# Connecting Loop Quantum Gravity and String Theory via Quantum Geometry

@article{Vaid2021ConnectingLQ, title={Connecting Loop Quantum Gravity and String Theory via Quantum Geometry}, author={Deepak Vaid}, journal={Springer Proceedings in Physics}, year={2021} }

We argue that String Theory and Loop Quantum Gravity can be thought of as describing different regimes of a single unified theory of quantum gravity. LQG can be thought of as providing the pre-geometric exoskeleton out of which macroscopic geometry emerges and String Theory then becomes the \emph{effective} theory which describes the dynamics of that exoskeleton. The core of the argument rests on the claim that the Nambu-Goto action of String Theory can be viewed as the expectation value of the…

## 4 Citations

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## References

SHOWING 1-10 OF 40 REFERENCES

Emergence of stringlike physics from Lorentz invariance in loop quantum gravity

- Physics
- 2014

We consider a quantum field theory on a spherically symmetric quantum spacetime described by loop quantum gravity. The spin network description of spacetime in such a theory leads to equations for…

A note on quantum supergravity and AdS/CFT

- Physics
- 2015

We note that the non-perturbative quantisation of supergravity as recently investigated using loop quantum gravity techniques provides an opportunity to probe an interesting sector of the AdS/CFT…

The LQG string—loop quantum gravity quantization of string theory: I. Flat target space

- Physics
- 2006

We combine (i) background-independent loop quantum gravity (LQG) quantization techniques, (ii) the mathematically rigorous framework of algebraic quantum field theory (AQFT) and (iii) the theory of…

Quantum Gravity via Causal Dynamical Triangulations

- Physics
- 2014

Causal dynamical triangulations (CDT ) represent a lattice regularization of the sum over spacetime histories, providing us with a nonperturbative formulation of quantum gravity. The ultraviolet…

Black holes in full quantum gravity

- Physics
- 2009

Quantum black holes have been studied extensively in quantum gravity and string theory, using various semiclassical or background-dependent approaches. We explore the possibility of studying black…

Entropy of Quantum Black Holes

- Physics
- 2012

In the Loop Quantum Gravity, black holes (or even more general Isolated Hori- zons) are described by a SU(2) Chern{Simons theory. There is an equivalent formulation of the horizon degrees of freedom…

An Introduction to String Theory

- Physics
- 2012

We give a pedagogical introduction to string theory, D-branes and p-brane solutions. 1 Introductory remarks These notes are based on lectures given at the 271-th WE-Haereus-Seminar ‘Aspects of…

Background independent quantum gravity: A Status report

- Physics
- 2004

The goal of this review is to present an introduction to loop quantum gravity—a background-independent, non-perturbative approach to the problem of unification of general relativity and quantum…