63 citations · 98 across the 4 of their papers we have counts for
4 papers
Arnold web and dynamical tunneling in a four-site Bose-Hubbard model
Sourav Karmakar, Srihari Keshavamurthy
We present the quantum and classical study of a four-well trapped Bose-Einstein condensate (BEC) modeled by the Bose-Hubbard Hamiltonian. The model used is fashioned as a minimal b…
Intramolecular vibrational energy redistribution and the quantum ergodicity transition: a phase space perspective
Sourav Karmakar, Srihari Keshavamurthy
Intramolecular vibrational energy redistribution (IVR) impacts the dynamics of reactions in a profound way. Theoretical and experimental studies are increasingly indicating that ac…
Stable chaos and delayed onset of statisticality in unimolecular dissociation reactions
Sourav Karmakar, Pankaj Kumar Yadav, Srihari Keshavamurthy
Statistical models provide a powerful and useful class of approximations for calculating reaction rates by bypassing the need for detailed, and often difficult, dynamical considera…
Relevance of the resonance junctions on the Arnold web to dynamical tunneling and eigenstate delocalization
Sourav Karmakar, Srihari Keshavamurthy
In this work we study the competition and correspondence between the classical and quantum routes to intramolecular vibrational energy redistribution (IVR) in a three degrees of fr…