Displacement of Propagating Squeezed Microwave States

K.G. Fedorov, L. Zhong, S. Pogorzalek, P. Eder, M. Fischer, J. Goetz, E. Xie, F. Wulschner, K. Inomata, T. Yamamoto, Y. Nakamura, R. Di Candia, U. Las Heras, M. Sanz, Enrique Solano, E.P. Menzel, F. Deppe, A. Marx, R. Gross

Research output: Contribution to journalArticleScientificpeer-review

48 Citations (Scopus)

Abstract

Displacement of propagating quantum states of light is a fundamental operation for quantum communication. It enables fundamental studies on macroscopic quantum coherence and plays an important role in quantum teleportation protocols with continuous variables. In our experiments, we have successfully implemented this operation for propagating squeezed microwave states. We demonstrate that, even for strong displacement amplitudes, there is no degradation of the squeezing level in the reconstructed quantum states. Furthermore, we confirm that path entanglement generated by using displaced squeezed states remains constant over a wide range of the displacement power.
Original languageEnglish
Number of pages5
JournalPhysical Review Letters
Volume117
DOIs
Publication statusPublished - 2016
MoE publication typeA1 Journal article-refereed

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