activity
20212026
most citedSmall Schwarzschild de Sitter black holes, quantum extremal surfaces and islands

36 citations · 54 across the 6 of their papers we have counts for

collaborators

6 papers

hep-th2026

Genuine Multi-Entropy in Abelian Chern--Simons Theory: Exact Key-Ring Collapse and Its Breakdown for Generic Link States

Yen-Cheng Chang, Kaberi Goswami, Norihiro Iizuka +1

We study genuine multi-entropy in Abelian Chern-Simons theory. For key-ring link states, where only the linking numbers between one distinguished component and the rem…

hep-th2024★ 1 cited

Attractor saddle for 5D black hole index

Soumya Adhikari, Pavan Dharanipragada, Kaberi Goswami +1

In a recent paper, Anupam, Chowdhury, and Sen [arXiv:2308.00038] constructed the non-extremal saddle that reproduces the supersymmetric index of the BMPV black hole with three inde…

hep-th2024

No-boundary extremal surfaces in slow-roll inflation and other cosmologies

Kaberi Goswami, K. Narayan, Gopal Yadav

Building on previous work on de Sitter extremal surfaces anchored at the future boundary, we study no-boundary extremal surfaces in slow-roll inflation models, with perturbations t…

hep-th2023

Small Schwarzschild de Sitter black holes, the future boundary and islands

Kaberi Goswami, K. Narayan

We continue the study of 4-dimensional Schwarzschild de Sitter black holes in the regime where the black hole mass is small compared with the de Sitter scale, following arXiv:2207.…

hep-th2022★ 36 cited

Small Schwarzschild de Sitter black holes, quantum extremal surfaces and islands

Kaberi Goswami, K. Narayan

We study 4-dimensional Schwarzschild de Sitter black holes in the regime where the black hole mass is small compared with the de Sitter scale. Then the de Sitter temperature is ver…

hep-th2021★ 17 cited

Cosmologies, singularities and quantum extremal surfaces

Kaberi Goswami, K. Narayan, Hitesh K. Saini

Following arXiv:2012.07351 [hep-th], we study quantum extremal surfaces in various families of cosmologies with Big-Crunch singularities, by extremizing the generalized entropy in…