On generalization of 2d gravity with the simplest non-invariant states

TL;DR

This paper explores how non-invariant states of matter, such as primary CFT states and thermal distributions, affect the effective action and generalization of two-dimensional quantum gravity.

Contribution

It derives the effective action for 2D gravity coupled with non-invariant matter states, extending previous models to include Poincaré non-invariant configurations.

Findings

Non-invariant matter states significantly influence 2D gravity dynamics

Effective action modifications depend on the type of non-invariant states

Analysis of primary CFT and thermal matter states in 2D gravity

Abstract

Two-dimensional quantum gravity has led to numerous curious results since it was developed in the 1980s. Following the method of the original works, we derive the effective action for the simplest modifications of the theory, when the matter is immersed into Poincar\'e non-invariant states. The latter ones, as it has been shown recently, may have a considerable response in the theories with gravity, and the 2d Universe is a basic example to start with the deep investigation of these phenomena. We consider the cases of the insertion of the primary state of CFT and the thermal distribution of conformal matter.