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2012

General Covariance and Background Independence in Quantum Gravity

Bärenz, Manuel

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The history of general relativity suggests that in absence of experimental data, constructing a theory on philosophical first principles can lead to a very useful theory as well as to ground-breaking insights about physical reality.

The two related concepts of general covariance and background independence are some of these principles and play a central role in general relativity.
A definition for them will be proposed and discussed.
Constructing a theory of quantum gravity -- the sought-after unification of general relativity and quantum mechanics -- could profit from the same approach.

General Covariance and Background Independence in Quantum Gravity · Around

Built on

Relativistic spin networks and quantum gravity
John Barrett and Louis Crane · 1997
Earlier work this paper cites.
Anti de sitter space and holography
Edward Witten · 1998
Earlier work this paper cites.
Quantum Gravity
Carlo Rovelli · 2007
Earlier work this paper cites.

Similar

Algebraic Quantum Gravity (AQG). II. Semiclassical Analysis
Thomas Thiemann and Kristina Giesel · 2007
Cited alongside, same era.
Lqg vertex with finite immirzi parameter
Jonathan Engle, Etera Livine, Roberto Pereira, and Carlo Rovelli · 2008
Cited alongside, same era.
Gauge/gravity duality
Gary Horowitz and Joseph Polchinski · 2009
Cited alongside, same era.
Background Independence
Original
Gordon Belot
Cited in the paper.
The ds/cft correspondence
Andrew Strominger
Cited in the paper.

Then

Comments on background independence and gauge redundancies
Moshe Rozali · 2009
Later among the works it cites.
String field theory
Washington Taylor · 2009
Later among the works it cites.

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