391 citations · 2.5k across the 46 of their papers we have counts for
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Chameleon Fragmentation
Philippe Brax, Amol Upadhye
A scalar field dark energy candidate could couple to ordinary matter and photons, enabling its detection in laboratory experiments. Here we study the quantum properties of the cham…
The quest for axions and other new light particles
K. Baker, G. Cantatore, S. A. Cetin +17
Standard Model extensions often predict low-mass and very weakly interacting particles, such as the axion. A number of small-scale experiments at the intensity/precision frontier a…
Particles and forces from chameleon dark energy
Amol Upadhye
Chameleon dark energy is a matter-coupled scalar field which hides its fifth forces locally by becoming massive. We estimate torsion pendulum constraints on the residual fifth forc…
Dark energy fifth forces in torsion pendulum experiments
Amol Upadhye
The chameleon scalar field is a matter-coupled dark energy candidate whose nonlinear self-interaction partially screens its fifth force at laboratory scales. Nevertheless, small-sc…
Symmetron dark energy in laboratory experiments
Amol Upadhye
The symmetron scalar field is a matter-coupled dark energy candidate which effectively decouples from matter in high-density regions through a symmetry restoration. We consider a p…
Designing dark energy afterglow experiments
Amol Upadhye, Jason H. Steffen, Aaron S. Chou
Chameleon fields, which are scalar field dark energy candidates, can evade fifth force constraints by becoming massive in high-density regions. However, this property allows chamel…