Email : jksaha.phys@aliah.ac.in
Address : Department of Physics IIA/27 Newtown, 2nd Floor Aliah University Kolkata-700156, India [Intercom: 3508]
Phone : 91-9434355907
Joined : 28/12/2015
Ph.D. (Science), 2013
Thesis title: Atomic Structure calculations of free and confined three-body systems
West Bengal State University
M.Sc. (Physics), 2006
Specialization: High Energy Physics
Presidency College; Calcutta University
B.Sc. (Physics Hons.), 2004
Rahara Ramakrishna Mission Vivekananda Centenary College; Calcutta University
Assistant Professor at the Department of Physics, Aliah University, New Town, Kolkata from December, 2015 to till date
Guest Lecturer at the Department of Physics, Acharya Prafulla Chandra College, New Barrackpore, Kolkata from August 2010 to Dec. 2015
Guest Lecturer at the Department of Physics, Sarojini Naidu College for Women, Jessore road, Dum Dum during January to March 2007
Atomic, Molecular and Optical Physics
Quantum Theory
Mathematical Physics
Autumn Semester
Spring Semester
Soft skill (Ph. D course work)
Estimation of the highly precise spectral properties of free few-body systems in bound and resonance states using ab-initio Quantum Chemical Methods (Ritz variational method and Stabilization method with explicitly correlated wave function in Hylleraas coordinates, Time dependent Perturbation theory)
Development of theoretical models for the structure calculations of atoms and exotic systems under various types of confinements (pressure confinement, fullerene cage confinement, quantum cavity confinement, Weakly, Strongly, Quantum and Complex dusty plasma confinements)
Estimation of quantum entanglement entropies (Linear and von Neumann) and quantum information theoretic entropies (Shannon and Fisher) for the free and confined three-body quantum systems adopting explicitly correlated basis sets
Determination of resonance parameters of autoionizing states of highly charged ions using stabilization method in the relativistic configuration interaction framework
Investigation on critical stability and quantum phase transition in quantum three-body systems under various types of finite range interactions
Studies on three-body exotic Borromean (or Effimov) systems (ppe, ppmu, pppi, ppK and their isotopic substitutions) bound via screened Coulomb interactions
Determination of structural and chemical properties of endohedral metallofulerene (EMF), polycyclic aromatic hydrocarbons (PAHs) and other astrophysically important molecules and clusters using ab-inito and density functional methods using standard molecular structural package programs
Investigation on coherent non-linear phenomenon [e.g. electromagnetically induced transparency (EIT), electromagnetically induced absorption (EIA), lasing without inversion (LWI), gain without inversion (GWI) etc.] in multi-level atom-laser interaction systems (under pump-probe spectroscopy) using density matrix formalism under both perturbative and non-perturbative scheme
Investigation on efficient two-dimensional atom localization using probe absorption in different types of microwave driven multi-level atom-laser interaction systems exploiting the atomic coherence and quantum interference effects
Worked as a Research Associate-I (Post Doctoral fellow) at the Department of Spectroscopy, Indian Association for the Cultivation of Science (IACS), Jadavpur, India from 14th August, 2014 to 22th December, 2015.
Worked as a JRF/SRF in a DAE-BRNS funded project entitled ``Bound and resonance states of two electrons ions: Theoretical and experimental investigations'' at the Department of Physics, Narula Institute of Technology, Agarpara, India during 15th July, 2011 to 31st March 2014.
Worked as a JRF/SRF in a DAE-BRNS funded project entitled ``Effect of laser plasma on doubly excited states of two electron systems and its applications in plasma diagnostics'' at the Department of Physics, Narula Institute of Technology, Agarpara, India during 4th August, 2008 to 31st March, 2011.
Worked as a part time research fellow at the Department of Spectroscopy, Indian Association for the Cultivation of Science (IACS), Jadavpur, India during February 2007 to July 2008.
Click on the following links for updated list of publications
"S. N. Ghosh Young Scientist Award" given by Indian Society for Atomic and Molecular Physics (ISAMP) in May, 2018.
Competed globally and selected for participation as an young scientist in the "66th Lindau Nobel Laureate Meetings dedicated to Physics 2016" held at Lindau, Germany during 26th June to 1st July, 2016 [Funding: “Alcoa Foundation” and “Foundation of the Lindau Nobel Laureate Meetings”].
