3 papers
quant-ph2026
CP-preserving channels
Indu Bala, Sourav Das, Swapan Rana
Completely positive (CP) matrices are ubiquitous in modern science and technology with applications in optimization, graph theory, and quantum entanglement. Recently, Johnston \emp…
astro-ph.CO2026
Cosmology-Independent Constraints on the Etherington Relation and SNeIa Absolute Magnitude Evolution from DESI-DR2
Sourav Das, Surhud More, Shadab Alam
We carry out a test of the fundamental Etherington relation (cosmic distance duality relation) which relates the luminosity distance and angular diameter distance $D_{\…
quant-ph2026
A new class of coherent states involving Fox-Wright functions and their generalization in the bicomplex framework
Snehasis Bera, Sourav Das, Abhijit Banerjee
In this work, an extensive class of coherent states is introduced by taking the Fox Wright function as the normalization function. It is demonstrated that these states satisfy the…