Environmental Dependence of Masses and Coupling Constants

By K. Olive, M. Pospelov. 2007

289 citations recorded by the source corpus.

We construct a class of scalar field models coupled to matter that lead to the dependence of masses and coupling constants on the ambient matter density. Such models predict a deviation of couplings measured on the Earth from values determined in low-density astrophysical environments, but do not necessarily require the evolution of coupling constants with the redshift in the recent cosmological past. Additional laboratory and astrophysical tests of $\ensuremath{\Delta}\ensuremath{\alpha}$ and $\ensuremath{\Delta}({m}_{p}/{m}_{e})$ as functions of the ambient matter density are warranted.

Subfields: Astronomy and Astrophysics

View Paper: https://www.semanticscholar.org/paper/26d68dab92642dd1fd2d2a4e3c3946ed6ee527b5

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In Astronomy and Astrophysics

Citations in the corpus

Superradiance (2015, background): “with p = 1, 2 popular choices [519, 520].”
Search for New Physics with Atoms and Molecules (2017, methodology): “To avoid these observational constraints, there have been a number of proposals that the new scalar component of gravity is somehow screened within the solar system, for example via self-interactions (Khoury and Weltman, 2004b; Olive and Pospelov, 2008), modified Newtonian dynamics”
Cosmology and Fundamental Physics with the Euclid Satellite (2012, methodology): “The Olive–Pospelov model (Olive and Pospelov 2008) again uses a scalar conformally coupled to matter.”
Symmetron Cosmology (2011, background): “Recently, two of us have proposed a third screening mechanism, called the symmetron [87], based in part on earlier work [88, 89].”
Varying Constants, Gravitation and Cosmology (2010, methodology): “Models based on the Lagrangian (209) and exhibiting the chameleon mechanism were investigated in [398].”
Spatial variation in the fine-structure constant – new results from VLT/UVES (2012, background): “This could be possible if α depends on the local gravitational potential or density (Khoury & Weltman 2004; Mota & Shaw 2007; Olive & Pospelov 2008) – laboratory conditions differ quite significantly in this regard to the conditions in the quasar absorbers.”
Single-field consistency relations of large scale structure part II: resummation and redshift space (2013, background): “For chameleon [27] or symmetron [28, 29, 30] screening the EP violation can be of order unity between screened and unscreened objects.”