title: Entanglement evolution in finite dimensions.
abstract: We provide a relation which describes how the entanglement of two d-level systems evolves as either system undergoes an arbitrary physical process. The dynamics of the entanglement turns out to be of a simple form and is fully captured by a single quantity.
authors.affiliation: Physikalisches Institut, Albert-Ludwigs-Universität Freiburg, Hermann-Herder-Strasse 3, Freiburg, Germany. markus.tiersch@physik.uni-freiburg.de
authors.forename: Markus
authors.initials: M
authors.lastname: Tiersch
authors.forename: Fernando
authors.initials: F
authors.lastname: de Melo
authors.forename: Andreas
authors.initials: A
authors.lastname: Buchleitner