Zobrazeno 1 - 10
of 257
pro vyhledávání: '"S Shankaranarayanan"'
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-8 (2023)
Abstract Over the last two decades, motivations for modified gravity have emerged from both theoretical and observational levels. f(R) and Chern-Simons gravity have received more attention as they are the simplest generalization. However, f(R) and Ch
Externí odkaz:
https://doaj.org/article/f48ab145cf9a4c628859bacc4797e71d
Autor:
Susmita Jana, S. Shankaranarayanan
Publikováno v:
Universe, Vol 10, Iss 7, p 270 (2024)
General relativity (GR) postulates have been verified with high precision, yet our understanding of how gravity interacts with matter fields remains incomplete. Various modifications to GR have been proposed in both classical and quantum realms to ad
Externí odkaz:
https://doaj.org/article/87c09645fdce4733ae467bf723e8a8fa
Publikováno v:
Physics Letters B, Vol 835, Iss , Pp 137511- (2022)
A recent study established a correspondence between the Generalized Uncertainty Principle (GUP) and Modified theories of gravity, particularly Stelle gravity. We investigate the consequences of this correspondence for inflation and cosmological obser
Externí odkaz:
https://doaj.org/article/344ff2e735bc4e7090875301ff907682
Publikováno v:
Physics Letters B, Vol 821, Iss , Pp 136621- (2021)
Quantum theories of gravity predict interesting phenomenological features such as a minimum measurable length and maximum momentum. We use the Generalized Uncertainty Principle (GUP), which is an extension of the standard Heisenberg Uncertainty Princ
Externí odkaz:
https://doaj.org/article/bc847ea83ab04e1c966cc5abf86a10c0
Publikováno v:
Universe, Vol 8, Iss 11, p 603 (2022)
Black hole horizons interact with external fields when matter or energy falls through them. Such non-stationary black hole horizons can be described using viscous fluid equations. This work attempts to describe this process using effective field theo
Externí odkaz:
https://doaj.org/article/a742bc5eaaf1452689cd6b348d942176
Publikováno v:
Materials Today: Proceedings. 72:2281-2288
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e14dc38b50b599755797ef979e7c240f
https://doi.org/10.1016/j.matpr.2022.09.217
https://doi.org/10.1016/j.matpr.2022.09.217
Autor:
Mahendra Mali, S. Shankaranarayanan
Publikováno v:
Nuclear Physics B, Vol 937, Iss , Pp 422-433 (2018)
In the recent studies of four-dimensional Einstein–Hilbert action, quite a few interesting results such as the Kawai–Lewellen–Tye (KLT) relations, MHV-Lagrangian and quadratic forms have been reported. These results naturally raise an important
Externí odkaz:
https://doaj.org/article/a8d20eb7ce23436b8e77dc2361be4891
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 78, Iss 9, Pp 1-14 (2018)
Abstract The ring-down phase of black-hole perturbations is governed by the quasi-normal modes (QNM) and offer valuable insight into the nature of the objects emitting them, raising an interesting question: whether QNMs can be used to distinguish bet
Externí odkaz:
https://doaj.org/article/e2fcb13d705f4ff6a372e7392859ddd0
Publikováno v:
Journal of Statistics and Management Systems. 25:1205-1213
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a59d35faa2e3ba5397b92094fdfe0249
https://doi.org/10.1080/09720510.2022.2094554
https://doi.org/10.1080/09720510.2022.2094554
Publikováno v:
The Sixteenth Marcel Grossmann Meeting.
Einstein equations projected on black-hole horizons give rise to the equations of motion of a viscous fluid. This suggests a way to understand the microscopic degrees of freedom on the black-hole horizon by focusing on the physics of this fluid. In t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d3cd2cf3dc7e49a9887310123fefa347
https://doi.org/10.1142/9789811269776_0102
https://doi.org/10.1142/9789811269776_0102