Curved Backgrounds in Emergent Gravity
| Autor: | Yiyu Zhou, Shikha Chaurasia, Joshua Erlich |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Physics
High Energy Physics - Theory Gravity (chemistry) Physics and Astronomy (miscellaneous) Field (physics) 010308 nuclear & particles physics Space time Scalar (physics) FOS: Physical sciences General Relativity and Quantum Cosmology (gr-qc) 01 natural sciences General Relativity and Quantum Cosmology Gravitation Theoretical physics High Energy Physics - Theory (hep-th) Problem of time 0103 physical sciences Quantum gravity Covariant transformation 010306 general physics |
| DOI: | 10.48550/arxiv.1710.07262 |
| Popis: | Field theories that are generally covariant but nongravitational at tree level typically give rise to an emergent gravitational interaction whose strength depends on a physical regulator. We consider emergent gravity models in which scalar fields assume the role of clock and rulers, addressing the problem of time in quantum gravity. We discuss the possibility of nontrivial dynamics for clock and ruler fields, and describe some of the consequences of those dynamics for the emergent gravitational theory. Comment: 16 pages, 4 eps figures. Minor typos corrected, one reference added |
| Databáze: | OpenAIRE |
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