SOUMITRA SENGUPTA

Sr. Professor and Dean (Academic & Students Affairs)
DEPARTMENT OF THEORETICAL PHYSICS

E-mail : tpssg [at]  iacs.res.in
Phone : +91-33-24734971, Ext. 284 (Office)
Fax      : +91-33-24732805
 
[pic of Soumitra SenGupta]

Short Bio-data

B. Sc. : Presidency College,Calcutta University
M. Sc. : Science College Calcutta University
Ph. D. : Saha Institute of Nuclear Physics, Calcutta
Sr. Lecturer : Department of Physics, Presidency College, 1993 - 1996
Sr. Lecturer & Reader : Department of Physics,Jadavpur University, 1996-2002
Reader : Department of Theoretical Physics, IACS, 2002 - 2004
Professor : Department of Theoretical Physics, IACS, 2004 - 2008
Sr. Professor : Department of Theoretical Physics, IACS since July, 2008

Fellow : The National Academy of Sciences, India

Current Research Interest:

Extra-dimensional theories, String Theory, Supersymmetry, Supergravity, Braneworld Phenomenology, Cosmology and Blackholes

Selected Publications :

bullet Solutions on a brane in a bulk spacetime with Kalb-Ramond field
Annals Phys. 367, 258, 2016 
bullet Radion vacuum expectation value and graviton mass: a study in an Einstein–Gauss–Bonnet warped geometry scenario
Gen.Rel.Grav. 48, 17, 2016
bullet Effective field equation on m-brane embedded in n-dimensional bulk of Einstein and f(R) gravity
Eur. Phys. J. C 75, 538, 2015 
bullet Can extra dimensional effects allow wormholes without exotic matter?
Phys.Lett. B750,319,2015 
bullet A Geometric Approach to Modulus Stabilization
Phys.Rev. D92, 2, 026008, 2015 
bullet Metric factorizability and equivalence of brane world models with Brans-Dicke theory
Phys. Rev.D 92, 2, 024059, 2015 
bullet Cosmological evolution in a two-brane warped geometry model
Phys.Lett. B747, 351, 2015 
bullet Graviton modes in multiply warped geometry
Phys.Lett. B746, 266, 2015 
bullet A note on spherically symmetric, static spacetimes in Kanno-Soda on-brane gravity
Gen.Rel.Grav. 47, 6, 70, 2015 
bullet Spherically symmetric brane spacetime with bulk f (R) gravity
Eur. Phys. J. C 75, 11, 2015
bullet Why has spacetime torsion such negligible effect on the Universe ?
Phys.Rev.D 90, 107901, 2014 
bullet A step towards exploring the features of Gravidilaton sector in Randall-Sundrum scenario via lightest Kaluza-Klein graviton mass
Eur.Phys.J. C 74, 3159, 2014
bullet Radion cosmology and stabilization
Eur.Phys. J. C 74, 3045, 2014
bullet Modulus stabilization in higher curvature dilaton gravity
JHEP 1408, 004, 2014
bullet Higher curvature gravity at the LHC
Phys.Rev D 90, 047901, 2014
bullet Bulk scalar field in warped extra dimensional model
Phys.Rev. D 89, 126001, 2014
bullet Brane cosmological constant in two-brane warped geometry model
Int.J.Mod.Phys. A29, 1450093, 2014
bullet Cosmology in multiply warped braneworld scenario
Int.J.Mod.Phys. A29, 1450069, 2014
bullet Solar system constraints on alternative gravity theories
Phys.Rev. D89, 026003, 2014
bullet Radion stability and induced, on-brane geometries in an effective scalar-tensor theory of gravity
Phys.Rev. D88, 123509, 2013
bullet Fermion mass hierarchy in a multiple warped braneworld model
J. Phys. G: Nucl. Part. Phys. 40, 075002, 2013
bullet Features of warped geometry in presence of Gauss-Bonnet coupling
JHEP 1302, 136, 2013
bullet Gauge and moduli hierarchy in a multiply warped braneworld scenario
Phys.Lett. B718, 1566, 2013
bullet Matter-Gravity Interaction in a Multiply Warped Braneworld
J.Phys. G40, 015004, 2013
bullet Muon (g-2) from the bulk neutrino field in a warped extra dimensional model
Phys.Rev. D86, 036014, 2012
bullet Bulk Higgs and Gauge fields in a multiply warped braneworld model
Phys.Rev. D83, 116003, 2011
bullet Tunneling across dilaton coupled black holes in anti de Sitter spacetime
Phys.Lett. B696, 167, 2011
bullet Antisymmetric tensor fields in a generalized Randall-Sundrum scenario
Phys.Lett. B698, 311, 2011
bullet Soft supersymmetry breaking with tiny cosmological constant in flux compactified N=1 Supergravity
Phys.Lett. B701, 367, 2011
bullet Scalar Kaluza-Klein modes in a multiply warped braneworld
Europhys.Lett. 91, 2010
bullet Bulk Higgs field in a Randall-Sundrum model with a nonvanishing brane cosmological constant
Phys.Rev D 81, 036011, 2010
bullet Strong gravitational lensing across a dilaton anti–de Sitter black hole
Phys. Rev D 81, 044013, 2010
bullet Kaluza-Klein modes of bulk fields in a generalized Randall-Sundrum scenario
Phys.Lett.B 683, 42, 2010.

