PROF. (DR.) DEBASHIS GANGOPADHYAY

Advisor - School of Science & Technology, Professor - Department of Physics

Ph. D. (1988): Saha Institute of Nuclear Physics, Kolkata, India

Email: debashis.g@snuniv.ac.in

Debashis Gangopadhyay is a home-bred theoretical physicist who puts into practice the academic ideals and morals he imbibed from Kolkata-based international class excellence as embodied in the ersonalities of Prof. Amal Kumar Raychaudhuri, Prof. Chanchal Kumar Majumdar, Prof. Manoj Kumar Pal and Prof. Ashok Chatterjee (his thesis advisor). Teaching and research are two principal ingredients of his academic livelihood and he constantly upgrades himself in these areas. His research area covers a wide landscape in quantum field theory that includes lattice gauge theories, stochastic quantisation, string theory, quantum groups, Fermi liquids and field theory based cosmology. Currently he is deeply into quantum computation and information theory and Artificial Intelligence based quantum theories Area of Research: Quantum Field Theory, Cosmology, Quantum Computation and Information

Employment / Education / Miscellaneous :

• Faculty (1st March 2020 onwards) : Dept.Of Physics, Sister Nivedita University, Kolkata

• Faculty ( 1st Jan 2012- 30th April 2020): Ramakrishna Mission Vivekananda Educational and Research Institute, Belur Matth, Howrah

• Faculty (18th July 1991- 31st Dec. 2011): S. N. Bose National Centre for Basic Sciences, Kolkata, India

• Postdoctoral Fellow (1989-1991): Bogolubov Laboratory of Theoretical Physics, Joint Institute of Nuclear Research, Dubna, Moscow, Russia

• Postdoctoral Fellow (1987-1989): Institute of Physics, Bhubaneswar, India

• Lecturer in Physics (1986-1987): Head, Department of Physics, College of Textile Technology, Berhampore, Murshidabad, India

• Ph. D. (1988): Saha Institute of Nuclear Physics, Kolkata, India

Thesis title : Some studies in recent developments in quantum field theory

• M.Sc. (Physics, First Class)(1977): University of Calcutta, Kolkata, India

• B.Sc. (Physics Hons., First Class)(1975): Presidency College, University of Calcutta, Kolkata, India

• Indian School Certificate (First Division) (1972), Calcutta Boys' School, University of Cambridge Local Examinations Syndicate

• National Scholarship (1972)

• National Science Talent Search Scholarship (1972 – 1977)

• Nominated life member : Baba Alauddin Khan Memorial Committee (founded by Srimati

Annapurna Devi , Ustad Ali Akbar Khan & Pandit Ravi Shankar )

TEACHING :

S. N.Bose National Centre for Basic Sciences/ RKMVERI / SNU / Calcutta University) (Visiting) /

Tripura University (Visiting) / University of Auckland (Visiting)

Physics Core and Advanced Courses at Master’s level:

Classical Mechanics , Statistical mechanics, Electrodynamics, Quantum Mechanics,

Nuclear and Particle Physics, Quantum field theory, General theory of Relativity,

Quantum Computation and Information Theory

Generic Elective courses at Master’s level for students whose Major is NOT Physics:

The Mysterious Universe ( A 4 credit course summarising Particle Physics and Cosmology )

Science in History (A 4 credit course summarising the contributions to science by communities in the

geographical locations of India, China, Japan, Middle East, South East Asia and South America)

Quantitative Finance ( A 4 credit course on techniques of Physics and Mathematics used in modern finance)

Quantum Computation and Information Theory ( A 4-credit introductory course for non-Physics Majors)

Selected Publications

• Teleportation with non-maximally entangled states and underlying unitary algebras of certain

bipartite systems , P. Dasgupta and D. Gangopadhyay, arXiv:2505.21084 [quant-ph] (2025)

• From geometry to observation: gravitational waves and the Raychaudhuri equation, Sougata Bhunia,

Anubhab Dutta, Debashis Gangopadhyay, Goutam Manna, Physics of the Dark Universe V50,

102089 , (2025) (The fundamental theoretical basis of this paper is Anubhab Dutta’s SNU MSc 4th

semester project work. The external collaborators supplied the observational data that supported the

predictions from the theoretical project work).

