Sonjoy Majumder Associate Professor, Department of Physics, Indian Institute of Technology, Kharagpur-721302 ********************************************************************************** Gender: Male Date-of-Birth: 1 st January, 1971 E-Mail: sonjoym@phy.iitkgp.ernet.in, sonjoy@gmail.com Academic Qualification: Degree Year Class/Division Institute B.Sc 1991 2nd Calcutta University, Kolkata M.Sc 1993 1st IIT-Kharagpur, West Bengal PhD 2001 Indian Institute of Astrophysics, Bangalore PhD: Study of Atomic and Molecular Many Body Processes in Astrophysics, Indian Institute of Astrophysics, Bangalore, India under Prof. Bhanu Pratap Das (2001) Professional Experience: Institution Indian Institute of Astrophysics, Bangalore 2001-2002 SRF Position Haris-chandra Research Institute, Allahabad 2002-2002 Post Doctoral Fellow Technical University of Munich, Germany 2003-2004 Post Doctoral Fellow Institute for Nano-Technology, FZK, Germany 2004-2005 Post Doctoral Fellow Indian Institute of Technology, Madras, India 2005-2007 Assistant Professor Indian Institute of Technology, Kharagpur, India 2007-2013 Assistant Professor Indian Institute of Technology, Kharagpur, India 2013-Present Associate Professor Specialization and Expertise : Specialization: Quantum Optics, Atomic and molecular physics Expertise: Expert in quantum many-body methods, Programming Guidance: Completed On-going PhD 4 5 MSc/MTech 30 3 Others (UG Intern) 20 0
Research Interest & Objectives: Quantum many-body theories have been extensively used in our research works applied in atomic, molecular and ultra-cold microscopic particles. i) Thrust has been always for precise estimations of physical properties of the above areas with correlation exhaustive many- body methods with sophisticated numerical and computational techniques. Over last couple of years, my research is mostly focused on the interaction of cold atoms and molecules with light, specially optical vortex. Our highly cited recent work on the transfer mechanism of orbital angular momentum from light to cold matter motivates few experiments by world leading groups and opened up new avenue to quantum technologies, like quantum communication, quantum memory and quantum computations. Our proposed experimental scheme to estimate the value and orientation of matter vortex without collapsing the total condensate state and commute plus storing information through cold Rydberg atoms are few of our highlighting research contributions. ii) Precision estimations of fundamental constants of nature, like, different electromagnetic and weak nuclear moments, weak charge using electronic transitions in Atoms and molecules are few other major areas of my research activities to probe the standard model of particle physics as well as precision improvement of atomic/molecular clocks. iii) Estimating the astrophysical abundances of atomic and molecular species in both neutral or ionic forms using the precise electronic transitions are the other avenues of my research. iv) I have very clear career vision in Quantum Optics and Technologies. We have recently proposed a noble technique to trap atoms inside photonics crystal using waveguide. We would like to exploit strong dipole-dipole interaction among Rydberg atoms to communicate quantum information. These informations can be embedded in normal Gaussian light or in electrons. These projects have long sighted goal with stable optical vortex or with electron vortex. One can fore these as quantum circuit, bus and memory for the proposed quantum computer. Publication in Refereed Journals: 1) Electron-correlation study of Y III-Tc VII ions using a relativistic coupled-cluster theory A Das, A Bhowmik, Journal of Physics B: Atomic, Molecular and Optical Physics, Accepted, DOI: 10.1088/1361-6455/aa9955 (2017) 2) Interaction of a Laguerre Gaussian beam with trapped Rydberg atoms