“ICPEAC Sheldon Datz Prize” in Atomic and Molecular Physics at Toledo, Spain in July, 2015.
“Best Thesis Award” given by Indian Society for Atomic and Molecular Physics (ISAMP) at TIFR, Mumbai, India in March 2015.
“International Travel support (ITS) Award” given by Department of Sience and Technology (DST), Govt. of India in June 2013.
"Qualified National Eligibility Test (Physical Sciences)" conducted by U.G.C-C.S.I.R, Govt. of India held on 20.06.2010.
“Certificate of Merit” for ranking first (1st) in order of merit in M. Sc. (Physics) (Part I+Part-II) Exam (2006).
“Partha Sarathi Memorial Prize” for ranking first (1st) in order of merit in M. Sc. (Physics) Part-I Exam (2005).
Study of coherent nonlinear resonances in Zeeman sublevels of hyperfine structure of Rb atoms using pump-probe laser spectroscopy: Theory and Experiment
Funding: Department of Science and Technology, Govt. of West Bengal;
Role: Co-PI for theoretical simulations [P.I. Dr. Md. Mabud Hossain]
Period: July 2018 - March 2023
Lifemember, Indian Physical Soceity (IPS)
Lifemember, Indian Association for the Cultivation of Science (IACS)
Lifemember, Indian Soceity for Atomic and Molecular Physics (ISAMP)
Life member, Lindau Alumni Network
Life member, Indian Physics Association (IPA)
Specific Refresher Course in Physics (Theme: Modern Aspects of Physics) jointly organized by Department of Physics and HRDC, University of Calcutta, Kolkata during 19th March to 2nd September, 2019.
72nd Orientation Programme (Science, Engeenering & Technology) organized by HRDC, Jadavpur University, Kolkata during 6th February to 6th March, 2019.
Participations in National meetings
Participated in the “National conference on recent advances in Photoscience” at Department of Chemistry and Indian Photobiology Society, Jadavpur University, Kolkata, India on 9th August, 2008.
Poster presented on “Stabilization method for doubly excited resonance states (3Pe) of helium” at the “1st DAE-BRNS Symposium on Atomic, Molecular and Optical Physics” held at Inter University Accelerator Centre, New Delhi, India during 10-13th February, 2009.
Participated in the “One Day workshop on recent trends in atomic and molecular physics research” held at Department of Physics, School of Mathematical Sciences, Ramakrishna Mission Vivekananda University, Belur Math, Howrah, India on 13th February, 2010.
Poster presented on “Doubly excited 1,3Pe states of helium-like ions in weakly coupled plasma environment” at the “National Symposium on Atomic and Molecular Spectroscopy (NSAMS-2010)” held at Integrated Science Education and Research Centre (ISERC), Siksha-Bhavana (Institute of science), Visva-Bharati, Santiniketan, India during 27-28th March, 2010.
Participated in the “UGC sponsored state level one day seminar on Astronomy and Astrophysics in the context of IYA-2009” held at Acharya Prafulla Chandra College, New Barrackpore, Kolkata, India on 1st December, 2010.
Poster presented on “Resonance states of helium iso-electronic sequences” at the “2nd DAE-BRNS symposium on Atomic, Molecular and Optical Physics” held at Karnatak University, Dharwad, India during 22-25th February, 2011.
Participated in the “One day seminar on Atomic, Molecular and Optical (AMO) Physics” held at Indian Association for the Cultivation of Science, Jadavpur, Kolkata, India on 19th August, 2011.
Participated in the “UGC sponsored national level seminar on Modern trends on research in Chemistry: Scope of inclusion in Under-graduate and Post-graduate courses” held at Barasat Govt. College, Barasat, India on 7-8th September, 2011.
Oral presentation on “Highly stripped aluminium under Debye plasma” in the “Workshop on highly charged ions and atomic collisions” held at Tata Institute of Fundamental Research, Colaba, Mumbai, India during 28-31st March, 2012.
Poster presented on “Free and Confined highly stripped helium-like ions” in the “3rd DAE-BRNS symposium on Atomic, Molecular and Optical Physics” held at IISER, Kolkata, India during 14-17th December, 2012.
