New Book on Loop Quantum GravityPublished February 4, 2019
In this space I have previously expressed my reasons for believing that loop quantum gravity is a more promising avenue forward than the various versions of string theory and M theory when it comes to reconciling general relativity with quantum field theory. I therefore welcome an outstanding new new popular treatment of the subject by Jim Baggott entitled Quantum Space: Loop Quantum Gravity and the Search for the Structure of Space, Time, and the Universe (Oxford University Press, 2018) that explains the subject from a historical perspective. This new book is fully accessible to the non-mathematical reader. The author builds his narrative around the biographies of two of the leading loop quantum gravity theorists Lee Smolin and Carlo Rovelli. He also weaves through the narrative important insights contributed by Abhay Ashtekar at Pennsylvania State University, John Baez at University of California-Riverside, Martin Bojowald at Pennsylvania State University, Alejandro Corichi at National Autonomous University of Mexico, George Ellis at University of Cape Town, Ted Jacobson at University of Maryland, Kirill Krasnov at University of Nottingham, Jorge Pullin at Louisiana State University, and Peter Woit at Columbia University. Jim Baggott’s new treatment of the subject and effectively levels the playing field with the many popular treatments of string theory written by Leonard Susskind among others. It is a finely crafted gem of a book that deserves a wide readership.