Raiders of the lost spacetime

Abstract

Spacetime as we know and love it is lost in most approaches to quantum gravity. For many of these approaches, as inchoate and incomplete as they may be, one of the main challenges is to relate what they take to be the fundamental non-spatiotemporal structure of the world back to the classical spacetime of GR. The present essay investigates how spacetime is lost and how it may be regained in one major approach to quantum gravity, loop quantum gravity.

33 pages, 3 figures. Forthcoming in Dennis Lehmkuhl (ed.), Towards a Theory of Spacetime Theories, Birkhäuser

References in corpus (4)

• Disordered locality in loop quantum gravity states
• A new look at loop quantum gravity
• Generic predictions of quantum theories of gravity
• Disordered Locality as an Explanation for the Dark Energy

Cited by in corpus (7)

• A Primer on Energy Conditions
• Laws beyond spacetime
• Appearing Out of Nowhere: The Emergence of Spacetime in Quantum Gravity
• The multiple realizability of general relativity in quantum gravity
• Spacetime is as spacetime does
• Empirical structure physicalism and realism, Hempel's dilemma, and an optimistic meta-induction
• Against the disappearance of spacetime in quantum gravity