Experiment to detect dark energy forces using atom interferometry
The accelerated expansion of the universe motivates a wide class of scalar field theories that modify gravity on large scales. In regions where the weak field limit of General Relativity has been confirmed by experiment, such theories need a screening mechanism to suppress the new force. We have mea...
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| Published in | arXiv.org |
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| Main Authors | , , , , , |
| Format | Paper Journal Article |
| Language | English |
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Ithaca
Cornell University Library, arXiv.org
19.12.2018
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| ISSN | 2331-8422 |
| DOI | 10.48550/arxiv.1812.08244 |
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| Abstract | The accelerated expansion of the universe motivates a wide class of scalar field theories that modify gravity on large scales. In regions where the weak field limit of General Relativity has been confirmed by experiment, such theories need a screening mechanism to suppress the new force. We have measured the acceleration of an atom toward a macroscopic test mass inside a high vacuum chamber, where the new force is unscreened in some theories. Our measurement, made using atom interferometry, shows that the attraction between atoms and the test mass does not differ appreciably from Newtonian gravity. This result places stringent limits on the free parameters in chameleon and symmetron theories of modified gravity. |
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| AbstractList | The accelerated expansion of the universe motivates a wide class of scalar field theories that modify gravity on large scales. In regions where the weak field limit of General Relativity has been confirmed by experiment, such theories need a screening mechanism to suppress the new force. We have measured the acceleration of an atom toward a macroscopic test mass inside a high vacuum chamber, where the new force is unscreened in some theories. Our measurement, made using atom interferometry, shows that the attraction between atoms and the test mass does not differ appreciably from Newtonian gravity. This result places stringent limits on the free parameters in chameleon and symmetron theories of modified gravity. Phys. Rev. Lett. 123, 061102 (2019) The accelerated expansion of the universe motivates a wide class of scalar field theories that modify gravity on large scales. In regions where the weak field limit of General Relativity has been confirmed by experiment, such theories need a screening mechanism to suppress the new force. We have measured the acceleration of an atom toward a macroscopic test mass inside a high vacuum chamber, where the new force is unscreened in some theories. Our measurement, made using atom interferometry, shows that the attraction between atoms and the test mass does not differ appreciably from Newtonian gravity. This result places stringent limits on the free parameters in chameleon and symmetron theories of modified gravity. |
| Author | Sabulsky, Dylan Dutta, Indranil Hinds, E A Burrage, Clare Copeland, Edmund J Elder, Benjamin |
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| BackLink | https://doi.org/10.1103/PhysRevLett.123.061102$$DView published paper (Access to full text may be restricted) https://doi.org/10.48550/arXiv.1812.08244$$DView paper in arXiv |
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| DOI | 10.48550/arxiv.1812.08244 |
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| Snippet | The accelerated expansion of the universe motivates a wide class of scalar field theories that modify gravity on large scales. In regions where the weak field... Phys. Rev. Lett. 123, 061102 (2019) The accelerated expansion of the universe motivates a wide class of scalar field theories that modify gravity on large... |
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| SubjectTerms | Atom interferometry Atomic properties Dark energy Gravitation High vacuum Interferometry Parameter modification Physics - Atomic Physics Physics - Cosmology and Nongalactic Astrophysics Physics - General Relativity and Quantum Cosmology Physics - High Energy Physics - Phenomenology Relativity Universe Vacuum chambers |
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| Title | Experiment to detect dark energy forces using atom interferometry |
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