Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Gaddam, Nava"'
Autor:
Gaddam, Nava, H, Ashik
The principle of holography of information states that all information available in the bulk of asymptotically flat spacetime is also available near its boundary at spatial infinity. However, physical observers never have access to spatial infinity.
Externí odkaz:
http://arxiv.org/abs/2410.17316
We study charged black hole and wormhole solutions of Type 0A/IIA string theory in two dimensions. There is a competition between Euclidean wormholes and near extremal black holes in the thermodynamic ensemble. In a certain regime of phase space, the
Externí odkaz:
http://arxiv.org/abs/2312.02257
Publikováno v:
JHEP 02 (2024) 148
We study Maxwell theory, in the presence of charged scalar sources, near the black hole horizon in a partial wave basis. We derive the gauge field configuration that solves Maxwell equations in the near-horizon region of a Schwarzschild black hole wh
Externí odkaz:
http://arxiv.org/abs/2309.05791
Autor:
Aggarwal, Ankit, Gaddam, Nava
Asymptotic symmetries are known to constrain the infrared behaviour of scattering processes in asymptotically flat spacetimes. By the same token, one expects symmetries of the black hole horizon to constrain near-horizon gravitational scattering. In
Externí odkaz:
http://arxiv.org/abs/2309.05775
Autor:
Gaddam, Nava, Groenenboom, Nico
Hawking's free field theory is expected to break down after Page time. In previous work, we have shown that a primary dynamical reason for this breakdown is the dominance of graviton fluctuations of the horizon that mediate scattering processes. In t
Externí odkaz:
http://arxiv.org/abs/2207.11277
Publikováno v:
Adv.Theor.Math.Phys. 27 (2023) 3, 683-744
We investigate the modularity constraints on the generating series $h_r(\tau)$ of BPS indices counting D4-D2-D0 bound states with fixed D4-brane charge $r$ in type IIA string theory compactified on complete intersection Calabi-Yau threefolds with $b_
Externí odkaz:
http://arxiv.org/abs/2204.02207
We propose a novel construction of a third quantised baby universe Hilbert space $\mathcal{H}_{BU}$ for the quantum gravity path integral. In contrast to the original description of $\alpha$-parameters, both the bulk and boundary microscopic paramete
Externí odkaz:
http://arxiv.org/abs/2204.01764
Autor:
Gaddam, Nava, Groenenboom, Nico
Publikováno v:
JHEP 01 (2022) 146
In the spirit of studying the information paradox as a scattering problem, we pose and answer the following questions: i) What is the scattering amplitude for $N$ particles to emerge from a large black hole when two energetic particles are thrown int
Externí odkaz:
http://arxiv.org/abs/2110.14673
We describe a unitary scattering process, as observed from spatial infinity, of massless scalar particles on an asymptotically flat Schwarzschild black hole background. In order to do so, we split the problem in two different regimes governing the dy
Externí odkaz:
http://arxiv.org/abs/2012.09834
Publikováno v:
JHEP 01 (2022) 023
We study scattering on the black hole horizon in a partial wave basis, with an impact parameter of the order of the Schwarzschild radius or less. This resembles the strong gravity regime where quantum gravitational effects appear. The scattering is g
Externí odkaz:
http://arxiv.org/abs/2012.02357