• Non -affine extensions of the Raychaudhuri equation in the K-essence framework, Samit Ganguly,

Goutam Manna, Debashis Gangopadhyay, Eduardo Guendelman, Abhijit Bhattacharyya,

Physics Letters B868 , 139622, (2025)

• NEC violation in f(R,T) gravity in the context of a non-canonical theory via modified Raychaudhuri

equation, Arijit Panda, Debashis Gangopadhyay, Goutam Manna , Astroparticle Physics 165 ,

103059 (2025) (available online https://doi.org/10.1016/j.astropartphys.2024.103059)

• Form Invariance of Raychaudhuri equation in the presence of Inflaton-type fields,

Arijit Panda, Debashis Gangopadhyay, Goutam Manna , Fortschr. Phys. 2024 , 2400134 (2024)

• An Accelerated Universe with Negative Equation of state parameter in Inhomogeneous Cosmology

with k-essence Scalar field, Somnath Mukherjee and Debashis Gangopadhyay,

Physics of the Dark Universe 32, 100800, (2021)

• F(R) Gravity with k-essence Scaling Relation and Cosmic Acceleration, Somnath Mukherjee and

Debashis Gangopadhyay, ISSN 2688-8300 (Print) ISSN 2644-3368 (Online),

JMSCM, 1, No.4, (2020)

• Three Flavoured neutrino oscillations and the Leggett Garg Inequality, Debashis Gangopadhyay and

Animesh Sinha Roy, Euro.Phys. Jour. C 77, 260 (2017)

• Semiclassical treatment of k-essence effect on cosmic temperature, Abhijit Bandyopadhyay, Debashis

Gangopadhyay and Arka Moulik, Gravitation and Cosmology 23, 184 (2017)

• The Leggett-Garg Inequality and Page-Wootters Mechanism, Debashis Gangopadhyay and Animesh

Sinha Roy, Euro. Phys. Lett. 116, 40007 (2016)

• The Hawking temperature in the context of dark energy for Reissner-Nordstrom and Kerr

background, G. Manna and Debashis Gangopadhyay, Euro. Phys. Jour. C 74, 2811 (2014)

• Probing the Leggett-Garg Inequality for Oscillating Neutral Kaons and Neutrinos, D.

Gangopadhyay, D.Home, A.Sinha Roy , Phys.Rev. A88 022115 (2013)

• The Hawking temperature in the context of dark energy

Debashis Gangopadhyay and Goutam Manna, Euro.Phys.Lett. 100 49001 (2012)

• The k-essence scalar field in the context of Supernova Ia Observations, Abhijit Bandyopadhyay,

Debashis Gangopadhyay , Arka Moulik, Eur. Phys. Jour. C 72, 1943, (2012)

• Estimating temperature fluctuations in the early Universe, Debashis Gangopadhyay,

Gravitation and Cosmology 16, 231 (2010)

Logarithm of the scale factor as a generalised coordinate in a lagrangian for dark matter and dark

energy, Debashis Gangopadhyay and Somnath Mukherjee, Physics Letters B 665, 121 (2008)

• The CNOT quantum logic gate using q-deformed oscillators, Debashis Gangopadhyay,

Int. Jour. Quant. Inform. 6, 471 (2008)

• Evolution of primordial black holes in Jordan-Brans-Dicke Cosmology- A.S. Majumdar, Debashis

Gangopadhyay, L.P.Singh, Monthly Notices of the Royal Astronomical Society 385 1467 (2008)

• Spacetime Dependent Lagrangians and Electrogravity Duality- Debashis Gangopadhyay,

R.Bhattacharjee, L.P.Singh, Gravitation and Cosmology, 13 , 285 (2007)

• Quantum Logic Gates with q-Deformed Oscillators- Debashis Gangopadhyay & M.N. Sinha Roy,

Int. Jour. Quant. Inform. 4 297 (2006)

• Growth Models and Models of Turbulence: A Stochastic Quantisation Perspective- H.S.Samanta,

J.K.Bhattacharjee, Debashis Gangopadhyay, Phys. Lett. A353 113 (2006)

• Vacuum expectation value of the Higgs Field and Dyon Charge Quantisation from Spacetime

Dependent Lagrangians- R.Bhattacharyya and D.Gangopadhyay, Mod.Phys Lett . A18 1 (2003)

• Spacetime Dependent Lagrangians and Weak-Strong Duality : Sine-Gordon and Massive Thirring

Models- R.Bhattacharyya and D.Gangopadhyay, Mod.Phys.Lett. A17 729 (2002)

• Duality in Equations of Motion from Spacetime Dependent Lagrangians- R. Bhattacharyya and D.

