| Full text | |
| Author(s): |
Brax, Philippe
;
Fichet, Sylvain
Total Authors: 2
|
| Document type: | Journal article |
| Source: | Physical Review D; v. 99, n. 10, p. 12-pg., 2019-05-20. |
| Abstract | |
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 Eot-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. (AU) | |
| FAPESP's process: | 18/11721-4 - Particle physics and Gravity Beyond the Standard Model: Warped structures, Chameleons and Holography |
| Grantee: | Sylvain Pierre Joseph Fichet |
| Support Opportunities: | Scholarships abroad - Research Internship - Post-doctor |
| FAPESP's process: | 14/21477-2 - Particle physics at the TeV scale and beyond: models and interpretations |
| Grantee: | Sylvain Pierre Joseph Fichet |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |