title: Finite-time disentanglement via spontaneous emission.
abstract: We show that under the influence of pure vacuum noise two entangled qubits become completely disentangled in a finite-time, and in a specific example we find the time to be given by ln((2+sqrt[2] / 2) times the usual spontaneous lifetime.
authors.affiliation: Rochester Theory Center for Optical Science and Engineering and the Department of Physics & Astronomy University of Rochester, Rochester, New York 14627, USA. ting@pas.rochester.edu
authors.forename: Ting
authors.initials: T
authors.lastname: Yu
authors.forename: J H
authors.initials: JH
authors.lastname: Eberly