Gangopadhyay, Modern Physics Letters A15 901 (2000)

• Duality invariance of cosmological solutions with torsion, Debashis Gangopadhyay and S. Sengupta,

Int. Jour. Mod. Phys. A 14, 4953 (1999)

• Van der Waerden’ s Colouring Theorem and Classical Spin Systems - R.Chaudhury, D.

Gangopadhyay and S. K. Paul, Mod. Phys. Lett. B11 923 (1997)

• Interacting Fermions , Scaling and Possible Departure From Fermi Liquid Behaviour- R.

Chaudhury and D. Gangopadhyay, Mod. Phys. Lett.. B9 1657 (1995)

• Quantum Discrete Gauge Models with Bosonic and Fermionic Degrees of Freedom - A.T.

Filippov , D. Gangopadhyay and A. P. Isaev, Int. Jour. Mod. Phys. A7 2487 (1992)

• Discrete “Strings” and Gauge Model of Three Confined Relativistic Particles - A.T. Filippov ,

D. Gangopadhyay and A.P. Isaev , Int. Jour. Mod. Phys. A7 3639 (1992)

• On canonical q-transformations with two q-oscillators, Debashis Gangopadhyay, Mod. Phys. Lett.

A 31, 2909 (1991)

• Harmonic Oscillator Realisation of the Canonical q-Transformation - A.T. Filippov, D.

Gangopadhyay and A.P.Isaev, Jour. Phys. A24 L63 (1991)

• On the Harmonic Oscillator Realisation of q-Oscillators- D. Gangopadhyay and A.P. Isaev, JINR

Rapid Comm.45 35 (1990)

• Gauge fixing for linearized gravity and antisymmetric tensor fields, Debashis Gangopadhyay,

Int. Jour. Mod. Phys. A 5, 2145 (1990)

• Fujikawa-type formulation of gauged BRST symmetry for the free Bosonic string, Debashis

Gangopadhyay and L. P. Singh, Phys. Rev. D (Rapid Comm.) 38, 2652 (1988)

• Functional Stochastic Quantisation Of Gauge Theories- A.Chatterjee and D. Gangopadhyay,

Jour.Phys.G13 L97 (1987)

• Functional Stochastic Quantisation and Perturbation Theory- Debashis Gangopadhyay, A.

Chatterjee and P. Mazumdar Jour.Phys. G12 L1 (1986)

• Factorisation in Large-N Limit of Lattice Gauge Theories Revisited- A. Chatterjee and D.

Gangopadhyay, Pramana 21 385 (1983)

Other Selected Publications:

(1) NA HOY NISHUPTI : a book of Bengali poetry, Subarnarekha Publishers (2009).

(2) All is not well with higher education in India : The Telegraph, Calcutta 10th July 2012 (op-ed) .

https://www.telegraphindia.com/opinion/all-is-not-well-with-higher-education-in-india/cid/404965

(3) The menace of destructive education policies : The Telegraph, Calcutta 12th July 2012 (op-ed) .

https://www.telegraphindia.com/opinion/the-menace-of-destructive-education-policies/cid/404923

(4) Growing Strong : The Telegraph, Calcutta 16th October 2014 (Fifth Column) .

(5) In the Shadows : The Telegraph, Calcutta 1st April 2019 (Fifth Column) .

https://www.telegraphindia.com/opinion/bibha-chowdhuri-donna-strickland-jocelyn-bell-burnell-the-

invisible-women-in-science/cid/1687897

(6) Powers To Reckon With :The Telegraph, Calcutta 20th June 2019, (Book Review).

https://www.telegraphindia.com/culture/books/women-scientists-who-changed-the-world/cid/1691150

PhD students:

(1) Rajsekhar Bhattacharyya (Ph. D. Jadavpur University), Thesis title: “Studies on recent development in

non-perturbative aspects of gauge theories” ( Quantum field Theory)

