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Name : Soumitra Sengupta

Department : School of Physical Sciences
Designation : Amal Kumar Raychaudhuri Chair Professor in the School of Physical Sciences,
Contact : +91 33 2473 4971(Ext:2284)
Email : tpssg@iacs.res.in



Home

Current Research Interest:

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


Academic Profile

  • 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


Group

Will be available soon.


Publication

Publication:

Bouncing Cosmology in a curved braneworld
JCAP 02 ,042,  2021

Signatures of Einstein-Maxwell dilaton-axion gravity from the observed jet power and the radiative efficiency
Phys.Rev.D 103,4, 04406, 2021

Implications of Einstein–Maxwell dilaton–axion gravity from the black hole continuum spectrum
Monthly Notices of Royal Astronomical Society( MNRAS )
500,1,481, 2020  

Dynamical modelling of disc vertical structure in superthin galaxy ‘UGC 7321’ in braneworld gravity: an MCMC study
Monthly Notices of Royal Astronomical Society (MNRAS )
499,4, 5690, 2020

Imprints of the Janis-Newman-Winicour spacetime on observations related to shadow and accretion
Phys.Rev.D 102 ,6,064027, 2020

Implications of axionic hair on the shadow of M87*
Phys.Rev.D 101,10,104057, 2020

Silhouette of M87*: A New Window to Peek into the World of Hidden Dimensions
Phys.Rev.D ( Rapid Communication ) , 101,4,041301, 2020

Does black hole continuum spectrum signal f(R) gravity in higher dimensions?
Phys.Rev.D, 101 , 2, 024013 , 2020

Constraining extra-spatial dimensions with observations of GW170817
Class.Quant.Grav.37,10,105004, 2020

Scalaron tunneling and the fate of antisymmetric tensor fields in F(R) gravity
Class.Quant.Grav.37,22,225012, 2020

Decoding signatures of extra dimensions and estimating spin of quasars from the continuum spectrum
Phys.Rev.D, 100,4,044045, 2019

Tidal Love Numbers of Black Holes and Neutron Stars in the Presence of Higher Dimensions: Implications of GW170817
Phys.Rev. D99  No.2, 024036, 2019

Fate of Strong Cosmic Censorship Conjecture in Presence of Higher Spacetime Dimensions
JHEP 03,178, 2019

Dynamical suppression of spacetime torsion
Eur.Phys.J.C 79,7,591, 2019

Radion induced inflation on nonflat brane and modulus stabilization
Phys.Rev. D99  no.2, 023515, 2019

Invisibility of antisymmetric tensor fields in the light of 𝐹(𝑅) gravity
Phys.Rev. D98  no.10, 104002, 2018

Packing extra mass in compact stellar structures: An interplay between Kalb-Ramond field and extra dimensions
JCAP 1805 no.05, 032, 2018

Inflation driven by Einstein-Gauss-Bonnet gravity
Phys.Rev. D98 , no.8, 083539, 2018

Radion tunneling in modified theories of gravity
Eur.Phys.J. C78 , no.4, 338, 2018

Signatures of extra dimensions in gravitational waves from black hole quasinormal modes
Phys.Rev. D97 no.10, 104053, 2018

In quest of axionic hairs in quasars
JCAP 1803 no.03, 039, 2018

Radion stabilization in higher curvature warped spacetime
Eur.Phys.J. C78 , no.2, 108, 2018  

Fermion Localization in higher Curvature spacetime
Class.Quant.Grav. 35 , no.2, 025007, 2018  

Strong gravitational lensing --- A probe for extra dimensions and Kalb-Ramond field
JCAP 1707, no.07, 045, 2017  

Fermion localization in higher curvature and scalar–tensor theories of gravity
Eur.Phys. J. C77, no.12, 833, 2017  

Excavating black hole continuum spectrum: Possible signatures of scalar hairs and of higher dimensions
Phys.Rev. D96 , no.8, 084035, 2017  

Bouncing cosmology from warped extra dimensional scenario
Eur.Phys.J. C77 , no.12, 813, 2017  

Modulus stabilization in a non-flat warped braneworld scenario
Eur.Phys.J. C77 , no.5, 277, 2017  
Fermion localization in a backreacted warped spacetime
Phys.Rev. D95 , no.11, 115011, 2017  

Gravity stabilizes itself
Eur.Phys.J. C77, no.8, 573, 2017  

Study of superradiant instability of a dilaton-axion black hole under scalar perturbation
Euro.Phys.Lett. 120, 50003, 2017  

Fermion localization in a backreacted warped spacetime
Phys.Rev. D95. 115011, 2017  

Modulus stabilization in a non-flat warped braneworld scenario
Eur.Phys.J. C77 , 277, 2017

Diphoton signal via Chern-Simons interaction in a warped geometry scenario
Phys.Rev. D 95, 015007, 2017  
Kinematics of radion field: a possible source of dark matter
Eur.Phys.J. C76, 12, 648, 2016  
Spherically symmetric brane in a bulk of f(R) and Gauss-Bonnet Gravity
Class.Quant.Grav. 33 , 22, 225001, 2016
Solving higher curvature gravity theories
Eur.Phys.J. C76 , 10, 552, 2016  
Lightest Kaluza–Klein graviton mode in a back-reacted Randall–Sundrum scenario
Eur.Phys.J. C76, 8, 423, 2016
Graviton Kaluza-Klein modes in nonflat branes with stabilized modulus
Phys.Rev. D93, 8, 085035, 2016  
Higher rank antisymmetric tensor fields in Klebanov-Strassler geometry
Phys.Rev. D93, 10, 105012, 2016
Penrose process in a charged axion–dilaton coupled black hole
Eur.Phys.J. C76, 4, 213 , 2016
Radion vacuum expectation value and graviton mass: a study in an Einstein–Gauss–Bonnet warped geometry scenario
Gen.Rel.Grav. 48, 2, 17, 2016

