Regensburg 2016 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 58: Transport: Poster Session
TT 58.19: Poster
Mittwoch, 9. März 2016, 15:00–18:30, Poster D
Displacement of two-mode squeezed propagating microwave states — •Patrick Yard1,2, Kirill Federov1,2, Ling Zhong1,2,3, Stefan Pogorzalek1,2, Peter Eder1,2,3, Michael Fischer1,2,3, Jan Goetz1,2, Friedrich Wulschner1,2, Edwar Xie1,2,3, Edwin Menzel1,2, Frank Deppe1,2,3, Achim Marx1, and Rudolf Gross1,2,3 — 1Walther-Meissner-Institut, Bayerische Akademie der Wissenschaften, 85748 Garching, Germany — 2Physik-Department, Technische Universität München, 85748 Garching, Germany — 3Nanosystems Initiative Munich (NIM), 80799 München, Germany
We study an experimental implementation of the displacement operation on squeezed microwave states. We generate these states using a conventional Josephson parametric amplifier and implement displacement using a specific cryogenic directional coupler. We demonstrate that even for strong displacement amplitudes we do not observe any degradation of the reconstructed quantum states. Furthermore, we investigate the single-mode and two-mode displacement regimes. This allows us to experimentally verify commutation relations between displacement and squeezing operators in a multi-mode case.
We acknowledge support by the German Research Foundation through SFB 631 and FE 1564/1-1, the EU project PROMISCE, and Elite Network of Bavaria through the program ExQM.