28 citations · 71 across the 9 of their papers we have counts for
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Can disorder act as a chemical pressure? An optical study of the Hubbard model
Himadri Barman, Mukul S. Laad, Syed R. Hassan
The optical properties have been studied using the dynamical mean-field theory (DMFT) on a disordered Hubbard model. Despite the fact that disorder turns a metal to an insulator in…
Realization of a "Two Relaxation Rates" in the Hubbard-Falicov-Kimball Model
H. Barman, M. S. Laad, S. R. Hassan
A single transport relaxation rate governs the decay of both, longitudinal and Hall currents in Landau Fermi Liquids (LFL). Breakdown of this fundamental feature, first observed in…
Parity-time symmetry-breaking mechanism of dynamic Mott transitions in dissipative systems
Vikram Tripathi, Alexey Galda, Himadri Barman +1
We describe the critical behavior of electric field-driven (dynamic) Mott insulator-to-metal transitions in dissipative Fermi and Bose systems in terms of non-Hermitian Hamiltonian…
Zero temperature dynamics of the Hubbard model in infinite dimensions: A local moment approach
Himadri Barman
The local moment approach (LMA) has presented itself as a powerful semi-analytical quantum impurity solver (QIS) in the context of the dynamical mean-field theory (DMFT) for the pe…
Transport and Spectra in the Half-filled Hubbard Model: A Dynamical Mean Field Study
Himadri Barman, N. S. Vidhyadhiraja
We study the issues of scaling and universality in spectral and transport properties of the infinite dimensional particle--hole symmetric (half-filled) Hubbard model within dynamic…