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India

USD 20 /hr

Research Scholar (PhD) | Expert in Atomic and Molecular Physics and spectroscopy

Profile Summary

Currently, I am working with a 22-pole radio frequency ion trap experimental setup to study ion-molecule reactions relevant to the interstellar medium. In addition, I study gas-phase photodissociation of aromatic heterocycles and explore long-range interaction that enable intermolecular Coulombic decay in unbound pi-molecules.

Subject Matter Expertise

• ★ Quantum Mechanics
• ☆ Applied Physics
• ☆ Plasma Physics

Services

• Writing
• Research
• Consulting
• Data & AI
• Product Development

Writing Technical Writing, Creative Writing

Research Scientific and Technical Research

Consulting Scientific and Technical Consulting

Data & AI Image Processing, Image Analysis, Data Visualization

Product Development Concept Development

Work Experience

Research Scholar

Indian Institute of Technology Madras

July 2023 - Present

Assistant Professor

Brainware University

September 2022 - June 2023

Education

M.Sc. (Physics)

Indian Institute of Engineering Science and Technology, Shibpur

September 2020 - August 2022

B.Sc. (Physics)

Vidyasagar University

July 2017 - July 2020

Certifications

• Jury Appreciation Prize in "Poster Presentation"

  Indian Institute of Technology Madras

  March 2025 - January 2026

Publications

JOURNAL ARTICLE

Siddhartha S. Payra, Pratikkumar Thakkar, Yash Lenka, G. Aravind (2026). Wavelength-dependent photofragmentation of pyrazine . Scientific Reports.

Saroj Barik, Pratikkumar Thakkar, Siddhartha S. Payra, Yash Lenka, Y. Sajeev, G. Aravind (2026). Collective Energy Transfer to a Spectator Atom via Multicenter Intermolecular Coulombic Decay . Physical Review Letters.

Siddhartha S. Payra, Yash Lenka, Pratikkumar Thakkar, Nihar Ranjan Behera, Saurav Dutta, G. Aravind (2025). Dissociative ionization of pyrazine: A pathway to reactive interstellar ions . The Journal of Chemical Physics.