Theoretical Atomic Physicist & Researcher
Aloka Kumar Sahoo
Postdoctoral Researcher in Theoretical Atomic Physics
Helmholtz-Insitut Jena, Germany
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Research Areas
Exploring the frontiers of theoretical physics through innovative research in Atomic physics.
Atomic Structure
Exploring relativistic effects and electron correlations in heavy atomic systems to understand spectroscopic properties, energy levels, and their implications for fundamental physics, including precision tests of quantum electrodynamics.
Electron-Atom Interactions
Investigating elastic and inelastic electron scattering from atoms and ions using the Relativistic Distorted Wave approximation to uncover interaction mechanisms, cross-section behaviors, and their relevance to plasma modeling and astrophysical phenomena.
Confined Atomic Systems
Studying electron scattering in confined systems like C60-fullerene to analyze quantum confinement effects, electron correlations, resonance phenomena, and their potential applications in different branches of physics.
Atomic Cascades
Performing atomic cascade calculations to understand energy transfer processes in highly excited systems, with applications in astrophysics, plasma physics, and the modeling of radiative processes in extreme environments such as neutron stars mergers.
Academic Background
My academic journey through prestigious institutions, building a strong foundation in theoretical physics.
Ph.D. in Physics
Indian Institute of Technology Roorkee, Roorkee, India
A comprehensive theoretical investigation into the atomic structure and electron interactions, focusing on heavy atomic systems with complex electronic configurations. The study includes both elastic scattering and electron impact excitation, employing a relativistic framework to handle the complexities of these systems. Additionally, the research explores the behavior of atomic systems under confinement, providing insights into how confinement affects electron interactions.
M.Sc. in Physics
Indian Institute of Technology (ISM) Dhanbad, Dhanbad, India
Professional Journey
My professional experience in academic research and scientific collaboration.
Postdoctoral Researcher
Hemholtz Institute Jena, Germany
- Atomic structure calculations
- Electron - Atom Collsion Parameter calculations
Guest Researcher
Hemholtz Institute Jena, Germany
- Electron impact excitation of atoms and ions
- Continuum electron phase analysis in presence of Atomic potential
Academic Teaching
My experience in teaching and mentoring students in physics and related disciplines.
Teaching Assistant, Electromagnetic Theory
Department of Physics, Indian Institute of Technology Roorkee
- Graded assignments and provided detailed feedback
- Conducted tutorial sessions for 25 undergraduate students
Lab Instructor, Basic Physics Laboratory
Department of Physics, Indian Institute of Technology Roorkee
- Provided guidance on data analysis and interpretation
- Conducted laboratory sessions for 30 undergraduate students
Lab Instructor, Numerical Analysis and Computer Programming
Department of Physics, Indian Institute of Technology Roorkee
- Provided hands-on experience with numerical methods and programming
- Conducted laboratory sessions for 30 undergraduate students
Lab Instructor, Scientific Computing with Python
Department of Physics, Indian Institute of Technology Roorkee
- Provided hands-on experience with scientific computing and data analysis
- Conducted laboratory sessions for 30 undergraduate students
Academic Publications
Featured research publications in high-impact journals, advancing our understanding of quantum physics and condensed matter systems.
Inelastic scattering of vortex electrons beyond the Born approximation
Sophia Strnat, Jonas Sommerfeldt, Aloka Kumar Sahoo, Lalita Sharma, Andrey Surzhykov
Journal of Physics B: Atomic, Molecular and Optical Physics 58: 075201 (2025) DOI: 10.1088/1361-6455/adc2bc
Theoretical Investigation on Vortex Electron Impact Excitation of a Mg Atom Confined in a Solid-State Environment
Sophia Strnat, Aloka Kumar Sahoo, Lalita Sharma, Jonas Sommerfeldt, Daesung Park, Christian Bick, Andrey Surzhykov
Atoms 13(3): 23 (2025) DOI: 10.3390/atoms13030023
Computation of effective collision strengths for plasma applications using JAC
Aloka Kumar Sahoo, Stephan Fritzsche, Lalita Sharma
European Physical Journal Plus 139: 986 (2024) DOI: 10.1140/epjp/s13360-024-05747-2
Electron impact excitation of bismuth
Aloka Kumar Sahoo, Lalita Sharma
Physica Scripta 99(9): 095410 (2024) DOI: 10.1088/1402-4896/ad6f51
Merits of atomic cascade computations
Stephan Fritzsche, Aloka Kumar Sahoo, Lalita Sharma, Zhongwen Wu, Stefan Schippers
European Physical Journal D 78(6): 75 (2024) DOI: 10.1140/epjd/s10053-024-00865-z
Electron impact excitation of the Tl+ ion: resonance and cascade transitions
Viktoria Roman, Aleksandr I. Gomonai, Lalita Sharma, Aloka Kumar Sahoo, Anna N. Gomonai
Journal of Physics B: Atomic, Molecular and Optical Physics 55: 165203 (2022) DOI: 10.1088/1361-6455/ac7924
Electron Impact Excitation of Extreme Ultra-Violet Transitions in Xe7+ - Xe10+ Ions
Aloka Kumar Sahoo, Lalita Sharma
Atoms 9(4): 76 (2021) DOI: 10.3390/atoms9040076
Positron Scattering from Pyridine and Pyrimidine
Nidhi Sinha, Aloka Kumar Sahoo, Bobby Antony
Journal of Physical Chemestry A 25: 5147 (2020) DOI: 10.1021/acs.jpca.0c02245
Global Academic Presence
Participating in and contributing to prestigious academic conferences and events around the world.
24th National Conference on Atomic and Molecular Physics (NCAMP25)
9th Topical Conference on Ultrafast Photonics and Quantum Science
International School on Atomic and Molecular Data Evaluation and Curation (ISAMDEC)
23rd National Conference on Atomic and Molecular Physics (NCAMP23)
37th National Symposium on Plasma Science & Technology (PLASMA2022)
53rd Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics (DAMOP 2022)
Recognition & Achievements
Recognition for contributions to the field of theoretical physics and academic excellence.
INSPIRE Scholar
Department of Science and Technology, India, 2014
Awarded for being in the top 1% in higher secondary examination in India.
Graduate Aptitude Test in Engineering (GATE)
Indian Institute of Technology Madras (IIT Madras), 2019
Lifetime Membership ISAMP
Indian Socitey of Atomic and Molecular Physics (ISAMP), 2020
Technical Expertise
Proficient in various programming languages and scientific computing tools essential for advanced physics research.
Programming Languages
Software & Tools
Operating Systems
- Linux (Ubuntu, Fedora)
- Windows
Scientific Computing
- NumPy, SciPy
- TensorFlow
Version Control
- Git, GitHub, GitLab
Visualization
- Plots.jl , Gnuplot, Matplotlib
Specialized Tools
Get in Touch
Interested in collaboration or have questions about my research? Feel free to reach out.
Contact Information
I'm interested in new collaborations and opportunities to discuss research. Please feel free to reach out if you have questions about my work or potential collaborations.
Atomic Physics Group
Room D205, Helmholtzweg 4
Helmholtz Institute Jena
Jena - 07743, Germany