Displacement of propagating squeezed microwave states
Quantum Physics
2016-07-11 v1 Mesoscale and Nanoscale Physics
Superconductivity
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 stays constant over a wide range of the displacement power.
Keywords
Cite
@article{arxiv.1601.06697,
title = {Displacement of propagating squeezed microwave states},
author = {Kirill G. Fedorov and L. Zhong and S. Pogorzalek and P. Eder and M. Fischer and J. Goetz and E. Xie and F. Wulschner and K. Inomata and T. Yamamoto and Y. Nakamura and R. Di Candia and U. Las Heras and M. Sanz and E. Solano and E. P. Menzel and F. Deppe and A. Marx and R. Gross},
journal= {arXiv preprint arXiv:1601.06697},
year = {2016}
}