Vipul Kumar

activity

20242026

collaborators

3 papers

hep-th2026

From $Z$ to $a$ : High-temperature relations, subleading semi-universality, and conformal anomalies

Arnav Advant, Harsh Anand, Nathan Benjamin +6

The free energy of any CFT, $ln Z (β; ω_{i})$ , admits two expansions: high temperature ( $β \to 0$ ) and fast rotation ( $ω_{i} \to 1$ ). We demonstrate that locality of th…

hep-th2025

Semi-universality of CFT $_{d}$ entropy at large spin

Harsh Anand, Nathan Benjamin, Vipul Kumar +4

The thermal partition function, $Z$ , of a $C F T_{d}$ on $S^{d - 1}$ is parameterized by the inverse temperature $β$ along with $⌊ d /2 ⌋$ angular velocities $ω_{i}$ . In this pap…

hep-th2024

Grey Galaxies in $A d S_{5}$

Kabir Bajaj, Vipul Kumar, Shiraz Minwalla +2

It has recently been conjectured \cite{Kim:2023sig} that the end point of the rotational superradiant instability of black holes in $A d S_{4}$ is a Grey Galaxy: an $ω = 1$ black hole si…

From Z to a: High-temperature relations, subleading semi-universality, and conformal anomalies

Semi-universality of CFTd​ entropy at large spin

Grey Galaxies in AdS5​

From $Z$ to $a$ : High-temperature relations, subleading semi-universality, and conformal anomalies

Semi-universality of CFT $_{d}$ entropy at large spin

Grey Galaxies in $A d S_{5}$