Retardation turns the van der Waals attraction into a Casimir repulsion as close as 3 nm
Author(s): Mathias Boström, Bo E. Sernelius, Iver Brevik, and Barry W. Ninham
Casimir forces between surfaces immersed in bromobenzene have recently been measured by Munday et al. [ Nature (London) 454 07610 (2009)]. Attractive Casimir forces were found between gold surfaces. The forces were repulsive between gold and silica surfaces. We show the repulsion is due to retardat…
[Phys. Rev. A 85, 010701] Published Tue Jan 10, 2012