K Mukherjee, S Majumder, PK Mondal, B Deb Journal of Physics B: Atomic, Molecular and Optical Physics 51 (1), 015004 (2017) 3) Study of density structures of two-component Bose-Einstein condensates and its interaction with Laguerre-Gaussian Beam A Bhowmik, PK Mondal, S Majumder, B Deb, Journal of Physics B: Atomic, Molecular and Optical Physics, Accepted, arxiv:1708.06170 (2017) 4) Tunable magic wavelengths for trapping with focused Laguerre-Gaussian beams A Bhowmik, N D Dutta, S Majumder, Submitted Phys. Rev. A, arxiv:2105758 (2017) 5) Study of coupled-cluster correlations on electromagnetic transitions and hyperfine structure constants of W VI A Bhowmik, S Roy, Journal of Physics B: Atomic, Molecular and Optical Physics 50 (12), 125005 (2017) 6) Interaction of atom with nonparaxiallaguerre-gaussian beam: Forming superposition of vortex states in Bose-Einstein condensates A Bhowmik, PK Mondal, S Majumder, B Deb Physical Review A 93 (6), 063852 (2016) 7) Ab initio calculations of spectroscopic properties of Cr5+ using coupled-cluster theory Indian Journal of Physics 90 (4), 373 (2016) 8) Precise many-electron calculations of isotope shift for alkali like atoms or ions S Roy, A Bhowmik, S Majumder Asian Journal of physics 25 (9), 1103 (2016) 9) Optical manipulation of matter-wave vortices: An analog of circular dichroism PK Mondal, B Deb, S Majumder Physical Review A 92 (4), 043603 (2015) 10) Ab initio estimations of the isotope shift for the first three elements of the K isoelectronic sequence S Roy, S Majumder Physical Review A 92, 012508 (2015) 11) E 1 parity-nonconserving transition amplitudes of the hyperfine components for 2 S 1/2 2 D 3/2 transitions of 137 Ba+ and 87 Sr+ Physical Review A 90 (1), 012522 (2014)
12) Angular momentum transfer in interaction of Laguerre-Gaussian beams with atoms and molecules PK Mondal, B Deb, S Majumder Physical Review A 89 (6), 063418 (2014) 13) Relativistic coupled-cluster calculations on hyperfine structures and electromagnetic transition amplitudes of In iii S Roy, Physical Review A 89 (4), 042511 (2014) 14) Electron-correlation trends in the hyperfine A and B constants of the Na isoelectronic sequence Physical Review A 88 (6), 062507 (2013) 15) Effect of screening on spectroscopic properties of Li-like ions in a plasma environment PK Mondal, NN Dutta, G Dixit, S Majumder Physical Review A 87 (6), 062502 (2013) 16) Ab initio calculations of transition amplitudes and hyperfine A and B constants of Ga III NN Dutta, S Roy, G Dixit, S Majumder Physical Review A 87 (1), 012501 (2013) 17) Ab initio studies of electron correlation and Gaunt interaction effects in the boron isoelectronic sequence using coupled-cluster theory Physical Review A 85 (3), 032512 (2012) 18) Accurate Estimations of Stellar and Interstellar Transition Lines of Triply Ionized Germanium The Astrophysical Journal 737 (1), 25 (2011) 19) Ab initio calculations of oscillator strengths and lifetimes of low-lying states in Mo VI NN Dutta, G Dixit, BK Sahoo, S Majumder; arxiv preprint arxiv:1007.5389 (2010) 20) Relativistic ab initio spectroscopy study of forbidden lines of singly ionized zinc G Dixit, BK Sahoo, RK Chaudhuri, S Majumder Journal of Physics B: Atomic, Molecular and Optical Physics 42 (16), 165702 (2009) 21) Reply to the comment on Theoretical spectroscopic studies of the atomic transitions and lifetimes of low-lying states in Ti IV G Dixit, S Majumder Journal of Physics B: Atomic, Molecular and Optical Physics 42 (8), 088002 (2009) 22) Theoretical spectroscopic studies of the atomic transitions and lifetimes of low-lying states in Ti IV S Mandal, G Dixit, BK Sahoo, RK Chaudhuri, S Majumder
Journal of Physics B: Atomic, Molecular and Optical Physics 41 (5), 055701 (2008) 23) Ab initio relativistic many-body calculation of hyperfine splittings of Cd 113+ G Dixit, HS Nataraj, BK Sahoo, RK Chaudhuri, S Majumder Physical Review A 77 (1), 012718 (2008) 24) Relativistic calculations of the lifetimes and hyperfine structure constants in 67Zn+ G Dixit, HS Nataraj, BK Sahoo, RK Chaudhuri, S Majumder Journal of Physics B: Atomic, Molecular and Optical Physics 41 (2), 025001 (2008) 25) Erratum: Ab initio calculations of forbidden transition amplitudes and lifetimes of the low-lying states in V 4+[Phys. Rev. A76, 042505 (2007)] G Dixit, BK Sahoo, RK Chaudhuri, S Majumder Physical Review A 76 (5), 059901 (2007) 26) Ab initio calculations of