Does the universe repel itself? That is roughly the idea that researchers from the Immanuel Kant Baltic Federal University in Kaliningrad, Russia proposed in a recent paper. Their paper refers to the Casimir effect, which involves a quantum-physics phenomenon that was predicted and also later confirmed by the Dutch scientist Hendrik Casimir. The Casimir effect causes two conductive plates arranged in parallel in a vacuum to be attracted to each other by a force.
The idea that it might be responsible for previously unexplainable phenomena like dark energy is not completely novel. In general, it predicts that hard, fixed boundaries might lead to effects that produce certain forces, not only forces that attract, but also repel. The Russian researchers have now transferred the effect to a holographic model of the universe.