6 papers
Non-Drude behaviour of optical conductivity in Kondo-lattice systems
Komal Kumari
The optical conductivity in a Kondo lattice system is presented in terms of the memory function formalism. I use Kondo-lattice Hamiltonian for explicit calculations. I compute the…
Density-Driven Resistance Response in : Theory
Komal Kumari, Raman Sharma, Navinder Singh
A colossal insulator-to-metal transition in high-spin pyrite phase of has been experimentally observed \cite{colomns2}. There are two possibilities behind this colossal i…
Electrical resistivity in 2d Kondo lattice systems
Komal Kumari
I extend the calculations represented in \cite{konav} regarding the resistivity in Kondo lattice materials from syatem to systems. In the present work I consider a 2d sys…
Direct Numerical Simulations of turbulent flows using high-order Asynchrony-Tolerant schemes: accuracy and performance
Komal Kumari, Diego A. Donzis
Direct numerical simulations (DNS) are an indispensable tool for understanding the fundamental physics of turbulent flows. Because of their steep increase in computational cost wit…
A Unified Approach for Deriving Optimal Finite Differences
Komal Kumari, Raktim Bhattacharya, Diego A. Donzis
A unified approach to derive optimal finite differences is presented which combines three critical elements for numerical performance especially for multi-scale physical problems,…
Resistivity of a quantum critical metal
Komal Kumari, Raman Sharma, Navinder Singh
We calculate resistivity in the paramagnetic phase just above the curie temperature in a ferromagnetic metal. The required dynamical susceptibility in the formalism of resisti…