In this paper, we review in detail different mechanisms of generation of large primordial
fluctuations and their implications for the production of primordial black holes (PBHs) and …

In this paper, we study the Krylov complexity (K) from the planar/inflationary patch of the de
Sitter space using the two mode squeezed state formalism in the presence of an effective …

Recently, in various theoretical works, path-breaking progress has been made in recovering
the well-known page curve of an evaporating black hole with quantum extremal islands …

A bstract In this paper, we propose a model based on wedge holography that can describe
the multiverse. In wedge holography, we consider two gravitating baths, one of which has …

Abstract $ Circuit~ Complexity $, a well known computational technique has recently
become the backbone of the physics community to probe the chaotic behaviour and random …

We investigate quantum decoherence in a class of models which interpolates between
expanding (inflation) and contracting (ekpyrosis) scenarios. For the cases which result in a …

The out-of-time-ordered correlation (OTOC) function is an important new probe in quantum
field theory which is treated as a significant measure of random quantum correlations. In this …

In this work, signatures of quantum entanglement by computing entanglement negativity
between two causally unrelated regions in 3+ 1 dimensional global de Sitter space are …

(Non-)unitarity of strictly and partially massless fermions on de Sitter space II: an
explanation based on the group-theoretic properties of the spin-3/2 and spin-5/2 …

In this work, our prime objective is to study non-locality and long range effect of two body
correlation using quantum entanglement from various information theoretic measure in the …