title: Optimal spin-entangled electron-hole pair pump.
abstract: A nonperturbative theory is presented for the creation by an oscillating potential of spin-entangled electron-hole pairs in the Fermi sea. In the weak potential limit, considered earlier by Samuelsson and Büttiker, the entanglement production is much less than 1 bit per cycle. We demonstrate that a strong potential oscillation can produce an average of one Bell pair per two cycles, making it an efficient source of entangled flying qubits.
authors.affiliation: Instituut-Lorentz, Universiteit Leiden, P.O. Box 9506, 2300 RA Leiden, The Netherlands.
authors.forename: C W J
authors.initials: CW
authors.lastname: Beenakker
authors.forename: M
authors.initials: M
authors.lastname: Titov
authors.forename: B
authors.initials: B
authors.lastname: Trauzettel