forbidden transition amplitudes and lifetimes of the low-lying states in V 4+ G Dixit, BK Sahoo, RK Chaudhuri, S Majumder Physical Review A 76 (4), 042505 (2007) 27) Accurate estimates of circumstellar and interstellar lines of quadruply ionized vanadium using the coupled cluster approach G Dixit, BK Sahoo, PC Deshmukh, RK Chaudhuri, S Majumder The Astrophysical Journal Supplement Series 172 (2), 645 (2007) 28) Rigorous ab initio study of Allowed and Forbidden transition amplitudes of Tl2+ G Dixit, PC Deshmukh, S Majumder Journal of Physics: Conference Series 80 (1), 012048 (2007) 29) Many-body effects in hyperfine interactions in 205 Pb+ S Majumder, BK Sahoo, RK Chaudhuri, BP Das, D Mukherjee The European Physical Journal D-Atomic, Molecular, Optical and Plasma 41 (3), 441 (2007) 30) Ab initio calculations of Stark induced electric dipole transition amplitudes of singly ionized calcium GB Pradhan, G Dixit, PC Deshmukh, S Majumder Journal of Physics: Conference Series 80 (1), 012052 (2007) 31) Nonreactive Ion Processes. BK Sahoo, S Majumder, H Merlitz, R Chaudhuri, BP Das, D Mukherjee Mass spectrometry bulletin 40 (2), 104 (2006) 32) Electric dipole transition amplitudes for 207Pb+ BK Sahoo, S Majumder, H Merlitz, R Chaudhuri, BP Das, D Mukherjee Journal of Physics B: Atomic, Molecular and Optical Physics 39 (2), 355 (2005)
33) Efficient treatment of the Hartree interaction in the relativistic Kohn-Sham problem AV Matveev, S Majumder, N Rösch The Journal of chemical physics 123 (16), 164104 (2005) 34) Ab initio determination of the lifetime of the 62P3/2 state for 207Pb+ by relativistic many-body theory BK Sahoo, S Majumder, RK Chaudhuri, BP Das, D Mukherjee Journal of Physics B: Atomic, Molecular and Optical Physics 37 (17), 3409 (2004) 35) Theoretical studies of electric quadrupole transition probabilities in Mg II S Majumder, G Gopakumar, RK Chaudhuri, BP Das, H Merlitz,... The European Physical Journal D-Atomic, Molecular, Optical and Plasma, 28 (1), 3 (2004) 36) Spin orbit interaction in the Douglas Kroll approach to relativistic density functional theory: the screened nuclear potential approximation for molecules S Majumder, AV Matveev, N Rösch Chemical physics letters 382 (1), 186-193 (2003) 37) Influence of correlation effects on the magnetic dipole hyperfine interaction in the low-lying states of Ca+ BK Sahoo, RK Chaudhuri, BP Das, S Majumder, H Merlitz, US Mahapatra,... Journal of Physics B: Atomic, Molecular and Optical Physics 36 (10), 1899 (2003) 38) Accurate calculations of interstellar lines of Mg+ using the coupled cluster approach S Majumder, H Merlitz, G Gopakumar, BP Das, US Mahapatra,... The Astrophysical Journal 574 (1), 513 (2002) 39) Relativistic coupled cluster calculations using hybrid basis functions S Majumder, G Gopakumar, H Merlitz, BP Das Journal of Physics B: Atomic, Molecular and Optical Physics 34 (23), 4821 (2001) 40) Ionization potential and excitation energy calculations for Ba+ using the relativistic coupledcluster method G Gopakumar, H Merlitz, S Majumder, RK Chaudhuri, BP Das,... Physical Review A 64 (3), 032502 (2001) 41) Atomic and molecular structure and dynamics-ionization potential and excitation energy calculations for Ba+ using the relativistic coupled-cluster method G Gopakumar, H Merlitz, S Majumder, RK Chaudhuri, BP Das,... Physical Review A-Atomic Molecular and Optical Physics 64 (3), 32502-32502 (2001) 42) Relativistic magnetic quadrupole transitions in Be-like ions S Majumder, BP Das Physical Review A 62 (4), 042508 (2000)
