Assist. Prof. Dr. Shagun Kaushal | Physics | Best Researcher Award

Assistant Professor | Vellore Institute of Technology | India

Assist. Prof. Dr. Shagun Kaushal is an Assistant Professor of Physics at the School of Advanced Sciences, Vellore Institute of Technology, with expertise in theoretical high energy physics. His academic journey spans advanced training and research in quantum field theory, general relativity, cosmology, and black hole physics. His research focuses on quantum entanglement and correlations in curved spacetimes, particularly analyzing the dynamics of Unruh-DeWitt detectors in cosmological and black hole scenarios, along with the effects of gravitational waves, background geometry, and quantum fluctuations on information processes. He has contributed significantly to the study of decoherence mechanisms in the early universe, exploring the interaction between matter fluctuations during inflation, gravitational potentials, and cosmological perturbations. His work also includes probing finite-temperature conformal field theories through thermal correlators and studying gravitational lensing, black hole shadows, and extensions of general relativity, including Brans-Dicke theory. Dr. Kaushal has published extensively in leading international journals such as Physics Letters B, Physical Review D, European Physical Journal C, Communications in Theoretical Physics, and Annals of Physics, including notable single-authored contributions. He has 33 citations by 28 documents and 8 documents. His research has attracted recognition within the global high-energy physics community. He has delivered invited talks and presentations at prestigious conferences and institutions worldwide, including workshops, international schools, and research forums. His technical proficiency spans multiple programming languages and scientific computing tools, which he applies to analytical and numerical studies in high energy physics. Alongside his research, he has been actively engaged in teaching, mentoring, and outreach activities, contributing to both academic development and community initiatives. His scholarly achievements, collaborative projects, and international exposure reflect his dedication to advancing the understanding of the fundamental connections between quantum theory and gravity.

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Featured Publications

Kaushal, S., & Bhattacharya, S. (2025). Entanglement generation between Unruh-DeWitt detectors in the de Sitter spacetime – Analysis with complex scalar fields. Annals of Physics.

Ali, M. S., Kaushal, S., & Liu, Y.-X. (2025). Strong gravitational lensing of a five-dimensional charged, equally rotating black hole with a cosmological constant. Communications in Theoretical Physics.

Kaushal, S. (2025). Fermionic entanglement in the presence of background electric and magnetic fields. European Physical Journal C.

Kaushal, S., & Singh, S. (2024). Backreaction inclusive Schwinger effect. arXiv.

Bhattacharya, S., & Kaushal, S. (2024). Entanglement generation between two comoving Unruh-DeWitt detectors in the cosmological de Sitter spacetime. arXiv.