30 citations · 84 across the 10 of their papers we have counts for
10 papers
Multichannel Quantum Defect Theory with Numerical Reference Functions: Applications to Cold Atomic Collisions
Dibyendu Sardar, Arpita Rakshit, Somnath Naskar +1
We develop a method for calculating multichannel wavefunctions in the spirit of quantum defect theory, based on numerically calculated reference functions. We benchmark the method…
Structure, spectroscopy and cold collisions of the (SrNa) ionic system
Sana Bellaouini, Arpita Pal, Arpita Rakshit +3
We perform a study on extended adiabatic potential energy curves of nearly 38 states of 1,3, 1,3 and 1,3 symmetries for the (SrNa) ion, though only the ground and fi…
Interactions and low energy collisions between an alkali ion and an alkali atom of different nucleus
Arpita Rakshit, Chedli Ghanmi, Hamid Berriche +1
We study theoretically interaction potentials and low energy collisions between different alkali atoms and alkali ions. Specifically, we consider systems like X + Y, where X(…
Optical Feshbach resonances through a molecular dark state: Efficient manipulation of -wave resonances in fermionic Yb atoms
Subrata Saha, Arpita Rakshit, Debashree Chakraborty +2
In a recent experiment by Yamazaki {\it et al.} [Phys.Rev. A {\bf 87} 010704 (R) (2013) ], -wave optical Feshbach resonance in fermionic Yb atoms using purely long-range…
A model study on atom-atom interactions with large scattering length in quasi-two dimensional traps
Partha Goswami, Arpita Rakshit, Bimalendu Deb
We carry out a model study on two-atom interactions and bound states in quasi-two dimensional traps. The interactions are modeled by two-parameter potentials with parameters being…
Decay dynamics in a strongly driven atom-molecule coupled system
Arpita Rakshit, Saikat Ghosh, Bimalendu Deb
Within the framework of master equation, we study decay dynamics of an atom-molecule system strongly coupled by two photoassociation lasers. Summing over the infinite number of ele…
Quantum Effects at Low Energy Atom-Molecule Interface
B. Deb, A. Rakshit, J. Hazra +1
Quantum interference effects in inter-conversion between cold atoms and diatomic molecules are analysed. Within the framework of Fano's theory, continuum-bound anisotropic dressed…
Vacuum-Induced Coherence in Ultracold Photoassociative Ro-Vibrational Excitations
Sumanta Das, Arpita Rakshit, Bimalendu Deb
We show that coherence between two excited ro-vibrational states belonging to the same molecular electronic configuration arises quite naturally due to their interaction with elect…
Ion-atom cold collision: Formation of cold molecular ion by radiative processes
Arpita Rakshit, Bimalendu Deb
We discuss theoretically ion-atom collisions at low energy and predict the possibility of formation of cold molecular ion by photoassociation. We present results on radiative homo-…
Suppression of power-broadening in strong-coupling photoassociation in the presence of a Feshbach resonance
Bimalendu Deb, Arpita Rakshit
Photoassociation (PA) spectrum in the presence of a magnetic Feshbach resonance is analyzed. Nonperturbative solution of the problem yields analytical expressions for PA linewidth…