The case for background independence

@article{Smolin2005TheCF,
  title={The case for background independence},
  author={Lee Smolin},
  journal={arXiv: High Energy Physics - Theory},
  year={2005}
}
  • L. Smolin
  • Published 25 July 2005
  • Philosophy, Physics
  • arXiv: High Energy Physics - Theory
The aim of this paper is to explain carefully the arguments behind the assertion that the correct quantum theory of gravity must be background independent. We begin by recounting how the debate overwhetherquantum gravity must be background independent is a continuation of a long-standing argument in the history of physics and philosophy over whether space and time are relational or absolute. This leads to a careful statement of what physicists mean when we speak of background independence… 
Background-Independence from the Perspective of Gauge Theory
We consider two concepts often discussed as significant features of general relativity (particularly when contrasted with the other forces of the Standard Model): background independence and
Background independence: Lessons for further decades of dispute
  • Trevor Teitel
  • Philosophy
    Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics
  • 2019
Cosmological consequences of Quantum Gravity proposals
In this thesis, we study the implications of Quantum Gravity models for the dynamics of spacetime and the ensuing departures from classical General Relativity. The main focus is on cosmological
A pr 2 00 6 1 Towards Gravity from the Quantum
The different approaches to quantum gravity, almost all of which are described in detail in the rest of this volume, can be classified according to what they say about spacetime and gravity. First,
Background-independence
Intuitively speaking, a classical field theory is background-independent if the structure required to make sense of its equations is itself subject to dynamical evolution, rather than being imposed
Quantum Gravity: Motivations and Alternatives
The mutual conceptual incompatibility between General Relativity and Quantum Mechanics / Quantum Field Theory is generally seen as the most essential motivation for the development of a theory of
Problems with the Cosmological Constant Problem
The cosmological constant problem is widely viewed as an important barrier and hint to merging quantum field theory and general relativity. It is a barrier insofar as it remains unsolved, and a
The Internal and External Problems of String Theory: A Philosophical View
String theory is at the moment the only advanced approach to a unification of all interactions, including gravity. But, in spite of the more than 30 years of its existence, it does not make any
String Theory - From Physics to Metaphysics
Currently, string theory represents the only advanced approach to a unification of all interactions, including gravity. In spite of the more than thirty years of its existence, the sequence of
...
...

References

SHOWING 1-10 OF 71 REFERENCES
Background independent quantum gravity: A Status report
The goal of this review is to present an introduction to loop quantum gravity—a background-independent, non-perturbative approach to the problem of unification of general relativity and quantum
An invitation to loop quantum gravity
We describe the basic assumptions and key results of loop quantum gravity, which is a background independent approach to quantum gravity. The emphasis is on the basic physical principles and how one
Introduction to Modern Canonical Quantum General Relativity
This is an introduction to the by now fifteen years old research field of canonical quantum general relativity, sometimes called "loop quantum gravity". The term "modern" in the title refers to the
Quantum gravity with a positive cosmological constant
A quantum theory of gravity is described in the case of a positive cosmological constant in 3 + 1 dimensions. Both old and new results are described, which support the case that loop quantum gravity
The present moment in quantum cosmology: challenges to the arguments for the elimination of time
Barbour, Hawking, Misner and others have argued that time cannot play an essential role in the formulation of a quantum theory of cosmology. Here we present three challenges to their arguments, taken
Falsifiable predictions from semiclassical quantum gravity
Quantum theory from quantum gravity
We provide a mechanism by which, from a background-independent model with no quantum mechanics, quantum theory arises in the same limit in which spatial properties appear. Starting with an arbitrary
Background independent geometry and Hopf cyclic cohomology
This is primarily a survey of the way in which Hopf cyclic cohomology has emerged and evolved, in close relationship with the application of the noncommutative local index formula to transverse index
What is observable in classical and quantum gravity
The problem of the identification of the observable quantities in quantum gravity (or in any diffeomorphism invariant quantum theory) is considered. The author recalls Einstein's 'hole argument' on
...
...