title: Quantum optics. Quantum harmonic oscillator state synthesis by reservoir engineering.
abstract: The robust generation of quantum states in the presence of decoherence is a primary challenge for explorations of quantum mechanics at larger scales. Using the mechanical motion of a single trapped ion, we utilize reservoir engineering to generate squeezed, coherent, and displaced-squeezed states as steady states in the presence of noise. We verify the created state by generating two-state correlated spin-motion Rabi oscillations, resulting in high-contrast measurements. For both cooling and measurement, we use spin-oscillator couplings that provide transitions between oscillator states in an engineered Fock state basis. Our approach should facilitate studies of entanglement, quantum computation, and open-system quantum simulations in a wide range of physical systems.
authors.affiliation: Institute for Quantum Electronics, ETH Zürich, Otto-Stern-Weg 1, 8093 Zürich, Switzerland. daniel.kienzler@phys.ethz.ch jhome@phys.ethz.ch.
authors.forename: D
authors.initials: D
authors.lastname: Kienzler
authors.affiliation: Institute for Quantum Electronics, ETH Zürich, Otto-Stern-Weg 1, 8093 Zürich, Switzerland.
authors.forename: H-Y
authors.initials: HY
authors.lastname: Lo
authors.affiliation: Institute for Quantum Electronics, ETH Zürich, Otto-Stern-Weg 1, 8093 Zürich, Switzerland.
authors.forename: B
authors.initials: B
authors.lastname: Keitch
authors.affiliation: Institute for Quantum Electronics, ETH Zürich, Otto-Stern-Weg 1, 8093 Zürich, Switzerland.
authors.forename: L
authors.initials: L
authors.lastname: de Clercq
authors.affiliation: Institute for Quantum Electronics, ETH Zürich, Otto-Stern-Weg 1, 8093 Zürich, Switzerland.
authors.forename: F
authors.initials: F
authors.lastname: Leupold
authors.affiliation: Institute for Quantum Electronics, ETH Zürich, Otto-Stern-Weg 1, 8093 Zürich, Switzerland.
authors.forename: F
authors.initials: F
authors.lastname: Lindenfelser
authors.affiliation: Institute for Quantum Electronics, ETH Zürich, Otto-Stern-Weg 1, 8093 Zürich, Switzerland.
authors.forename: M
authors.initials: M
authors.lastname: Marinelli
authors.affiliation: Institute for Quantum Electronics, ETH Zürich, Otto-Stern-Weg 1, 8093 Zürich, Switzerland.
authors.forename: V
authors.initials: V
authors.lastname: Negnevitsky
authors.affiliation: Institute for Quantum Electronics, ETH Zürich, Otto-Stern-Weg 1, 8093 Zürich, Switzerland. daniel.kienzler@phys.ethz.ch jhome@phys.ethz.ch.
authors.forename: J P
authors.initials: JP
authors.lastname: Home