Zobrazeno 1 - 10
of 321
pro vyhledávání: '"Tripathy Prasanta"'
Autor:
Mishra, Anshul, Tripathy, Prasanta K.
In this paper we study black hole and black string solutions in five dimensional N=2 supergravity theories arising from the compactification of M-theory on Calabi-Yau manifolds. In particular, we consider explicit examples of three parameter Calabi-Y
Externí odkaz:
http://arxiv.org/abs/2310.14187
Publikováno v:
Phys. Rev. D. 105, 106024 (2022)
In this paper we consider the non-Abelian T-dual geometry of the type $IIB$ supergravity theory on $AdS_3\times S^3\times T^4$ background along a convenient $SU(2)$ subgroup of the $SO(4)$ R-symmetry. We examine various null geodesics of the resultin
Externí odkaz:
http://arxiv.org/abs/2203.14212
[abridged version] We study extremal solutions arising in M-theory compactifications on Calabi-Yau threefolds, focussing on non-BPS attractors for their importance in relation to the Weak Gravity Conjecture. In the low-energy/field theory limit one o
Externí odkaz:
http://arxiv.org/abs/2202.06872
Publikováno v:
Phys. Rev. D. 104, 126016 (2021)
In this paper we consider the Klebanov-Tseytlin background and its non-Abelian T-dual geometry along a suitably chosen $SU(2)$ subgroup of isometries. We analyse the Penrose limits along various null geodesics of both the geometries. We observe that,
Externí odkaz:
http://arxiv.org/abs/2109.09263
Autor:
Anand, Ankit, Tripathy, Prasanta K.
Publikováno v:
Phys. Rev. D 102, 126016 (2020)
In this paper we consider a massive vector field in the background of a space-time obtained by certain Z2 quotient of the BTZ black hole. We analyse the back reaction of the matter field on the space-time geometry up to first order in metric perturba
Externí odkaz:
http://arxiv.org/abs/2008.10920
Publikováno v:
JHEP 11(2019)125
In this paper we consider both Abelian as well as non-Abelian T-duals of the Klebanov-Witten background and inspect their various Penrose limits. We show that these backgrounds admit pp-wave solutions in the neighbourhood of appropriate null geodesic
Externí odkaz:
http://arxiv.org/abs/1907.01904
Autor:
Bhatia, Komal, Rath, Suchitra, Pradhan, Hemanta, Samal, Subhashree, Copas, Andrew, Gagrai, Sumitra, Rath, Shibanand, Gope, Raj Kumar, Nair, Nirmala, Tripathy, Prasanta, Rose-Clarke, Kelly, Prost, Audrey
Publikováno v:
In SSM - Population Health March 2023 21
We study the effect of Freudenthal duality on supersymmetric extremal black hole attractors in N = 2, D = 4 ungauged supergravity. Freudenthal duality acts on the dyonic black hole charges as an anti-involution which keeps the black hole entropy and
Externí odkaz:
http://arxiv.org/abs/1703.08669
Autor:
Tripathy, Prasanta K.
In this paper we analyse non-supersymmetric single centred extremal black hole solutions in N=2 supergravity theory coupled to $n$ vector multiplets with purely cubic pre-potential in four dimensions. We consider the algebraic attractor equations in
Externí odkaz:
http://arxiv.org/abs/1701.00368
Autor:
Mandal, Taniya, Tripathy, Prasanta K.
In this paper we consider the four dimensional N=2 supergravity theory arising from the compactification of type IIA string theory on a Calabi-Yau manifold. We analyse the supersymmetric flow equations for static, spherically symmetric, single-center
Externí odkaz:
http://arxiv.org/abs/1602.02878