IISER Tirupati

Announcements

IISER Tirupati is notified for exemption u/s 80G(2)(a)(iiif) of the I.T.Act, 1961 IISER Tirupati is notified by the Govt of India for approval u/s 35(1)(ii) of the I.T.Act, 1961 OFFICE MEMORANDUM - GRIEVANCE REDRESSAL FOR STUDENTS Institute Health Advisory Guidelines OFFICE ORDER - Important Advisory on COVID-19 dt 19/03/2020. OFFICE ORDER - Important Advisory on COVID-19 dt 16/03/2020. ICT Initiatives of MHRD & UGC

S. Sunil Kumar

Assistant Professor

Department of Physics, IISER Tirupati

Email: sunil@iisertirupati.ac.in

Phone: +91 877 2500 449

Group Webpage

Research Interests

Atomic & Molecular Physics [Laboratory Astrophysics, Laboratory Astrochemistry, and Molecular Biophysics]

Physics of atomic/molecular ions of astrophysical, biological, and fundamental interest
Spectroscopy of trapped and cooled atomic/molecular ions
Experimental/theoretical investigations of quantum collisions involving atoms, molecules, and their ions
Quantum chemistry of ion-neutral reactions of astrophysical relevance

Educational and Professional Career

Ph.D. (Aug 2005 - Nov 2009): Indian Institute of Technology Madras, Chennai, India
Postdoc (Nov 2009 - Oct 2012): University of Paris South XI, Paris, France
Postdoc (Jan 2012 - Oct 2014): University of Innsbruck, Innsbruck, Austria
Postdoc (Nov 2014 - May 2017): Max Planck Institute for Nuclear Physics, Heidelberg, Germany
Assistant Professor (12 June 2017 ~): Indian Institute of Science Education and Research (IISER) Tirupati, India

Honours and Awards

DST-SERB Core Research Grant (Started from 22 March 2022)
DST-SERB Early Career Research Award (03 November 2018 - 02 May 2022)
2009-2010 best thesis award from the Department of Physics at IIT Madras

Selected Publications

Gayathry Rajeevan, Salvi Mohandas, and S Sunil Kumar, Numerical simulations of storage and thermometry of small biomolecular ions in a 16-pole ion trap and a 16-wire ion trap, Phys. Scr. 96, 124001 (2021).
D. Müll, F. Grussie, K. Blaum, S. George, J. Göck, M. Grieser, R. von Hahn, Z. Harman, Á. Kálosi, C. H. Keitel, C. Krantz, C. Lyu, O. Novotný, F. Nuesslein, D. Paul, V. C. Schmidt, S. Singh, S. Sunil Kumar, X. Urbain, A. Wolf, and H. Kreckel, Metastable states of Si^- observed in a cryogenic storage ring, Phys. Rev. A 104, 032811 (2021).
M. Gopu, S. Rathod, U. Namangalam, R. K. Pujala, S. Sunil Kumar, and D. Mampallil, Evaporation of Inclined Drops: Formation of Asymmetric Ring Patterns, Langmuir 36, 8137 (2020).
Salvi M., Raghunath O. Ramabhadran, and S. Sunil Kumar, Theoretical Investigation of a Vital Step in the Gasphase Formation of Interstellar Ammonia: NH₂⁺ + H₂ → NH₃⁺ + H, J. Phys. Chem. A 124, 8373, (2020).
S. Spieler, C. H. Duong, A. Kaiser, F. Duensing, K. Geistlinger, M. Fischer, N. Yang, S. Sunil Kumar, M. A. Johnson, and R. Wester, "Vibrational Predissociation Spectroscopy of Cold Protonated Tryptophan with Different Messenger Tags, J. Phys. Chem. A 122, 8037 (2018).
S. Sunil Kumar, Grussie, F., Suleimanov, Y. V., Guo, H. and Kreckel, H., " Low temperature rates for key steps of interstellar gas-phase water formation", Sci. Adv. 4, eaar3417 (2018).
S. Sunil Kumar, B. Lucas, J. Fayeton, D. Scuderi, I. Alata, M. Broquier, K. Le Barbu-Debus, V. Lepére, and A. Zehnacker, "Photofragmentation mechanisms in protonated chiral cinchona alkaloids", Phys. Chem. Chem. Phys. 18, 22668 (2016).
D. Hauser, S. Lee, F. Carelli, S. Spieler, O. Lakhmanskaya, E. S. Endres, S. Sunil Kumar, F. Gianturco, and R. Wester, "Rotational state-changing cold collisions of hydroxyl ions with helium", Nat. Phys. 11, 467 (2015).
S. Sunil Kumar, D. Hauser, R. Jindra, T. Best, Š. Roučka, W. D. Geppert, T. J. Millar, and R. Wester, "Photodetachment as a destruction mechanism for CN^– and C₃N^– anions in circumstellar envelopes", ApJ 776, 25 (2013).
S. Sunil Kumar, M. Pérot-Taillandier, B. Lucas, S. Soorkia, M. Barat, and J. A. Fayeton, "UV photodissociation dynamics of deprotonated 2'-deoxyadenosine 5'-monophosphate [5'-dAMP-H]^–" , J. Phys. Chem. A 115, 10383 (2011).

Teaching

PHY 311: Quantum Mechanics I [Aug-Nov, 2017]
PHY 212: Undergraduate Lab ( Lab III, 2^nd year) [Aug-Nov, 2017]
PHY 324: Optics (Shared course) [Jan-April, 2018]
PHY 325: Advanced Physics Lab-Optics (3^rd year) [Jan-April, 2018]
PHY 313: Quantum Mechanics I [Aug-Nov, 2018]
PHY 415: Advanced Physics Lab - At. Mol. Phys. & Cond. Mat. Phys.( Lab VI,4^th year) [Aug-Nov, 2018]
PHY 323: Optics (Shared course) [Jan-April, 2019]
PHY 325: Advanced Physics Lab-Optics (3^rd year) [Jan-April, 2019]
PHY 313: Quantum Mechanics I [Aug-Nov, 2019]
PHY 415: Advanced Physics Lab - At. Mol. Phys. & Cond. Mat. Phys.( Lab VI,4^th year) [Aug-Nov, 2019]
PHY 323: Optics (3^rd year BSMS, 1^st year I-PhD, PhD) [Jan-April, 2020]
PHY 222: Undergraduate Lab (Lab IV, 2^nd year) [Jan-April, 2020]
PHY 413/713: Atomic and Molecular Physics (4^rd year BSMS, 2^nd year I-PhD, PhD) [Aug-Nov, 2020]

Open Positions

No open position is available at present.

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