9 papers
Anomaly quenching and dynamical cooling of Hawking evaporation in Horndeski gravity
Amogh Srivastav, S. Shankaranarayanan
We investigate the semiclassical Hawking evaporation of a two-dimensional Callan-Giddings-Harvey-Strominger (CGHS) black hole perturbed by first-order Horndeski scalar-tensor coupl…
Resolution of Infrared Entanglement Divergences via the Extended Uncertainty Principle
Subhra Mondal, S. Shankaranarayanan
The entanglement entropy of quantum systems typically exhibits both ultraviolet and infrared (IR) divergences. In the low-frequency limit, the IR divergence is intimately tied to t…
Emergent Hawking Radiation and Quantum Sensing in a Quenched Chiral Spin Chain
Nitesh Jaiswal, S. Shankaranarayanan
We investigate the emergence and detection of Hawking radiation (HR) in a 1D chiral spin chain model, where the gravitational collapse is simulated by a sudden quantum quench that…
Finite 4-D Gauss-Bonnet quantum corrections from matter-graviton interactions in a curved background
Apurv Keer, S. Shankaranarayanan
The Glavan-Lin proposal for 4D Einstein-Gauss-Bonnet (EGB) gravity introduces a singular dimensional scaling to bypass Lovelock's theorem, though its fundamental origin remains deb…
Gravitational wave detection via photon-graviton scattering and quantum interference
K. Hari, S. Shankaranarayanan
We present a fully quantum field-theoretic framework for gravitational wave (GW) detection in which the interaction is described as photon-graviton scattering. In this picture, the…
Quantum Cosmology as a Hydrogen atom: Discrete and cyclic Universes from Wheeler-DeWitt quantization
Dipayan Mukherjee, Harkirat Singh Sahota, S. Shankaranarayanan
Building upon our recently established correspondence between quantum cosmology and the hydrogen atom [1], we investigate the specific sector of a negative cosmological constant ($…