scispace - formally typeset
P

Pulak Naskar

Researcher at University of Calcutta

Publications -  15
Citations -  84

Pulak Naskar is an academic researcher from University of Calcutta. The author has contributed to research in topics: Simulated annealing & Potential energy surface. The author has an hindex of 5, co-authored 14 publications receiving 73 citations.

Papers
More filters
Journal ArticleDOI

Structural and spectroscopic studies of iodine dimer radical anion hydrated clusters: an approach using a combination of stochastic and quantum chemical methods

TL;DR: In this article, the authors explore the idea of obtaining structures and IR spectral features of I2−(H2O)n cluster with n = 2 to 6, and show that the initial pre-optimization can indeed pave the way for quick and better convergence on subsequent quantum chemical refinement.
Journal ArticleDOI

An adaptive mutation simulated annealing based investigation of Coulombic explosion and identification of dissociation patterns in (CO2)n2+ clusters.

TL;DR: It is demonstrated how AMSA itself can overcome the predicaments which can arise in conventional SA and carry out the search for better results by adapting the parameters dynamically during the simulations so that the search process can come out of high energy basins and not go astray for better exploration and convergence, respectively.
Journal ArticleDOI

An investigation on the structure, spectroscopy and thermodynamic aspects of Br2(−)(H2O)n clusters using a conjunction of stochastic and quantum chemical methods

TL;DR: In this work, excellent quality pre-optimized structures are generated by exploring the suitable empirical potential energy surface using stochastic optimizer simulated annealing and then further refined using quantum chemical calculations to obtain the final structures, and spectral and thermodynamic features.
Journal ArticleDOI

Mapping out reaction paths for conformational changes in ( M g O ) n clusters: a study based on a stochastic procedure

TL;DR: In this article, the authors addressed the problem of finding transformation pathways or reaction paths for interconversion among isomers in (M g g O) n clusters, where n denotes the size.
Journal ArticleDOI

Role of the vibrational contribution in Coulomb explosion of dicationic neon gas clusters: a parallel tempering based study

TL;DR: With the incorporation of the vibrational contribution as the quantum effect, it is seen that reduction in the threshold value indeed occurs and the amount of decrease significantly varies with temperature.