28 citations · 195 across the 17 of their papers we have counts for
17 papers
Two-photon double ionization with finite pulses: Application of the virtual sequential model to helium
Siddhartha Chattopadhyay, Carlos Marante, Barry Schneider +1
As a step toward the full \emph{ab-initio} description of two-photon double ionization processes, we present a finite-pulse version of the virtual-sequential model for polyelectron…
ASTRA: a Transition-Density-Matrix Approach to Molecular Ionization
Juan Martín Randazzo, Carlos Marante, Siddhartha Chattopadhyay +3
We describe \ASTRA{} (AttoSecond TRAnsitions), a new close-coupling approach to molecular ionization that uses many-body transition density matrices between ionic states with arbit…
Measuring autoionization decay lifetimes of optically forbidden inner valence excited states in neon atoms with attosecond noncollinear four wave mixing spectroscopy
Nicolette G. Puskar, Yen-Cheng Lin, James D. Gaynor +8
Attosecond noncollinear four wave mixing spectroscopy with one attosecond extreme ultraviolet (XUV) pulse and two few-cycle near-infrared (NIR) pulses was used to measure the autoi…
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…
J/ yields in low energy nuclear collisions at SPS and FAIR: A baseline estimation
S. Chatterjee, P. P. Bhaduri, S. Chattopadhyay
The yield of mesons, produced in proton-nucleus () and nucleus-nucleus () collisions are estimated within a Glauber model ansatz for the upcoming low energy heavy-i…
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…