3 papers
quant-ph2024
A Graph-Theoretical Framework to Analyse Zero Discord Quantum States
Anoopa Joshi, Parvinder Singh, Atul Kumar
This article comprehensively explores matrices and their prerequisites for achieving positive semidefiniteness. The study delves into a series of theorems concerning pure quantum s…
quant-ph2024
Separability of Graph Laplacian Quantum States: Utilizing Unitary Operators, Neighbourhood Sets and Equivalence Relation
Anoopa Joshi, Parvinder Singh, Atul Kumar
This article delves into an analysis of the intrinsic entanglement and separability feature in quantum states as depicted by graph Laplacian. We show that the presence or absence o…
quant-ph2014
A New Method of Classification of Pure Tripartite Quantum States
Jyoti Faujdar, Anoopa Joshi, Satyabrata Adhikari
The classification of the multipartite entanglement is an important problem in quantum information theory. We propose a class of two qubit mixed states $σ_{AB}= p|χ_{1}\rangle\lang…