AdS/CFT correspondence, conformal anomaly and quantum corrected entropy bounds

TL;DR

This paper explores how conformal anomalies influence the AdS/CFT correspondence, quantum corrections to entropy, and the evolution of entropy bounds in inflationary universes, highlighting the potential for brane quantum gravity within this framework.

Contribution

It clarifies the role of conformal anomaly in AdS/CFT, demonstrates quantum corrected entropy calculations, and analyzes entropy bounds during inflationary evolution.

Findings

Quantum corrected entropy is explicitly calculated.

Entropy bounds become approximate during inflation.

Brane quantum gravity can be incorporated into AdS/CFT.

Abstract

The role of conformal anomaly in AdS/CFT and related issues is clarified. The comparison of holographic and QFT conformal anomalies (with account of brane quantum gravity contribution) indicates on the possibility for brane quantum gravity to occur within AdS/CFT set-up. 3d quantum induced inflationary (or hyperbolic) brane-world is shown to be realized in frames of AdS3/CFT2 correspondence where the role of 2d brane cosmological constant is played by effective tension due to two-dimensional conformal anomaly. The dynamical equations to describe 4d FRW-Universe with account of quantum effects produced by conformal anomaly are obtained. The quantum corrected energy, pressure and entropy are found. Dynamical evolution of entropy bounds in inflationary Universe is estimated and its comparison with quantum corrected entropy is done. It is demonstrated that entropy bounds for quantum corrected entropy are getting the approximate ones and occur for some limited periods of evolution of inflationary Universe.