(2) Goutam Manna (Ph. D. Calcutta University), Thesis title: “Some studies in emergent gravity and k-

essence ” (Cosmology and Quantum field Theory)

(3) Somnath Mukherjee (Ph. D. Jadavpur University), Thesis title: “Some studies on cosmic origins of dark

matter and dark energy” (Cosmology)

(4) Oindrila Ganguly (Ph. D. Calcutta University), Thesis title: “Lorentz invariance violation: a study in the

context of effective theories” (Quantum Field Theory)

(5) Animesh Singha Roy (Ph. D. RKMVERI), Thesis title: “Neutral Kaon Oscillations, Neutrino

Oscillations and the Page-Wootters Mechanism in the light of the Leggett-Garg Inequality” (Quantum

Correlations, Quantum Information)

Current PhD student : Prabal Dasgupta (SNU) (Quantum Computation and Information Theory)

Recent Visiting Summer Internships (Indian Academy of Sciences, Bangalore):

Mr. Praneet Pathak , IIESER, Mohali, May-July 2019;

Mr. Mritunjay Tyagi, Delhi University, June- August 2019 ;

Ms. Ashwini Nagaraj Shenoy (II BE) N.M.A.M. Institute of Technology, Udupi, May-July 2020 ;

Mr. Gaurang Ramakant Kane (II BTech) Indian Institute of Technology, Guwahati, June-August 2020;

Swara Mishra , St. Stepen’s, New Delhi, 2023;

Sagarneel Ghosh , IIT KGP, 2024

Plus 20 other direct summer interns from other universities over the years 2012-2024

Most of the students doing summer projects succeeded in getting PhD scholarships abroad (some in the US

and a majority in Europe) based on their project work only.

Member of Academic / Other Bodies

(1) Member: Government of West Bengal State Council of Science and Technology till 2022

(2) Member: Government of West Bengal Higher Education Advisory Committee till 2016

(3) Member: Governing Council, Institute of Development Studies, Kolkata till 2018

(4) Member: Board of Management, Ramakrishna Mission Vivekananda University till 2018

(5) Member: WB Govt. Pollution Control Board Research and Development Committee ( 2012-present)

(Coordinated experiments on sound pollution to show that noise above 95 decibels for firecrackers is

a health hazard. The National Green Tribunal of the Supreme Court of India upheld the report and

West Bengal was the only state in India where sound of firecrackers could not exceed

95 decibels till 2023.)

Conferences / Seminars: Invited speaker : 16 international and 11 national

Peer Reviewer of International Journals / National Science Boards :

(a) Physics Letters A, B

(b) Euro Physics Letters

(c) Euro Physics Journal C

(d) Journal Of Physics

(e) Modern Physics Letters A, B, D

(f) Science and Engineering Research Board (SERB) Project Reviewer

(g) Dept. of Science and technology (DST) Project Reviewer

Administrative Experience

S.N.Bose National Centre For Basic Sciences

(1) Faculty-in-charge of library: 1995-2002

(2) Chairman of Stock-taking Committee: 1995-2000

(3) Chairman of Office Space Allocation Committee: 1995-2000

(4) Coordinator of Visitor’s Programme : 2006-2008

(5) Faculty-in-charge of library : Nov.2010- Feb.2011

Ramkrishna Mission Vivekananda University (RKMVU/RKMVERI)

• Head, Department of Physics, RKMVU, 2012-2018.

• Set up the first Positional Astronomy Centre in a private university in West Bengal by procuring Rs.

45 project money : computerised Celestron 14" Edge HD Pro telescope, three Celestron 11" Edge

HD CGX telescope, Celestron Travel Scope 50 portable telescope and Celestron Skyprodigy 6 -

Computerized 6" SCT telescope.

• In collaboration with ISRO , was Convenor of Rural Asset Mapping of 45 Gram panchayats in West

Bengal by coordinating the activities of about 100 students of RKMVU through physical visits by the

students to the relevant geographical areas and then uploading of data to the ISRO satellite by the

BHUVAN app using remote sensing technology.

DR. DIBYENDU GHOSH

Head of Department - Physics

Ph.D. in Physics (Jadavpur University, Jadavpur, Kolkata, India.)

