---
product_id: 215001727
title: "Covariant Loop Quantum Gravity"
price: "€ 97.91"
currency: EUR
in_stock: true
reviews_count: 13
url: https://www.desertcart.gr/products/215001727-covariant-loop-quantum-gravity
store_origin: GR
region: Greece
---

# Covariant Loop Quantum Gravity

**Price:** € 97.91
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- **What is this?** Covariant Loop Quantum Gravity
- **How much does it cost?** € 97.91 with free shipping
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Review: A great introduction to an exciting field - This is an exciting subject to read about. The opening pages discuss how at the scale of ten to the power of minus thirty three centimeters , the Planck scale , strange things happen. General relativity predicts that a particle confined to a very small space should form a black hole. The Schwarzschild radius is proportional to the mass of the particle assuming the particle is sufficiently concentrated to form a black hole. General relativity allows the Schwarzschild radius to be arbitrarily small. Giving correct numerical factors and combining the argument with Quantum Mechanics in terms of the Heisenberg uncertainty principal predicts a minimum size for the localization and this turns out to be Plank scale. This argument is detailed in the book by the authors with correct numerical factors given. The argument is in some ways academic because micro-black holes probably do not exist but it does show an inherit contradiction between General Relativity and Quantum Mechanics. The argument also shows the scale at which we expect quantum gravity to be important. The argument outlined was given by Bronstein an early pioneer of Quantum Gravity. Quantum Gravity is important for example to understand early cosmology of the universe but mostly it is to try to resolve the inherit contradictions between Quantum Theory and General Relativity. These contradictions can be seen in other ways. The book requires understanding of SU(2), SO(1,3), and their irreducible representations in spinor space. Very early on by looking at a tetrahedron and postulating a quantum relation similar to that of angular momentum in elementary quantum mechanics we deduce that area is quantized for the tetrahedron (just as the total angular momentum is quantized in quantum mechanics). We also deduce that distance itself has a fuzziness at this scale! The book proceeds from there. The book is not "elementary" since there is much impressive math and physics but this should not put one off reading this book but instead be motivation for reading from external sources to fill in the gaps and gain a better understanding of this exciting subject. To me it does seem like this theory is the correct theory for uniting General Relativity and Quantum Theory rather than thinking about higher dimensional spaces and as further evidence of this there is a chapter (Chapter 8, Continuum limit) showing how in outline Einstein's equations can be deduced from these spinor equations. A complete understanding would only be achieved by a specialist in the field but this should not put one off reading about what has been achieved. The ideas here will definitely expand your horizons and this is a must to read for anyone interested in Physics. However to gain the most from this book supplementary reading will definitely be necessary.
Review: Kindle Edition - The problem with readability of the equations has been fixed in the version I downloaded. This introduction is very readable, but as others have stated it does require considerable prior knowledge and facility with QM and GR.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Best Sellers Rank | #889,657 in Books ( See Top 100 in Books ) #95 in Mathematical Physics (Books) #229 in Cosmology (Books) #257 in Quantum Theory (Books) |
| Customer Reviews | 4.4 4.4 out of 5 stars (97) |
| Dimensions  | 7.44 x 0.61 x 9.69 inches |
| Edition  | 1st |
| ISBN-10  | 110881025X |
| ISBN-13  | 978-1108810258 |
| Item Weight  | 14.1 ounces |
| Language  | English |
| Print length  | 268 pages |
| Publication date  | May 14, 2020 |
| Publisher  | Cambridge University Press |

## Images

![Covariant Loop Quantum Gravity - Image 1](https://m.media-amazon.com/images/I/717REClkWHL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ A great introduction to an exciting field
*by N***S on December 8, 2017*

This is an exciting subject to read about. The opening pages discuss how at the scale of ten to the power of minus thirty three centimeters , the Planck scale , strange things happen. General relativity predicts that a particle confined to a very small space should form a black hole. The Schwarzschild radius is proportional to the mass of the particle assuming the particle is sufficiently concentrated to form a black hole. General relativity allows the Schwarzschild radius to be arbitrarily small. Giving correct numerical factors and combining the argument with Quantum Mechanics in terms of the Heisenberg uncertainty principal predicts a minimum size for the localization and this turns out to be Plank scale. This argument is detailed in the book by the authors with correct numerical factors given. The argument is in some ways academic because micro-black holes probably do not exist but it does show an inherit contradiction between General Relativity and Quantum Mechanics. The argument also shows the scale at which we expect quantum gravity to be important. The argument outlined was given by Bronstein an early pioneer of Quantum Gravity. Quantum Gravity is important for example to understand early cosmology of the universe but mostly it is to try to resolve the inherit contradictions between Quantum Theory and General Relativity. These contradictions can be seen in other ways. The book requires understanding of SU(2), SO(1,3), and their irreducible representations in spinor space. Very early on by looking at a tetrahedron and postulating a quantum relation similar to that of angular momentum in elementary quantum mechanics we deduce that area is quantized for the tetrahedron (just as the total angular momentum is quantized in quantum mechanics). We also deduce that distance itself has a fuzziness at this scale! The book proceeds from there. The book is not "elementary" since there is much impressive math and physics but this should not put one off reading this book but instead be motivation for reading from external sources to fill in the gaps and gain a better understanding of this exciting subject. To me it does seem like this theory is the correct theory for uniting General Relativity and Quantum Theory rather than thinking about higher dimensional spaces and as further evidence of this there is a chapter (Chapter 8, Continuum limit) showing how in outline Einstein's equations can be deduced from these spinor equations. A complete understanding would only be achieved by a specialist in the field but this should not put one off reading about what has been achieved. The ideas here will definitely expand your horizons and this is a must to read for anyone interested in Physics. However to gain the most from this book supplementary reading will definitely be necessary.

### ⭐⭐⭐⭐⭐ Kindle Edition
*by M***R on June 23, 2019*

The problem with readability of the equations has been fixed in the version I downloaded. This introduction is very readable, but as others have stated it does require considerable prior knowledge and facility with QM and GR.

### ⭐⭐⭐⭐ Physics
*by C***R on January 26, 2025*

Quantum Loop Gravity made me quantumly loop my gravity.

## Frequently Bought Together

- Covariant Loop Quantum Gravity
- General Relativity: The Essentials
- Seven Brief Lessons on Physics

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-02-25*