4 papers
Holographic Black Hole Formation and Scrambling in Time-Ordered Correlators
Pratyusha Chowdhury, Felix M. Haehl, Adrián Sánchez-Garrido +1
We describe a holographic mechanism for black hole formation via the collision of two shock waves in three-dimensional anti-de Sitter spacetime. In the dual conformal field theory…
Wigner negativity, random matrices and gravity
Ritam Basu, Pratyusha Chowdhury, Anirban Ganguly +3
Given a choice of an ordered, orthonormal basis for a -dimensional Hilbert space, one can define a discrete version of the Wigner function -- a quasi-probability distribution wh…
Loops, Recursions, and Soft Limits for Fermionic Correlators in (A)dS
Chandramouli Chowdhury, Pratyusha Chowdhury, Radu N. Moga +1
Study of correlation functions in AdS/CFT and in-in correlators in de Sitter space often requires the computation of Witten diagrams. Due to the complexity of evaluating radial int…
Instability Zones in the Dynamics of a Quantum Mechanical Quasiperiodic Parametric Oscillator
Subhadip Biswas, Pratyusha Chowdhury, Jayanta K Bhattacharjee
Quasi-periodically driven quantum parametric oscillators have been the subject of several recent investigations. Here we show that for such oscillators, the instability zones of th…