18 citations · 47 across the 5 of their papers we have counts for
7 papers · 1 filter
ASTRA, A Transition Density Matrix Approach to the Interaction of Attosecond Radiation with Atoms and Molecules
Juan M Randazzo, Carlos Marante, Siddhartha Chattopadhyay +4
A new formalism and computer code, ASTRA (AttoSecond TRAnsitions), has been developed to treat the interactions of short, intense radiation with molecules. The formalism makes exte…
RCC calculation of electric dipole polarizability and correlation energy of Cn, Nh and Og: Correlation effects from lighter to superheavy elements
Ravi Kumar, S. Chattopadhyay, D. Angom +1
We employ a fully relativistic coupled-cluster theory to calculate the ground-state electric dipole polarizability and electron correlation energy of superheavy elements Cn, Nh…
Fock-space relativistic coupled-cluster calculation of hyperfine induced clock transition in Al
Ravi Kumar, S. Chattopadhyay, D. Angom +1
We have developed an all-particle Fock-space relativistic coupled-cluster method to calculate the properties of two-valence atoms and ions. Using the method we compute the properti…
Electric dipole polarizability of group-IIIA ions using PRCC: Large correlation effects from nonlinear terms
Ravi Kumar, S. Chattopadhyay, B. K. Mani +1
We compute the ground-state electric dipole polarizability of group-IIIA ions using the perturbed relativistic coupled-cluster (PRCC) theory. To account for the relativistic effect…
Electron correlation effects in enhanced-ionization of diatomic molecules in near-infrared fields
Siddhartha Chattopadhyay, Lars Bojer Madsen
We investigate electron correlation effects in internuclear-distance-dependent enhanced ionization of , , and molecules by intense near-in…
Perturbed Coupled-Cluster theory to calculate dipole polarizabilities of closed shell systems: Application to Ar, Kr, Xe and Rn
S. Chattopadhyay, B. K. Mani, D. Angom
We use perturbed relativistic coupled-cluster (PRCC) theory to calculate the electric dipole polarizability of noble gas atoms Ar, Kr, Xe and Rn. We also provide a detailed descrip…