Collective atom-light interaction and spin-squeezing mediated by an optical cavity
| Full text | |
| Author(s): |
Brax, Philippe
;
Fichet, Sylvain
Total Authors: 2
|
| Document type: | Journal article |
| Source: | PHYSICS OF THE DARK UNIVERSE; v. 42, p. 18-pg., 2023-12-01. |
| Abstract | |
We study the quantum force between classical objects mediated by massive scalar fields bilinearly coupled to matter. The existence of such fields is motivated by dark matter, dark energy, and by the possibility of a hidden sector beyond the Standard Model. We introduce the quantum work felt by an arbitrary (either rigid or deformable) classical body in the presence of the scalar and show that it is finite upon requiring conservation of matter. As an example, we explicitly show that the quantum pressure inside a Dirichlet sphere is finite - up to renormalizable divergences. With this method we compute the scalar-induced quantum force in simple planar geometries. In plane-point geometry we show how to compute the contribution of the quantum force to the phase shift observable in atom interferometers. We show that atom interferometry is likely to become a competitive search method for light particles bilinearly coupled to matter, provided that the interferometer arms have lengths below & SIM; 10 cm.& COPY; 2023 Elsevier B.V. All rights reserved. (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 |