Dilaton-induced open quantum dynamics
arXiv:2306.10896 · doi:10.1140/epjc/s10052-023-11939-4
Abstract
In modern cosmology, scalar fields with screening mechanisms are often used as explanations for phenomena like dark energy or dark matter. Amongst a zoo of models, the environment dependent dilaton, screened by the Polyakov-Damour mechanism, is one of the least constrained ones. Using recently developed path integral tools for directly computing reduced density matrices, we study the open quantum dynamics of a probe, modelled by another real scalar field, induced by interactions with an environment comprising fluctuations of a dilaton. As the leading effect, we extract a correction to the probe's unitary evolution, which can be observed as a frequency shift. Assuming the scalar probe to roughly approximate a cold atom in matter wave interferometry, we show that comparing the predicted frequency shifts in two experimentally distinct setups has the potential to exclude large parts of the dilaton parameter space.
22 pages, 10 figures
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Cited by in corpus (14)
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- In-in formalism for the entropy of quantum fields in curved spacetimes
- An Open Effective Field Theory for light in a medium
- Search for environment-dependent dilatons
- Search for dark energy with neutron interferometry
- Imprints of screened dark energy on nonlocal quantum correlations
- A particle's perspective on screening mechanisms
- Frequency shifts induced by light scalar fields
- Dynamical Casimir effect with screened scalar fields
- Hint of dark matter-dark energy interaction in DESI DR2 and current cosmological dataset?
- Open system dynamics in interacting quantum field theories
- Equivalence of scalar-tensor theories and scale-dependent gravity
- Quantum and thermal pressures from light scalar fields
- Particles in finite volumes and a toy model of decaying neutrons