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20052024
most citedBounds on Slow Roll and the de Sitter Swampland

427 citations · 3.4k across the 88 of their papers we have counts for

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hep-th2024

A Vestige of FZZ Duality in Higher Dimensions

Chethan Krishnan, Sarthak Talukdar

In 1+1 dimensions, the equations of motion of the Horowitz-Polchinski (HP) effective string have a re-writing in terms of a first order system. This is attributed to FZZ duality. I…

hep-th2023★ 19 cited

What is the Simplest Linear Ramp?

Suman Das, Sumit K. Garg, Chethan Krishnan +1

We discuss conditions under which a deterministic sequence of real numbers, interpreted as the set of eigenvalues of a Hamiltonian, can exhibit features usually associated to rando…

hep-th2023

Charges for Hypertranslations and Hyperrotations

Chethan Krishnan, Jude Pereira

Hypertranslations and hyperrotations are asymptotic symmetries of flat space, on top of the familiar supertranslations and superrotations. They were discovered in arXiv:2205.01422…

hep-th2023

Fuzzballs and Random Matrices

Suman Das, Sumit K. Garg, Chethan Krishnan +1

Black holes are believed to have the fast scrambling properties of random matrices. If the fuzzball proposal is to be a viable model for quantum black holes, it should reproduce th…

hep-th2022★ 6 cited

HKLL for the Non-Normalizable Mode

Budhaditya Bhattacharjee, Chethan Krishnan, Debajyoti Sarkar

We discuss various aspects of HKLL bulk reconstruction for the free scalar field in AdS. First, we consider the spacelike reconstruction kernel for the non-normalizable mod…

hep-th2022★ 24 cited

Synthetic Fuzzballs: A Linear Ramp from Black Hole Normal Modes

Suman Das, Chethan Krishnan, A. Preetham Kumar +1

We consider a black hole with a stretched horizon as a toy model for a fuzzball microstate. The stretched horizon provides a cut-off, and therefore one can determine the normal (as…