Article
The Equivalence Principle in a Quantum World
International Journal of Modern Physics D
(2015)
Abstract
We show how modern methods can be applied to quantum gravity at low energy. We test
how quantum corrections challenge the classical framework behind the Equivalence Principle, for
instance through introduction of non-locality from quantum physics, embodied in the Uncertainty
Principle. When the energy is small we now have the tools to address this conflict explicitly.
Despite the violation of some classical concepts, the EP continues to provide the core of the
quantum gravity framework through the symmetry - general coordinate invariance - that is used to
organize the effective field theory.
Keywords
- Physics,
- Equivalence Principle,
- Quantum World
Disciplines
Publication Date
2015
DOI
10.1142/S0218271815440137
Publisher Statement
Electronic version of an article published as International Journal of Modern Physics D, 24, 1544013, 2015, 5 pages 10.1142/S0218271815440137 © copyright World Scientific Publishing Company http://www.worldscientific.com/doi/abs/10.1142/S0218271815440137
Citation Information
John Donoghue, N. E. J Bjerrum-Bohr, Basem K Mahmoud El-Menoufi, Barry R Holstein, et al.. "The Equivalence Principle in a Quantum World" International Journal of Modern Physics D Vol. 24 (2015) Available at: http://works.bepress.com/john_donoghue/171/