Email: dibyendu.g@snuniv.ac.in

EDUCATION
• 2018-2022: Post doctoral Fellow, IACS Kolkata
• 2015-2018: Post doctoral Fellow, IISER Kolkata
• 2015 Ph.D. in Physics
(Jadavpur University, Jadavpur, Kolkata, India.)
• 2010 M. Sc. Degree in Physics
(Guru Ghasidas University, Bilaspur, Chhattisgarh, India)
• 2008 B. Sc. (Honours) Degree in Physics
(The University of Burdwan, Burdwan, West Bengal,
India)

ACADEMIC AWARDS
• Awarded Junior Research Fellowship by Dept. of Science and Technology, Govt. Of India
(2011-13)
• Awarded Senior Research Fellowship by Dept. of Science and Technology, Govt. Of India
(2013-15)
• Qualified National Eligibility Test (NET) Examination (2011).
• Best Poster award in International Conference on Energy Efficient LED Lighting and
Solar Photovoltaic Systems, 27th -29th March 2014, IIT Kanpur, India.
• Post-Doctoral Fellowship (NPDF) by SERB, Dept. of Science and Technology, Govt. Of India
(2016-2018)

RESEARCH INTEREST

• Solar Cell:
  • Organic-inorganic perovskite, All-inorganic perovskite.
  • Perovskite quantum dots, Carbon dot and Graphene dot.
• Photoelectrochemical Water Splitting and CO2 reduction:
  • 2D materials (MoS2, WS2, MoSe2, MXene)
  • Asymmetric materials and Quasi-2D magnets.
• Supercapacitor:
  • Doped Spinel Oxides (Nickel Cobaltite, Fe3O4)
  • Composite Polymers’

TECHNICAL SKILLS
Experimental: I am acquainted with several characterization techniques like XRD, UV-
VIS-NIR spectrophotometer, SEM, TEM, AFM, FTIR, Photoluminescence (PL), RAMAN
spectrophotometer, I-V and C-V measurement, ac and dc conductivity.
My area of expertise in thin film deposition technique are d.c and r.f sputtering, co-
evaporation, electro deposition, chemical vapor deposition (CVD), Sol-gel, chemical bath
deposition (CBD), hybrid wet chemical route, Pulsed laser deposition (PLD) etc. I am also
familiar with Clean Room working condition.
Theoretical: DFT simulation for band structure, EDD plot, spin polarized DFT,
Transition state kinetics

Prof. (Dr.) Partha Sarathi Joarder

Associate Professor - Physics

Ph.D in Solar Magnetohydrodyanamics (MHD)

Email:

Experience in Educational Field:
Worked in the Department of Physics, Bose Institute, Kolkata as Associate Prof. till December, 2018.Assoc. Professor at the Department of Physics, Sister Nivedita University from January, 2019 to present.

Area of Research:
Solar-Terrestrial (ST) Physics, Space Plasma Physics, High Energy Astrophysics

Selected Publications:
1) Multiwavelength analysis of low surface brightness galaxies to studyprobable dark matter signature: P. Bhattacharjee, P. Majumdar, M. Das, S. Das, P.S. Joarder and S. Biswas, Under the process of Revision at the Monthly Notices of Royal Astronomical Society(MNRAS) (2020).
2) Analysis of Fermi-LAT data from Tucana-II: Possible constraints on Dark Matter Models with an intriguing hint of a signal: P. Bhattacharjee, P. Majumdar, S. Biswas and P.S. Joarder, Journal of Cosmology and Astroparticle Physics(JCAP),08 (2019), 028.
3) Constraints on Dark Matter Models from the observation of Triangulum-II with the Fermi Large Area Telescope: S. Biswas, P. Bhattacharjee, P. Majumdar, S. Das, M. Das and P.S. Joarder, JCAP, 11 (2017), 003.
4) Spherical accretionin Giant Elliptical Galaxies: multi transonicity,shocks,and implicationson AGN feed- back: S. Raychaudhuri, S. Ghosh and P.S. Joarder, MNRAS,479 (2018),3011.
5) Multifragmentation model for the production of astrophysical strangelets: S. Biswas, J.N. De, P.S. Joarder, S. Raha and D. Syam, Phys. Rev. C95,(2015) 045201.
6) Multifragmentation model of astrophysical strangelets:S.Biswas,J.N.De,P.S.Joarder,S.RahaandD.Syam, Phys. Letts. B, 715 (2012) 30.
7) Influenceof microscopic particle interaction models on the flux of atmospheric antiprotons: A.Bhadra,B.Bijay,S.K.Ghosh,P.S.JoarderandS.Raha, AstroparticlePhysics, 35 (2012) 277.