Participated in the “One day seminar on Atomic, Molecular and Optical (AMO) Physics” held at Indian Association for the Cultivation of Science, Jadavpur, Kolkata, India on 18th January, 2013.
Participated in the “DST-SERC School on the physics of highly charged ions” held at HBCSE Campus, Tata Institute of Fundamental Research, Mumbai, India during 10th February to 3rd March, 2013.
Poster presented on “Exotic systems under plasma: A study on Borromean window” at the “Topical conference on Atomic Processes in Plasmas (ISAMP-TC-2013)" organized by Institute for Plasma Research, Gandhinagar, Gujrat, India during 18-20th November, 2013.
Participated at the “Workshop on Electronic structure, Atomistic and Statistical Modeling in Chemistry, Materials and Life Sciences” held at the Department of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur, Kolkata, India during 20-22 October, 2014.
Poster presented on “Structural calculations of atoms under different confinements” at the “XX National conference on Atomic and Molecular physics (NCAMP)” held at IIST, Trivandrum, India during 8-12th December, 2014.
Poster presented on “Fluorescence active auto-ionizing states under hot plasma” at the “Discussion Meeting on Frontiers in Light-Matter Interactions” held at Department of Material Science, Indian Association for the Cultivation of Science, Jadavpur, Kolkata, India during 19-22 December, 2014
Participated at the “One-Day Discussion Meeting on Light and Photons” held at the Department of Material Science, Indian Association for the Cultivation of Science, Jadavpur, Kolkata, India during 2015.
Participated in the “Frontiers in Atomic, Molecular and Optical Sciences” Organized by Raman Centre for Atomic, Molecular and Optical Sciences (RCAMOS), Indian Association for the Cultivation of Science (IACS) Jadavpur, Kolkata, India during 19-20 February 2016.
Participated and Local organizing Committee member of “Introductory Workshop on Astro physics and Cosmology” in collaboration with IUCAA held at the Department of Physics, Aliah University, Newtown, Kolkata, India during 27-28 September, 2016.
Oral presentation on “Resonances in two-electron atoms” at the “UGC sponsored national seminar on Frontiers in Modern Physics” held at the Department of Physics, Jogamaya Devi College, Kolkata, India during 21-22 November, 2016.
Invited talk given on “Fluroscence active resonances of two-electron atoms” at the “TEQIP Sponsored National Conference on Modern Trends in Physics (NCMTP-2017)” Organized by Department of Basic Science and Humanities (Physics) held at Narula Institute of Technology, Agarpara, Kolkata, India on 11th March, 2017.
Invited talk given on ''The stability of quantum few-body systems: A study on Borromean window'' at the ''Recent trends in Atomic, Molecular and Material Science (RTAMMS 2017)'' held at Adamas University, Barasat, India on 16th September, 2017.
Invited talk given on "The stability of quantum few-body system: A study on Borromean window" at the "DST-SERC School on Atomic and Molecular Physics'' held at Ramakrishna Mission Residential College, Narendrapur, Kolkata, India on 19th December, 2017.
Invited talk given on "Precise Electronic structure of confined atoms, molecules and exotic systems using explicitly correlated variational approach" at the Department of Nuclear and Atomic Physics, Tata Institute for Fundamental Research (TIFR), Colaba, Mumbai, India on 10th April, 2018.
Oral presentation given on "Atomic structure under plasma environment" at the "M.R.Gupta Memorial National Seminar" held at the Department of Mathematics, Jadavpur University, Kolkata, India on 3rd August, 2018.
Invited talk given on "Borromean Rings & Quantum Particles" at the "Recent trends in Science'' held at Gangarampur College, Dakshin Dinajpur, West Bengal, India on 19th March, 2019.
Oral presentation given on "Critical behavior of screened Zee system" at the "National Conference on Science, Technology and Communication Skills'' held at the Department of Basic sciences, Narula Institute of Technology, Kolkata, India on 5th April, 2019.
Chaired a session at the "Online Lecture Series on Introduction to Field Theory: LSIFT-2020'' organized by the Department of Physics, Aliah University, Newtown, Kolkata, India on 6th December, 2020.
