6 papers
Holography with an Inner Boundary: A Smooth Horizon as a Sum over Horizonless States
Chethan Krishnan, Pradipta S. Pathak
The (holomorphic) partition function of the Euclidean BTZ black hole with boundary modulus , is the -image of the Virasoro vacuum character, . This object…
Virasoro Blocks and Trouble at the Euclidean Horizon
Aaditya Datar, Chethan Krishnan
In the semi-classical () limit, 4-point HLLH correlators in 2D CFTs exhibit periodic Euclidean singularities. Periodic singularities in Euclidean time are a g…
An Analytic Zeta Function Ramp at the Black Hole Thouless Time
Pallab Basu, Suman Das, Chethan Krishnan
Black hole normal modes have intriguing connections to logarithmic spectra, and the spectral form factor (SFF) of is the mod square of the Riemann zeta function (RZF…
A Central Charge for sub-AdS Holography
Abir Ghosh, Chethan Krishnan, Adinath Mahalingam
We synthesize and sharpen various observations about sub-AdS holography in the literature to associate a central charge to sub-AdS scales of AdS x geometries. A key ingredient…
Holomorphic Factorization at the Quantum Horizon
Chethan Krishnan, Pradipta S. Pathak
We identify a horizon-skimming limit under which wave equations around large classes of black holes allow a determination of their low-lying (quasi-)degenerate normal modes. Buildi…
A Bottom-Up Approach to Black Hole Microstates
Vaibhav Burman, Chethan Krishnan
In arXiv:2312.14108, we argued that a sliver at the black hole mass in the Hilbert space of a quantum field theory on an AdS black hole with a stretched horizon, has many desirable…