , which remains unr…