427 citations · 3.4k across the 88 of their papers we have counts for
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3D Gravity, Chern-Simons and Higher Spins: A Mini Introduction
K. Surya Kiran, Chethan Krishnan, Avinash Raju
These are notes of introductory lectures on (a) elements of 2+1 dimensional gravity, (b) some aspects of its relation to Chern-Simons theory, (c) its generalization to couple highe…
A Generalization of Gravity
Chethan Krishnan
I consider theories of gravity built not just from the metric and affine connection, but also other (possibly higher rank) symmetric tensor(s). The Lagrangian densities are scalars…
A Stochasticity Threshold in Holography and and the Instability of AdS
Pallab Basu, Chethan Krishnan, Ayush Saurabh
We give strong numerical evidence that a self-interacting probe scalar field in AdS, with only a few modes turned on initially, will undergo fast thermalization only if it is above…
Strings vs Spins on the Null Orbifold
K. Surya Kiran, Chethan Krishnan, Ayush Saurabh +1
We study the null orbifold singularity in 2+1 d flat space higher spin theory as well as string theory. Using the Chern-Simons formulation of 2+1 d Einstein gravity, we first obser…
Low Tension Strings on a Cosmological Singularity
Ben Craps, Chethan Krishnan, Ayush Saurabh
It has recently been argued that the singularity of the Milne orbifold can be resolved in higher spin theories. In string theory scattering amplitudes, however, the Milne singulari…