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Quantum chameleons

Brax, Philippe and Fichet, Sylvain (2019) Quantum chameleons. Physical Review D, 99 (10). Art. No. 104049. ISSN 2470-0010. doi:10.1103/PhysRevD.99.104049.

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We initiate a quantum treatment of chameleonlike particles, deriving classical and quantum forces directly from the path integral. It is found that the quantum force can potentially dominate the classical one by many orders of magnitude. We calculate the quantum chameleon pressure between infinite plates, which is found to interpolate between the Casimir and the integrated Casimir-Polder pressures, respectively in the limits of full screening and no screening. To this end we calculate the chameleon propagator in the presence of an arbitrary number of one-dimensional layers of material. For the Eöt-Wash experiment, the five-layer propagator is used to take into account the intermediate shielding sheet, and it is found that the presence of the sheet enhances the quantum pressure by two orders of magnitude. As an example of implication, we show that in both the standard chameleon and symmetron models, large and previously unconstrained regions of the parameter space are excluded once the quantum pressure is taken into account.

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Additional Information:© 2019 Published by the American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3. Received 19 October 2018; published 20 May 2019. S. F. thanks Orsay University for hospitality and funding. This work is supported by the São Paulo Research Foundation (FAPESP) under Grants No. 2011/11973, No. 2014/21477-2 and No. 2018/11721-4. This work is supported in part by the EU Horizon 2020 research and innovation program under the Marie-Sklodowska Grant No. 690575. This article is based upon work related to the COST Action CA15117 (CANTATA) supported by COST (European Cooperation in Science and Technology).
Group:Walter Burke Institute for Theoretical Physics
Funding AgencyGrant Number
Fundação de Amparo à Pesquisa do Estado de Sao Paulo (FAPESP)2011/11973
Fundação de Amparo à Pesquisa do Estado de Sao Paulo (FAPESP)2014/21477-2
Fundação de Amparo à Pesquisa do Estado de Sao Paulo (FAPESP)2018/11721-4
Marie Curie Fellowship690575
European Cooperation in Science and Technology (COST)CA15117
Issue or Number:10
Record Number:CaltechAUTHORS:20190520-130718510
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:95601
Deposited By: Tony Diaz
Deposited On:20 May 2019 20:38
Last Modified:16 Nov 2021 17:13

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