Faculty Details

Areas of Interest

• String Theory

Current Research

My research focuses on traversable wormholes, hidden symmetries in Einstein equations in the presence of a Killing vector, uniqueness of supersymmetric black holes, attractor mechanism, non-supersymmetric attractors and their stability, multiple attractors. Attractor mechanism plays a very crucial role in understanding the black hole entropy. In particular it explains why the entropy of black holes depend only on the quantized charges of the black hole and not on any continuous parameter such as the moduli associated with the vector multiplets and hyper multiplets. Of particular interest is the issue involving the multiplicity of attractors, i.e., the existence of different attractor points with the same value of charges. This has important consequence in describing the microscopic entropy of black holes. We focus on studying multiple attractors in different string theory compactifications.

Students

Current PhD Students

• PH18D008    ANSHUL MISHRA
• PH18D045    ANKIT ANAND

Recent Publications

• Stability of Bianchi attractors in Gauged Supergravity. Karthik Inbasekar, Prasanta K. Tripathy. JHEP e-Print: arXiv:1307.1314 [hep-th. 1310 . 163. 2013.
• Non-Supersymmetric Stringy Attractors. Pramod Dominic, Prasanta K. Tripathy. JHEP e-Print: arXiv:1109.6918 [hep-th] . 1201 . 030. 2012.
• Generalized Attractors in Five-Dimensional Gauged Supergravity. Karthik Inbasekar, Prasanta K. Tripathy. JHEP e-Print: arXiv:1206.3887 [hep-th]. 1209 . 003. 2012.
• Instanton Corrected Non-Supersymmetric Attractors. Pramod Dominic, Prasanta K. Tripathy. JHEP e-Print: arXiv:1010.3373 [hep-th]. 1101 . 116. 2011.
• On the Stability of Non-Supersymmetric Quantum Attractors in String Theory. Pramod Dominic, Prasanta K. Tripathy. JHEP e-Print: arXiv:1105.0481 [hep-th]. 1106. 112 . 2011.
• On the stability of non-supersymmetric attractors in string theory.. S. Nampuri, P. K. Tripathy, S. P. Trivedi. JHEP e-Print: arXiv:0705.4554 [hep-th]. 0708. 054. 2007.
• The Geroch group in Einstein spaces. Robert G. Leigh, Anastasios C. Petkou, P. Marios Petropoulos, Prasanta K. Tripathy. e-Print: arXiv:1403.6511 [hep-th. 0.
• Multiple Single-Centered Attractors. Pramod Dominic, Taniya Mandal, Prasanta K. Tripathy. e-Print: arXiv:1406.7147 [hep-th]. 0.

Teaching

• 2017 :  (Jan - May) - PH5480 Quantum Field Theory; (Jul - Nov) - EP2102 Classical Dynamics
• 2018 :  (Jan - May) - PH5480 Quantum Field Theory; (Jul - Nov) - EP2102 Classical Dynamics
• 2019 :  (Jul - Nov) - EP4040 Seminar / PH1010 Physics I
• 2020 :  (Jan - May) - EP4150 Project / PH5020 Electromagnetic Theory
• 2021 :  (Jan - May) - PH1020 Physics II ; (Jul - Nov) - PH1010 Physics I / PH5291 Project I
• 2022 :  (Jan - May) - PH5020 Electromagnetic Theory / PH5240 Viva Voce ; (Jul - Nov) - PH1030 Physics Laboratory I / PH5820 Classical Physics
• 2023 :  (Jan - May) - PH5480 Quantum Field Theory - 1