We employ a recently developed computational many-body technique to study for the first time the half-filled Anderson-Hubbard model at finite temperature and arbitrary correlation U …
M Karmakar - Journal of Physics: Condensed Matter, 2024 - iopscience.iop.org
We report the first theoretical investigation of the spectroscopic, electrical and optical transport signatures of d-wave Pauli limited superconductors, based on a non perturbative …
M Karmakar - Journal of Physics: Condensed Matter, 2020 - iopscience.iop.org
We report a quantum phase transition in Pauli limited d-wave superconductors and give the mean field estimates of the associated quantum critical point. For a population imbalanced d …
Using the determinant quantum Monte Carlo method, we study the magnetic susceptibility in the parameter space of the on-site interaction U, temperature T, electron filling〈 n〉, and the …
Frustrated Mott insulators such as transition metal dichalcogenides present an ideal platform for the experimental realization of externally tuned insulator-metal transition. In this paper …
SS Kunwar, M Karmakar - arXiv preprint arXiv:2404.05787, 2024 - arxiv.org
Taking cue from the recent experimental realization of metallic phases in Kagome materials we report the low temperature signatures and thermal scales of Kagome metals and …
N Swain, P Majumdar - Journal of Physics: Condensed Matter, 2017 - iopscience.iop.org
The checkerboard lattice, with alternating'crossed'plaquettes, serves as the two dimensional analog of the pyrochlore lattice. The corner sharing plaquette structure leads to a hugely …
We develop a real-space theory of the voltage bias driven transition from a Mott insulator to a correlated metal. Within our Keldysh mean-field approach the problem reduces to a self …
The two orbital Hubbard model, with the electrons additionally coupled to a complex magnetic background, arises in the pyrochlore molybdates. The background involves local …