Research Interests:
ST Physics, MHD, Hydrodynamic and Cosmic Ray Monte-Carlo Simulation at High Altitude, Analysis of High Energy Gamma Rays. My recent research interest also includes Foundation of Quantum Mechanics, Logic and Philosophy of Science, although I do not yet have any publications in these three areas. PhD students: Joint-Supervisor of Dr. Sayan Biswas (Calcutta University)

Current PhD students:
1. Ms. Sananda Raychaudhuri 2. Ms. Pooja Bhattacharjee 3. Mr. Kaushik Naskar
All registered in University of Calcutta

Prof. (Dr.) Shrabana Chakrabarti

Associate Professor - Physics

PhD

Email: sharbana.cs@snuniv.ac.in

Area of Specialization:
a. Primary: Atomic, Molecular, Quantum and Nonlinear Optics
b. Secondary: Coherent spectroscopy, fast and slow light, atom cooling and trapping

Highest Academic/Professional Qualification:
PhD in experimental physics (2009) from the University of Calcutta

Awards
First prize in the “Colloquium for Young Physicists” organized by the Indian Physical Society at Saha Institute of Nuclear Physics (August 24-25, 2006), Kolkata
Best poster award in DAE-BRNS National Laser Symposium (NLS-4, January 2005), BARC, Mumbai for the poster “Observation of Electromagnetically Induced Transparency in Rubidium D2 Transitions”.

Experience Academic:
Principal Investigator in the DST funded project “Freezing Light in Cold Atoms” at Saha Institute of Nuclear Physics, Kolkata

Experience Research Organization:
Research Associate (2008) – Quantum Optics Group Tyndall National Institute, Cork, Ireland
Postdoctoral Fellow (2008-2010) – Quantum and Nonlinear Optics Group Technical University Darmstadt, Germany
Postdoctoral Fellow (2011-2013) – Quantum Optics Group Technical University Kaiserslautern, Germany
DST Women Scientist (WOS-A) – Applied Nuclear Physics Division (2014 - 2018) Saha Institute of Nuclear Physics, Kolkata

