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Quantum gravity, shadow states and quantum mechanics

Abhay Ashtekar1,2, Stephen Fairhurst1,2,3 and Joshua L Willis1

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A programme was recently initiated to bridge the gap between the Planck scale physics described by loop quantum gravity and the familiar low energy world. We illustrate the conceptual problems and their solutions through a toy model: quantum mechanics of a point particle. The model can also serve as a simple introduction to many of the ideas and constructions underlying quantum geometry. Maxwell fields will be discussed in the second paper of this series which further develops the programme.


PACS

04.60.Pp Loop quantum gravity, quantum geometry, spin foams

03.65.-w Quantum mechanics

MSC

81S10 Geometry and quantization, symplectic methods (See also 53D50)

83Cxx General relativity

Subjects

Gravitation and cosmology

Quantum information and quantum mechanics

Dates

Issue 6 (21 March 2003)

Received 26 November 2002

Published 19 February 2003



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