Numerical forecasts for lab experiments constraining modified gravity: The chameleon model

Research output: Contribution in Book/Catalog/Report/Conference proceedingConference contribution

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 languageEnglish
Title of host publication14th Marcel Grossman Meeting On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories, Proceedings
EditorsRemo Ruffini, Massimo Bianchi, Remo Ruffini, Robert T Jantzen
PublisherWorld Scientific Publishing Co Pte Ltd
Pages1259-1264
Number of pages6
ISBN (Electronic)9789813226593
Publication statusPublished - 1 Jan 2018
Event14th Marcel Grossman Meeting On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories - Rome, Italy
Duration: 12 Jul 201518 Jul 2015

Conference

Conference14th Marcel Grossman Meeting On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories
CountryItaly
CityRome
Period12/07/1518/07/15

Keywords

  • Dark energy
  • Lab experiment
  • Modified gravity

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    Schlögel, S., Clesse, S., & Füzfa, A. (2018). Numerical forecasts for lab experiments constraining modified gravity: The chameleon model. In R. Ruffini, M. Bianchi, R. Ruffini, & R. T. Jantzen (Eds.), 14th Marcel Grossman Meeting On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories, Proceedings (pp. 1259-1264). World Scientific Publishing Co Pte Ltd.