Berlin 2015 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 16: Transport: Quantum Coherence and Quantum Information Systems – Experiments (jointly with HL, MA)
TT 16.6: Vortrag
Montag, 16. März 2015, 16:15–16:30, H 0110
Superconducting on-chip microwave interferometers — •Edwin P. Menzel1,2,3, Michael Fischer1,2,3, Christian Schneider1,2,3, Alexander Baust1,2,3, Peter Eder1,2,3, Jan Goetz1,2,3, Max Haeberlein1,2,3, Manuel Schwarz1,2,3, Karl Friedrich Wulschner1,2,3, Edwar Xie1,2,3, Ling Zhong1,2,3, Frank Deppe1,2,3, Kirill Fedorov1,2,3, Hans Huebl1,2,3, Achim Marx1,2,3, and Rudolf Gross1,2,3 — 1Walther-Meißner-Institut, Bayerische Akademie der Wissenschaften, 85748 Garching, Germany — 2Physik-Department, TU München, 85748 Garching, Germany — 3Nanosystems Initiative Munich (NIM), 80799 München, Germany
In the realm of all-microwave quantum computation, information is encoded in itinerant microwave photons propagating along transmission lines. In such a system unitary operations are implemented by linear elements such as beam splitters or interferometers. However, for two-qubit operations non-linear gates, e.g., c-phase gates are required. In this work, we investigate superconducting interferometers as a building block of a c-phase gate. We experimentally characterize their scattering properties and compare them to simulation results. Finally, we discuss our progress towards the realization of a c-phase gate.
This work is supported by the DFG via SFB 631 and the EU projects CCQED and PROMISCE.