Quantum Space: Loop Quantum Gravity and the Search for the Structure of Space, Time, and the Universe (Paperback)

Quantum Space: Loop Quantum Gravity and the Search for the Structure of Space, Time, and the Universe By Jim Baggott Cover Image
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Description


Combining clear discussions of both quantum theory and general relativity, this book offers one of the first efforts to explain the new quantum theory of space and time.

Today we are blessed with two extraordinarily successful theories of physics. The first is Albert Einstein's general theory of relativity, which describes the large-scale behaviour of matter in a curved spacetime. This theory is the basis for the standard model of big bang cosmology. The discovery
of gravitational waves at the LIGO observatory in the US (and then Virgo, in Italy) is only the most recent of this theory's many triumphs.

The second is quantum mechanics. This theory describes the properties and behaviour of matter and radiation at their smallest scales. It is the basis for the standard model of particle physics, which builds up all the visible constituents of the universe out of collections of quarks, electrons and
force-carrying particles such as photons. The discovery of the Higgs boson at CERN in Geneva is only the most recent of this theory's many triumphs.

But, while they are both highly successful, these two structures leave a lot of important questions unanswered. They are also based on two different interpretations of space and time, and are therefore fundamentally incompatible. We have two descriptions but, as far as we know, we've only ever had
one universe. What we need is a quantum theory of gravity.

Approaches to formulating such a theory have primarily followed two paths. One leads to String Theory, which has for long been fashionable, and about which much has been written. But String Theory has become mired in problems. In this book, Jim Baggott describes the road less travelled: an
approach which takes relativity as its starting point, and leads to a structure called Loop Quantum Gravity. Baggott tells the story through the careers and pioneering work of two of the theory's most prominent contributors, Lee Smolin and Carlo Rovelli.

About the Author


Jim Baggott, Freelance science writer Jim Baggott is a freelance science writer. He was a lecturer in chemistry at the University of Reading but left to work with Shell International Petroleum Company, and then as an independent business consultant and trainer. His many books include Quantum Reality: The Quest for the RealMeaning of Quantum Mechanics DS A Game of Theories (OUP, 2020), Mass: The Quest to Understand Matter from Greek Atoms to Quantum Fields (OUP, 2017), Origins: The Scientific Story of Creation (OUP, 2015), Higgs: The Invention and Discovery of the 'God Particle' (OUP, 2012), The Quantum Story: AHistory in 40 Moments (OUP, 2011), and A Beginner's Guide to Reality (Penguin, 2005).


Product Details
ISBN: 9780198809128
ISBN-10: 0198809123
Publisher: Oxford University Press, USA
Publication Date: June 24th, 2022
Pages: 448
Language: English
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