Research and Publications:
List of Publications (In Peer Reviewed Journals)
1. Pulse delay and group velocity dispersion measurement in V-type electromagnetically induced transparency of hot atom, Bankim Chandra Das, Dipankar Bhattacharyya, Arpita Das, Satyajit Saha, Shrabana Chakrabarti and Sankar De
2. Observation and theoretical simulation of dispersive properties of an electromagnetically induced transparent 87Rb atomic medium, Arpita Das, Bankim Chandra Das, Shrabana Chakrabarti, Dipankar Bhattacharyya2 and Sankar De
3. Manipulating cold atoms with optical fibres, Shrabana Chakrabarti, Current Science 112, 1369 (2017)
4. Simultaneous observations of Electromagnetically Induced Transparency (EIT) and Absorption (EIA) in a multi-level V-type system of 87Rb and theoretical simulation of the observed spectra using a multi-mode approach, Bankim Das, Dipankar Bhattacharyya, Arpita Das, Shrabana Chakrabarti, and Sankar De, Journal of Chemical Physics 145, 224312 (2016)
5. Adiabatically driven frequency conversion towards short extreme-ultraviolet radiation pulses , Shrabana Chakrabarti, Holger Muench and Thomas Halfmann, Phys. Rev. A 82, 063817 (2010)
6. Coherent Control of Frequency Conversion towards Short (Picosecond) Vacuum-Ultraviolet Radiation Pulses, H. Münch, S. Chakrabarti, and T. Halfmann, Phys. Rev. A 82, 033821 (2010)
7. Tapered optical fibers as tools for probing magneto-optical trap characteristics, Michael J. Morrissey, Kieran Deasy, Yuqiang Wu, Shrabana Chakrabarti, and Síle Nic Chormaic, Rev. Sci. Inst. 80, 053102-1 (2009).
8. Study of width and height of EIT resonance in a Doppler broadened five-level system with varying probe power, M.M. Hossain, S. Mitra, S. Chakrabarti, D. Bhattacharyya, B. Ray, and P.N. Ghosh, Eur. Phys. J. D 53, 141 (2009).
9. Velocity dependent pump-probe spectroscopy for a five-level system: An application to Rb D2 transitions, Dipankar Bhattacharyya, Amitava Bandyopadhyay, Shrabana Chakrabarti, Biswajit Ray and Pradip N. Ghosh, Chem. Phys. Lett. 440, 24 (2007).
10. Laser frequency stabilization for atom cooling and magnetic field compression of the trap, S. Chakrabarti, A. Ray, A. Bandyopadhyay, D. Bhattacharyya, B. Ray, B. N. Jagatap, K. G. Manohar and P. N. Ghosh, Laser Physics 17, 1 (2007).
11. Velocity selective optical pumping and repumping effects with counter and co propagating laser radiations for D2 lines of rubidium, S. Chakrabarti, B. Ray and P. N. Ghosh, Eur. Phys. J. D 42, 359 (2007).
12. Laser cooling, magneto optic trapping and spectroscopy of Rubidium atoms, Shrabana Chakrabarti, Biswajit Ray and Pradip N. Ghosh, Physics Teacher, 48, 81 (2006).
13. Velocity selective resonances and electromagnetically induced transparency in atomic Rubidium, Shrabana Chakrabarti, Amitkiran Pradhan, Amitava Bandyopadhyay, Ayan Ray, Biswajit Ray, Dipankar Bhattacharya and Pradip N. Ghosh, Indian Journal of Physics 80, 487 (2006).
14. Velocity selective optical pumping effects and electromagnetically induced transparency for D2 transitions in Rubidium, Shrabana Chakrabarti, Amitkiran Pradhan, Biswajit Ray and Pradip N. Ghosh, J. Phys. B: At. Mol. Opt. Phys. 38, 4321 (2005).
15. Velocity-selective resonance dips in the probe absorption spectra of Rb D2 transitions induced by a pump laser, S. Chakrabarti, A. Pradhan, A. Bandyopadhyay, A. Ray, B. Ray, N. Kar and P. N. Ghosh, Chem. Phys. Lett. 399, 120 (2004).
In Conference Proceedings 16. Laser cooling, magneto optic trapping and spectroscopy of Rubidium atoms, Shrabana Chakrabarti, Biswajit Ray and Pradip N. Ghosh, Physics Teacher, 48, pg.81 -86 (2006) 15. Velocity selective resonances and electromagnetically induced transparency in atomic Rubidium, Shrabana Chakrabarti, Amitkiran Pradhan, Amitava Bandyopadhyay, Ayan Ray, Biswajit Ray, Dipankar Bhattacharya and Pradip N. Ghosh, Indian Journal of Physics 80 (5), pg. 487-489 (May 2006).
17. Characterization of a cloud of cold Rubidium atoms – Shrabana Chakrabarti, Amitava Bandyopadhyay, Biswajit Ray and Pradip N. Ghosh, National conference on Atomic and Molecular Physics, Jan 11 – 13, 2007, Tata Institute of Fundamental Research, Mumbai, India
18. Setting up a Magneto Optical Trap to cool Rubidium atoms and characterization of the cloud of cold Rubidium atoms – Shrabana Chakrabarti, Amitava Bandyopadhyay, Dipankar Bhattacharyya, Biswajit Ray and Pradip N. Ghosh, International Conference on Lasers and Nanomaterials, Nov 30 – Dec 2, 2006, Saha Institute of Nuclear Physics, Kolkata, India.
19. High Resolution Laser Spectroscopy and Laser Cooling of Rubidium Vapour – Shrabana Chakrabarti, Indo-French Centre for the Promotion of Advanced Research (IFCPAR) Workshop for young Scientists on Laser Physics and Quatum Optics, January 4-8, 2006, Raman Research Institute, Bangalore, India.
20. Construction of a magneto optical trap (MOT) for confining cold Rubidium atoms – Shrabana Chakrabarti, Ayan Ray, Amitava Bandhyopadhyay, Biswajit Ray, B. N. Jagatap, K. G. Manohar and Pradip N. Ghosh, International Conference on Optics and Optoelectronics, 12 – 15 Dec, 2005, IRDE, Dehradun, India.
21. Observation of electromagnetically induced transparency in Rubidium D2 transitions – Shrabana Chakrabarti, Amitkiran Pradhan, Biswajit Ray and Pradip N. Ghosh, DAE-BRNS National Laser Symposium (NLS-2005) Pg. 634, BARC, Mumbai, India.
22. Veocity selective resonance dips in co propagating pump probe spectroscopy of Rb D2 transitions – Shrabana Chakrabarti, Amitkiran Pradhan, Amitava Bandyopadhyay, Ayan Ray, Biswajit Ray, Nikhilesh Kar and Pradip N. Ghosh DAE-BRNS National Laser Symposium (NLS-2005) Pg. 381, BARC, Mumbai, India.
23. Saturated absorption spectroscopy using co proppagating beams – Shrabana Chakrabarti, Amitkiran Pradhan, Amitava Bandyopadhyay, Ayan Ray, Biswajit Ray and Pradip N. Ghosh, National Symposium on Atomic, Molecular structure, Interactions and Laser Spectroscopy NSAMILS, March 14 -15, 2004, Pg.4, BHU, Varanasi, India.

