Dresden 2006 – wissenschaftliches Programm
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TT: Tiefe Temperaturen
TT 10: Symposium Solid State Meets Quantum Optics
TT 10.4: Fachvortrag
Montag, 27. März 2006, 16:30–17:00, HSZ 02
Nonclassical States, Tomography, and Quantum Information in Circuit QED — •E. Solano1,2, M. Mariantoni3, M.J. Storcz4, F.K. Wilhelm4, W.D. Oliver5, A. Emmert3, A. Marx3, R. Gross3, and H. Christ1 — 1Max-Planck Institute for Quantum Optics, Hans-Kopfermann-Strasse 1, D-85748 Garching, Germany — 2Sección Física, Departamento de Ciencias, Pontificia Universidad Católica del Perú, Apartado 1761, Lima, Peru — 3Walther-Meissner-Institut, Bayerische Akademie der Wissenschaften, Walther-Meissner-Strasse 8, D-85748 Garching, Germany — 4Department Physik, CeNS and ASC, LMU, Theresienstrasse 37, D-80333 München, Germany — 5MIT Lincoln Laboratory, 244 Wood Street, Lexington, Massachussets 02420, USA
We show that flux-based qubits can be coupled to superconductive resonators by means of a quantum-optical Raman excitation scheme and utilized for the deterministic generation of propagating microwave single photons. We introduce also a microwave quantum homodyne technique that enables the measurement of single photons and other weak signals, and full state reconstruction via quantum tomography, realizing linear optics on a chip [1]. These generation and measurement protocols are building blocks for the generation of nonclassical states [2] and the advent of quantum information [3] in the field of circuit QED.
[1] M. Mariantoni et al., cond-mat/0509737.
[2] M.J. Storcz, M. Mariantoni, A. Emmert, R. Gross, F.K. Wilhelm, H. Christ, and E. Solano, in preparation.
[3] H. Christ, M. Mariantoni, and E. Solano, in preparation.
This work was supported by the SFB 631 of the DFG.