This book addresses the two most important questions about time: (1) What is time, and is it fundamental or emergent? (2) Why is there such an arrow of time, closely related to the mystery of the initial state of the universe, and why do the cosmic and thermodynamic arrows agree?
These issues are discussed here by some of the brightest minds in the field, and each offers a new or different perspective on the debate. These views delve into the most difficult research topic in physics, also describing the latest cutting edge research on the subject. The book also offers readers a comparison between the different outlooks of philosophy and physics on the puzzle of time.
Although this book is intended to be useful for research purposes, most chapters are also accessible to a more general audience of scientifically educated readers looking for deeper insights.
Table of ContentsIntroduction.- Time after Time; R. Vaas.- Fundamental Loss of Quantum Coherence from Quantum Gravity; R. Gambini et al.- The Clock Ambiguity: Implications and New Developments; A. Albrecht, A. Iglesias.- Holographic Cosmology and the Arrow of Time; T. Banks.- The Emergent Nature of Time and the Complex Numbers in Quantum Cosmology; G.W. Gibbons.- The Phantom Bounce: A New Proposal for an Oscillating Cosmology; K. Freese et al.- Notes on Time's Enigma; L. Mersini-Houghton.- A Momentous Arrow of Time; M. Bojowald.- Can the Arrow of Time be understood from Quantum Cosmology?; C. Kiefer.- Open Questions regarding the Arrow of Time; H.D. Zeh.