10 citations · 34 across the 14 of their papers we have counts for
14 papers
Universal adjacency spectrum of (proper) power graphs and their complements on some groups
Komal Kumari, Pratima Panigrahi
The power graph of a group is an undirected graph with all the elements of as vertices and where any two vertices and are adjacent if and only if $…
Quantum error correction beyond the toric code: dynamical systems meet encoding
Garima Rajpoot, Komal Kumari, Sudhir Ranjan Jain
We construct surface codes corresponding to genus greater than one in the context of quantum error correction. The architecture is inspired by the topology of invariant integral su…
Quantum Zeno effect: a qutrit controlled by a qubit
Komal Kumari, Garima Rajpoot, Sudhir Ranjan Jain
For a three-level system monitored by an ancilla, we show that quantum Zeno effect can be employed to control quantum jump for error correction. Further, we show that we can realiz…
The tunable 0-\texorpdfstring{}{Lg} qubit: Dynamics and Relaxation
Garima Rajpoot, Komal Kumari, Sandeep Joshi +1
We present a systematic treatment of a 0-\texorpdfstring{}{Lg} qubit in the presence of a time-dependent external flux. A gauge-invariant Lagrangian and the corresponding Hamilt…
Qubit control using quantum Zeno effect: Action principle approach
Komal Kumari, Garima Rajpoot, Sandeep Joshi +1
We employ the stochastic path-integral formalism and action principle for continuous quantum measurements - the Chantasri-Dressel-Jordan (CDJ) action formalism [1, 2] - to understa…
A Genus-two Surface Code
Komal Kumari, Garima Rajpoot, Sudhir Ranjan Jain
We construct a double-toric surface code by exploiting the planar tessellation using a rhombus-shaped tile. With n data qubits, we are able to encode at least n/3 logical qubits or…
Evaluation of finite difference based asynchronous partial differential equations solver for reacting flows
Komal Kumari, Emmet Cleary, Swapnil Desai +3
Next-generation exascale machines with extreme levels of parallelism will provide massive computing resources for large scale numerical simulations of complex physical systems at u…
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 +1
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 +1
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…
The Memory Function Formalism: A Review
Komal Kumari, Navinder Singh, Navinder Singh Bathinda
An introduction to the Zwanzig-Mori-Götze-Wölfle memory function formalism (or generalized Drude formalism) is presented. This formalism is used extensively in analyzing the experi…