title: Coherent terahertz control of vertical transport in semiconductor heterostructures.
abstract: Coherent-control protocols are introduced to selectively transport electrons, excitons, or pure two-particle correlations through semiconductor interfaces. The scheme is tested in a double-quantum-well structure where a sequence of terahertz pulses is applied to induce the vertical excitation transfer between the wells. Using a microscopic theory, it is shown that efficient and highly selective transfer can be realized even in the presence of the unavoidable scattering and dephasing processes.
authors.affiliation: Department of Micro- and Nanosciences, Aalto University, P.O. Box 13500, FI-00076 Aalto, Finland.|Department of Physics and Material Sciences Center, Philipps-Universität Marburg, Renthof 5, 35032 Marburg, Germany.
authors.forename: O
authors.initials: O
authors.lastname: Vänskä
authors.affiliation: Department of Micro- and Nanosciences, Aalto University, P.O. Box 13500, FI-00076 Aalto, Finland.
authors.forename: I
authors.initials: I
authors.lastname: Tittonen
authors.affiliation: Department of Physics and Material Sciences Center, Philipps-Universität Marburg, Renthof 5, 35032 Marburg, Germany.
authors.forename: S W
authors.initials: SW
authors.lastname: Koch
authors.affiliation: Department of Physics and Material Sciences Center, Philipps-Universität Marburg, Renthof 5, 35032 Marburg, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Kira