Abstract
Current acceleration of the cosmic expansion leads to coincidence as well as fine-tuning issues in the framework of general relativity. Dynamical scalar fields have been introduced in response of these problems, some of them invoking screening mechanisms for passing local tests of gravity. Recent lab experiments based on atom interferometry in a vacuum chamber have been proposed for testing modified gravity models. So far only analytical computations have been used to provide forecasts. We derive numerical solutions for chameleon models that take into account the effect of the vacuum chamber wall and its environment. With this realistic profile of the chameleon field in the chamber, we refine the forecasts that were derived analytically. We finally highlight specific effects due to the vacuum chamber that are potentially interesting for future experiments.
Original language | English |
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Title of host publication | 14th Marcel Grossman Meeting On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories, Proceedings |
Editors | Massimo Bianchi, Robert T Jantzen, Remo Ruffini, Remo Ruffini |
Publisher | World Scientific Publishing Co Pte Ltd |
Pages | 1259-1264 |
Number of pages | 6 |
ISBN (Electronic) | 9789813226593 |
DOIs | |
Publication status | Published - 1 Jan 2018 |
Event | 14th Marcel Grossman Meeting On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories - Rome, Italy Duration: 12 Jul 2015 → 18 Jul 2015 |
Conference
Conference | 14th Marcel Grossman Meeting On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories |
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Country | Italy |
City | Rome |
Period | 12/07/15 → 18/07/15 |
Keywords
- Dark energy
- Lab experiment
- Modified gravity