Participations in International meetings
Poster presented on “A new approach of understanding bound and resonance states of helium: Stabilization method” at the “International Conference and Humboldt Kolleg, Frontiers of Environmental and Health Sciences Useful to Mankind: A Multidisciplinary Approach” held at Scientific Convention Centre, Lucknow, India during 24-26th February, 2010.
Poster presented on “Doubly excited resonance 1Se and 3Pe states of two electron atoms” at the “15th International Conference on the Physics of Highly Charged Ions, HCI-2010” held at Fudan University, Shanghai, P. R. China during 29th August to 3rd September, 2010.
Poster presented on “Borromean states of exotic systems under screened coulomb interactions” at the “28th International Conference on Photonic, Electronic and Atomic collisions, ICPEAC-2013” organized by Chinese Academy of Sciences held at Lanzhou, P. R. China during 23-30th July, 2013.
Poster presented on “Autoionizing states of spatially confined helium atom” and “Doublet and quartet states of Li-like systems under hot plasmas” at the “29th International Conference on Photonic, Electronic and Atomic collisions, ICPEAC-2015” organized by Universidad Autnoma de Madrid held at Toledo, Spain during 22-29th July, 2015.
Participated at the “66th Lindau Nobel Laureate Meetings dedicated to Physics 2016" held at Lindau, Germany during 26th June to 1st July, 2016.
Invited talk given on "Accurate Variational Method for Confined Few-body Systems" at the Theoretical Chemistry and The Computational Chemistry Center of the Friedrich-Alexander University, Erlangen, Germany on 4th July, 2016.
Invited talk given on "Accurate Variational Method for Confined Few-body Systems" at the Fundamental Physics for Metrology centre of German National Metrology Institute (PTB), Braunschweig, Germany on 7th July, 2016.
Invited talk given on "Critical behavior of screened Zee system" at the "13th Asian International Seminar on Atomic and Molecular Physics'' jointly organized by TIFR and IITB during 3rd-6th December 2018 at Mumbai, India.
Poster presented on "Resonance states of exotic Three-body ions" at the "International Conference on Atomic, Molecular, Optical & Nano Physics with Applications (CAMNP 2019)'' organized by Department of Applied Physics, Delhi Technological University, New Delhi, India during December 18th-20th, 2019.
Invited talk given on "Atomic systems under plasma and cavity confinements'' at the "32nd International Conference on Photonic, Electronic and Atomic collisions, ICPEAC-2021'' (Virtual) during 20-23th July, 2021.
Invited talk (Virtual) given on "Research activities of AMO Physics group@Aliah University" at the Quantum group (QuNB), Department of Chemistry, University of New Brunswick, Canada on 30th June, 2022.
Scientific paper reviewer
Physica Scripta (Publisher: IOP Publishing)
Journal of Theoretical and Applied Physics (Publisher: Springer)
Radiation Effects and Defects in Solids (Publisher: Taylor and Francis)
Indian Journal of Physics (Publisher: Springer)
Physics of Plasmas (Publisher: AIP)
European Physical Journal D (Publisher: Springer)
European Physical Journal Plus (Publisher: Springer)
International Journal of Quantum Chemistry (Publisher: Wiley)
Organizational activities
Convenor of the "Webinar on the occasion of 75 years of Independence of India'' on 14th August, 2022.
Joint convenor of the "Colloquium Lecture 2022: Physics in Bengali'' on the occasion of Matribhasa Diwas on 21th February, 2022.
Organizing committee member of the "Colloquium Lecture 2021: Photon Photon interactions in a Quantum Non-linear Media'' on 23rd December, 2021.
Secretary of the “International seminar on the Contemporary research topics in Physics” held at the Department of Physics, Aliah University on 6th August, 2019.
Co-convenor of the “National Conference on Atomic, Molecular and Nano Sciences (NCAMNS-2019)” held at the Department of Physics, Aliah University during 3rd and 4th April, 2019.
Convenor of the WBDST sponsored “One day seminar on the Frontiers of Light-Matter Interactions” held at the Department of Physics, Aliah University on 14th January, 2019.
Co-convenor of the “One day seminar on the 125th Birth Anniversary of Prof. Satyendra Nath Bose” held at the Department of Physics, Aliah University on 29th November, 2018.