Solutions on a brane in a bulk spacetime with Kalb-Ramond field
Annals Phys. 367, 258, 2016

Effective field equation on m-brane embedded in n-dimensional bulk of Einstein and f(R) gravity
Eur. Phys. J. C 75, 538, 2015
Can extra dimensional effects allow wormholes without exotic matter?
Phys.Lett. B750,319,2015
A Geometric Approach to Modulus Stabilization
Phys.Rev. D92, 2, 026008, 2015
Metric factorizability and equivalence of brane world models with Brans-Dicke theory
Phys. Rev.D 92, 2, 024059, 2015
Cosmological evolution in a two-brane warped geometry model 
Phys.Lett. B747, 351, 2015
Graviton modes in multiply warped geometry
Phys.Lett. B746, 266, 2015
A note on spherically symmetric, static spacetimes in Kanno-Soda on-brane gravity 
Gen.Rel.Grav. 47, 6, 70, 2015
Spherically symmetric brane spacetime with bulk f (R) gravity
Eur. Phys. J. C 75, 11, 2015
Why has spacetime torsion such negligible effect on the Universe ?
Phys.Rev.D 90, 107901, 2014
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
Radion cosmology and stabilization
Eur.Phys. J. C 74, 3045, 2014
Modulus stabilization in higher curvature dilaton gravity
JHEP 1408, 004, 2014
Higher curvature gravity at the LHC
Phys.Rev D 90, 047901, 2014
Bulk scalar field in warped extra dimensional model
Phys.Rev. D 89, 126001, 2014
Brane cosmological constant in two-brane warped geometry model
Int.J.Mod.Phys. A29, 1450093, 2014
Cosmology in multiply warped braneworld scenario
Int.J.Mod.Phys. A29, 1450069, 2014
Solar system constraints on alternative gravity theories
Phys.Rev. D89, 026003, 2014
Radion stability and induced, on-brane geometries in an effective scalar-tensor theory of gravity
Phys.Rev. D88, 123509, 2013
Fermion mass hierarchy in a multiple warped braneworld model
J. Phys. G: Nucl. Part. Phys. 40, 075002, 2013
Features of warped geometry in presence of Gauss-Bonnet coupling
JHEP 1302, 136, 2013
Gauge and moduli hierarchy in a multiply warped braneworld scenario
Phys.Lett. B718, 1566, 2013
Matter-Gravity Interaction in a Multiply Warped Braneworld
J.Phys. G40, 015004, 2013
Muon (g-2) from the bulk neutrino field in a warped extra dimensional model
Phys.Rev. D86, 036014, 2012
Bulk Higgs and Gauge fields in a multiply warped braneworld model
Phys.Rev. D83, 116003, 2011
Tunneling across dilaton coupled black holes in anti de Sitter spacetime
Phys.Lett. B696, 167, 2011
Antisymmetric tensor fields in a generalized Randall-Sundrum scenario
Phys.Lett. B698, 311, 2011
Soft supersymmetry breaking with tiny cosmological constant in flux compactified N=1 Supergravity
Phys.Lett. B701, 367, 2011
Scalar Kaluza-Klein modes in a multiply warped braneworld
Europhys.Lett. 91, 2010
Bulk Higgs field in a Randall-Sundrum model with a nonvanishing brane cosmological constant
Phys.Rev D 81, 036011, 2010
Strong gravitational lensing across a dilaton anti–de Sitter black hole
Phys. Rev D 81, 044013, 2010
Kaluza-Klein modes of bulk fields in a generalized Randall-Sundrum scenario
Phys.Lett.B 683, 42, 2010.
Neutrino masses, cosmological constant and a stable universe in a Randall-Sundrum scenario
Phys. Rev. D 80, 055029, 2009
A Randall Sundrum scenario with bulk dilaton and torsion
Phys.Rev.D 79, 124029, 2009
Tunneling across dilaton-axion black holes
Phys.Lett.B 678, 112, 2009
Stable two brane models with bulk tachyon matter
Int.Journ.of Mod.Phys.A 24, 4457, 2009
Fermion localization in generalised Randall Sundrum model
Phys. Rev. D79, 041902 ,2009
Modulus stabilization of generalized Randall Sundrum model with bulk scalar field
Euro. Phys. Lett.85,41001, 2009
The Role of higher derivative bulk scalar in stabilizing a warped spacetime 
Class.Quant.Grav.26, 055003, 2009
Thermodynamics of dilaton-axion black holes
Phys.Rev.D78, 124005, 2008
Aspects of warped braneworld models
Proceedings of Workshop on 'Physics of warped extra dimensions' CTS,IITKGP : 1, 2008
Stability and hierarchy problems in string inspired braneworld scenarios
Europhys. Lett. 83: 51002, 2008
Chiral fermions in a spacetime with multiple warping
Phys.Rev.D78: 045005, 2008
Entropy of charged dilaton-axion black hole
Phys.Rev.D78:024045, 2008.
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