bullet

Neutrino masses, cosmological constant and a stable universe in a Randall-Sundrum scenario
Phys. Rev. D 80, 055029, 2009
bullet A Randall Sundrum scenario with bulk dilaton and torsion
Phys.Rev.D 79, 124029, 2009
bullet Tunneling across dilaton-axion black holes
Phys.Lett.B 678, 112, 2009
bullet Stable two brane models with bulk tachyon matter
Int.Journ.of Mod.Phys.A 24, 4457, 2009
bullet Fermion localization in generalised Randall Sundrum model
Phys. Rev. D79, 041902 ,2009
bullet Modulus stabilization of generalized Randall Sundrum model with bulk scalar field
Euro. Phys. Lett.85,41001, 2009
bullet The Role of higher derivative bulk scalar in stabilizing a warped spacetime
Class.Quant.Grav.26, 055003, 2009
bullet Thermodynamics of dilaton-axion black holes
Phys.Rev.D78, 124005, 2008
bullet Aspects of warped braneworld models
Proceedings of Workshop on 'Physics of warped extra dimensions' CTS,IITKGP : 1, 2008
bullet Stability and hierarchy problems in string inspired braneworld scenarios
Europhys. Lett. 83: 51002, 2008
bullet Chiral fermions in a spacetime with multiple warping
Phys.Rev.D78: 045005, 2008
bullet Entropy of charged dilaton-axion black hole
Phys.Rev.D78:024045, 2008.
bullet Cosmological constant, brane tension and large hierarchy in a generalized Randall-Sundrum braneworld scenario.
JHEP 0805:042, 2008.
Constraining the Randall-Sundrum modulus in the light of recent PVLAS data
Phys.Rev.D 77: 015010, 2008
Bulk antisymmetric tensor fields in a Randall-Sundrum model.
Phys.Rev.D 76:121501, 2007
Slowly rotating dilaton black hole in anti-de Sitter spacetime.
Phys.Rev.D76:087504,2007
Supergravity can reconcile dark matter with lepton number violating neutrino masses.
Phys.Rev.D76:075001,2007
Generalization of the Randall-Sundrum warped braneworld model to higher dimensions.
Phys.Rev.D76:064030,2007
A Critical Analysis of Goldberger-Wise Stabilization in Randall-Sundrum Scenario.
Phys.Rev.D75:107901,2007
Fermion mass splitting, stability and naturalness problems in warped braneworld models.
AIP Conference Proceedings Vol.939 : 236,2007
The Raychaudhuri equations: A Brief review.(Invited article)
Pramana 69:49,2007
Randall-Sundrum with Kalb-Ramond field: Return of the hierarchy problem?
J.Phys.Conf.Ser.68:012009,2007
Split supersymmetry and the role of a light fermion in a general supergravity theory.
Mod.Phys.Lett.A22:1391-1400,2007
Stability analysis of the Randall-Sundrum braneworld in presence of bulk scalar.
Phys.Lett.B643:348-353,2006
Readdressing the hierarchy problem in a Randall-Sundrum scenario with bulk Kalb-Ramond background.
Class.Quant.Grav.23:L67,2006
Charged Black Holes in Generalized axion - dilaton Gravity.
JHEP10,064,2005
. Observable Signals in a String Inspired axion - dilaton Back Ground and Randall-Sundrum Scenario.
Phys.Rev.D72:066012,2005
Spinning Test Particle in Kalb-Ramond Back Ground.
Eur.Phys.J.C42:453-460,2005
Sparticle Spectrum and Phenomenology in Split Supersymmetry: Some Possibilities.
Phys.Rev.D71:035004,2005
Bulk Kalb-Ramond field in Randall-Sundrum scenario
Phys. Rev. D (70) 066009 (2004)
Parity violating Kalb-Ramond-Maxwell interactions and CMB anisotropy in a brane world
JCAP(0406)005(2004)
Cosmic optical activity in a Randall-Sundrum Brane world with bulk Kalb-Ramond field
Class.Quant.Grav.(3379)21(2004)
Parity violation in four and higher dimensional spacetime with torsion
Europhys J.C(35)129(2004)
Gravitational redshift in Einstein-Kalb-Ramond space-time and Randall-Sundrum scenario
Europhys. Lett. (65)601(2004)
Static spherisymmetric solutions, gravitational lensing and perihelion precession in Einstein-Kalb-Ramond theory
Phys. Rev. D(67) 044005(2003)
Does curvature dilaton coupling with a Kalb-Ramond field lead to an accelerating universe? 
JCAP (0312)001(2003)
Does a Randall-Sundrum scenario create the illusion of a torsion free universe? 
Phys. Rev. Lett.(89)121101(2002), Erratum: \published in(89)259902 (2002)
Bulk torsion fields in theories with large extra dimensions
Phys. Rev. D(65)124021(2002)
  Cosmic optical activity from an inhomogeneous Kalb-Ramond field
Class. Quant. Grav.19:677-688, 2002 
  Space-time torsion and parity violation: a Gauge invariant formulation
Mod. Phys. Lett. A17:43-50,2002 
Does a Kalb-Ramond field make space-time optically active?
Eur. Phys. J. C23:357-361,2002 
Spherically symmetric solutions of gravitational field equations in Kalb-Ramond background
Phys. Lett. B521:350-356, 2001 
  Fermion helicity flip in a Kalb-Ramond background
Phys. Lett. B514:109-113, 2001 
last updated on April 04, 2016

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