title: On cosmology in the laboratory.
abstract: In transformation optics, ideas from general relativity have been put to practical use for engineering problems. This article asks the question how this debt can be repaid. In discussing a series of recent laboratory experiments, it shows how insights from wave phenomena shed light on the quantum physics of the event horizon.
authors.affiliation: Weizmann Institute of Science, Rehovot 76100, Israel ulf.leonhardt@weizmann.ac.il.
authors.forename: Ulf
authors.initials: U
authors.lastname: Leonhardt
keywords: analogues of gravity; black holes; transformation optics