43) Determination of conformational energy differences of propynlidyne isomers using the effective valence shell Hamiltonian method RK Chaudhuri, S Majumder, KF Freed The Journal of Chemical Physics 112 (21), 9301-9309(2000) 44) Excitation energies and oscillator strengths of Ca I using multireference many-body perturbation theory S Majumder, BP Das, RK Chaudhuri Physical Review A 59 (5), 3432 (1999) 45) Photometry of Solar Corona to Study the Coronal Structures P Chakraborty, K Sankarasubramanian, S Majumder, K Rajesh Nayak,... Kodaikanal Observatory Bull., 13, 69 (1997) Publication/Seminar in Conferences: 1) Transfer of Orbital and Spin angular momentum from non-paraxial optical vortex to atomic BEC, A Bhowmik, PK Mondal, S Majumder, B Deb; Bulletin of the American Physical Society, 48 th Annual Meeting of APS Division of Atomic, Molecular and Optical Physics, 62 (8), D1.00192 (2017) 2) Interaction of trapped Rydberg atoms with optical vortex, Discussion meeting on Quantum Optics and Quantum Technology, RCAMOS, IACS, Jun-5-7 (2017) 3) Relativistic correction of isotope shift in the framework of relativistic coupled cluster method, Recent Advances in Many Electron Theories (RAMET-2017), Goa, Feb. 9-12 (2017) ******There are many more in between *************** 4) Variation of fine structure constant and nuclear size from isotope shift of Group III elements, S Roy and S Majumder, Proceedings of fourth international conference on current developments in atomic, molecular, optical and nano-physics with applications, INIS vol, 47058379 (2015) ******There are many more in between *************** 5) Electron Many-Body Studies of Triply Ionized Lanthanide Elements Doped in Bulk-and Nano-Materials GB Pradhan, G Dixit, B Tiwari, S Majumder, Advances in Atomic, Molecular and Optical Science, Ed. by E. Krishnakumar, Allied Publishers, New Delhi 113-116 (2008) 6) Large Scale ab-initio Coupled Cluster Calculations on Allowed and Forbidden Transitions and Hyperfine Constants of Doubly Ionized Thallium by Gopal Dixit, P. C. Deshmukh and Sonjoy Majumder AISAMP VII, Chennai... (2006) 7) Stark-Induced Transitions between Same by GaganBihariPradhan, Gopal Dixit, P. C. Deshmukh and Sonjoy Majumder AISAMP VII, Chennai.. (2006) 8) Highly correlated calculations of Stark induced E1 transitions of doubly ionized Thallium by Gopal Dixit, GaganBihariPradhan, P. C. Deshmukh and Sonjoy Majumder NACAMP XVI, TIFR, Mumbai.. (2007) 9) Electron many-body studies of triply ionized lanthanide elements doped in nanomaterial by Gopal Dixit, P. C. Deshmukh and Sonjoy Majumder NACAMP XVI, TIFR, Mumbai Invited Talk... (2007) 10) Extensive computation of allowed and forbidden transition probabilities in the potassium isoelectronic sequence by Gopal Dixit, P. C. Deshmukh, Steven T. Manson and Sonjoy Majumder, APS, DAMOP Alberta, Canada.. (2007) 11) Electron many-body studies of triply ionized lanthanide elements doped in nanomaterial by Gopal Dixit and Sonjoy Majumder ICCAMP, Jaipur (2007) Book Chapters: 1) Electron Many-Body Studies of Triply Ionized Lanthanide Elements Doped in Bulk-and Nano- Materials GB Pradhan, G Dixit, B Tiwari, S Majumder, Advances in Atomic, Molecular and Optical Science, Ed. by E. Krishnakumar, Allied Publishers, New Delhi 113-116 (2008)
Copyright: 1) PARAGAUSS version 4.0 T Belling, T Grauschopf, S Krüger, F Nörtemann, M Staufer, M Mayer, VA Nasluzov, U Birkenheuer, A Hu, AV Matveev, A Shor, M Fuchs-Rohr, KM Neyman, DI Ganyushin, T Kerdcharoen, A Woiterski, S Majumder, AB Gordienko, M HuixiRotllant, R Ramakrishnan, G Dixit, A Nikodem, TM Soini, M Roderus, N Rösch Sponsored Research and Consultancy Undertaken Desig nation Project Name Sponsored by Duratio n Project Value (Lakhs Rupees) Electron Impact Ionization in Atoms IC& SR, IITM 24 15 Applications of Relativistic Many-Body Theory in Atomic DST 18 28 Co- and Molecular Structure and in Spectroscopic Studies The Theory of Electron Correlation and its Applications in Molecular and Nanoscience Theoretical study of hyperfine interaction in heavy atoms and molecules for quantum computing and freq. std. Calculating Vibrational Spectra of Molecular Systems: Method Development for the Density Functional Program PARAGAUSS and Applications Study of hyperfine structure & isotope shift of isotopes using relativistic highly correlated many-body theory FIST Project To strengthen the post-graduate teaching and research facilities in the department Nonequilibrium dynamics of ultracold binary bosonic gases confined in a composite potential landscape (Submitted) Transportation of entanglement through Rydberg atoms trapped in Photonic Lattice (Submitted) Indo-Hungarian Int-Govt. S&T 36 10 ISIRD-IITKGP 36 3 DAAD 24 18 BRNS 48 16.7 DST 60 365 DAAD 24 19 DST 60 705