Current Research Interest:
1. Coherent spectroscopy in room temperature atomic vapour cells : electromagnetically induced transparency and its applications
2. Electromagnetically induced transparency and realization of slow light in cold atoms in a magneto optical trap
3. Coupling cold atoms inside hollow core photonic crystal fiber
4. Econophysics

Dr. Mrinmay Das

Assistant Professor - Physics

PhD (2018): Jadavpur University, M.Sc (2012): Jadavpur University, B.Sc (2010): Jadavpur University

Email: mrinmay.d@snuniv.ac.in

• Senior Project Scientist (2018-2019) – Indian Institute of Technology Delhi
• SERB National Post Doctoral Fellow (N-PDF) (2019-2021) - Indian Association for the Cultivation of Science

Awards, Achievements and Fellowships:

• Secured 3rd Rank in West Bengal Higher Secondary Examination 2007, Conducted by WBCHSE
• DST-INSPIRE Scholarship (2008-2012) from Department of Science and Technology, Government of India
• DST-INSPIRE Fellowship (2013-2018) from Department of Science and Technology, Government of India
• International Travel Support (ITS) to present a paper at the “2017 MRS Fall Meeting & Exhibit” in Boston, Massachusetts, USA, funded by SERB, DST, Government of India
• 1st Prize for Poster award at the International Conference EMCA 2017, 2017, National Institute of Technology (NIT), Durgapur
• SERB-National Post-Doctoral Fellowship (N-PDF) (2019-2021) from SERB, DST, Government of India

Research Project:

Principal Investigator in the SERB-NPDF project “Graphene-inorganic perovskite composite based optoelectronic devices” at Indian Association for the Cultivation of Science

Publications in peer reviewed journals (Indexed in SCI and Scopus): 35

Google Scholar Link: https://scholar.google.co.in/citations?hl=en&user=cXn3lIgAAAAJ

Presentation/participation in conferences/seminars: 15 (International-5, National-10)

Dr. Moumita Deb

Assistant Professor - Physics

Ph.D. in Physics (Science) from Jadavpur University, M.Sc. in Physics from Jadavpur University, B. Sc. in Physics (Hons) from Jadavpur University.

Email: moumita.de@snuniv.ac.in

Area of research:

        5 Publications in Peer reviewed Journals and 3 conference Proceedings.

        Google Scholar link: https://scholar.google.com/citations?user=MWaEzEoAAAAJ&hl=en

• Detection and characterizations for various types of entanglements
• Topological magnon insulating phase detection
• Bond operator formalism
• Spin-wave analysis

Teaching Experience:

• Working as an Assistant Professor in the Department of Physics, Sister Nivedita University from 21.06.2022 till date.
• Worked as an Assistant Professor in the Department of Physics, Brainware University from 09.03.2022 to 20.06.2022.

Additional Grant/Scholarship:

• DST Inspire Scholarship during the tenure of June, 2010 to May, 2014.
• Junior Research Fellowship under the UGC NET from January, 2015 to December, 2016.
• Senior Research Fellowship under the UGC NET from January, 2017 to December, 2019.