1.5k citations · 12.4k across the 121 of their papers we have counts for
3 papers · 1 filter
Ellipticity Weakens Chameleon Screening
Clare Burrage, Edmund J. Copeland, James Stevenson
The chameleon mechanism enables a long range fifth force to be screened in dense environments when non-trivial self interactions of the field cause its mass to increase with the lo…
Charge-Swapping Q-balls
Edmund J. Copeland, Paul M. Saffin, Shuang-Yong Zhou
Q-balls are non-topological solitonic solutions to a wide class of field theories that possess global symmetries. Here we show that in these same theories there also exists a tower…
Probing Dark Energy with Atom Interferometry
Clare Burrage, Edmund J. Copeland, E. A. Hinds
Theories of dark energy require a screening mechanism to explain why the associated scalar fields do not mediate observable long range fifth forces. The archetype of this is the ch…