SCOAP3 Repository 8 records found  Search took 0.16 seconds. 
1. On AdS 2 holography from redux, renormalization group flows and c -functions / Kolekar, Kedar ; Narayan, K.
Extremal black branes upon compactification in the near horizon throat region are known to give rise to AdS 2 dilaton-gravity-matter theories. [...]
Published in JHEP 1902 (2019) 039 10.1007/JHEP02(2019)039 arXiv:1810.12528
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2. AdS2 dilaton gravity from reductions of some nonrelativistic theories / Kolekar, Kedar S. ; Narayan, K.
We study dilaton-gravity theories in two dimensions obtained by dimensional reduction of higher-dimensional nonrelativistic theories. [...]
Published in Physical Review D 98 (2018) 10.1103/PhysRevD.98.046012 arXiv:1803.06827
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3. On extremal surfaces and de Sitter entropy / Narayan, K.
We study extremal surfaces in the static patch coordinatization of de Sitter space, focusing on the future and past universes. [...]
Published in Physics letters B (2018) 10.1016/j.physletb.2018.02.010
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4. Hyperscaling violation, quasinormal modes and shear diffusion / Mukherjee, Debangshu ; Narayan, Krishnan
We study quasinormal modes of shear gravitational perturbations for hyperscaling violating Lifshitz theories, with Lifshitz and hyperscaling violating exponents z and θ . [...]
Published in JHEP 1712 (2017) 023 10.1007/JHEP12(2017)023 arXiv:1707.07490
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5. Entangled spins and ghost-spins / Jatkar, Dileep P. ; Narayan, K.
We study patterns of quantum entanglement in systems of spins and ghost-spins regarding them as simple quantum mechanical toy models for theories containing negative norm states. [...]
Published in Nuclear Physics B (2017) 10.1016/j.nuclphysb.2017.07.002
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6. Hyperscaling violation and the shear diffusion constant / Kolekar, Kedar S. ; Mukherjee, Debangshu ; Narayan, K.
We consider holographic theories in bulk (d+1) -dimensions with Lifshitz and hyperscaling violating exponents z,θ at finite temperature. [...]
Published in Physics letters B (2016) 10.1016/j.physletb.2016.06.046
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7. de Sitter space and extremal surfaces for spheres / Narayan, K.
Following arXiv:1501.03019 [hep-th] , we study de Sitter space and spherical subregions on a constant boundary Euclidean time slice of the future boundary in the Poincaré slicing. [...]
Published in Physics letters B (2015) 10.1016/j.physletb.2015.12.019
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8. dS/CFT at uniform energy density and a de Sitter “bluewall” / Diptarka Das ; Sumit R. Das ; K. Narayan
We describe a class of spacetimes that are asymptotically de Sitter in the Poincare slicing. [...]
Published in JHEP 1404 (2014) 116 10.1007/JHEP04(2014)116 arXiv:1312.1625
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1 Narayan, Krishnan
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