2014/09/12 by Ulrik L. Andersen, Jonas S. Neergaard-Nielsen, Peter van Loock +1 · 1 citation
Physics and Astronomy · #quant-ph
paper · pdf · doi:10.1038/nphys3410
published as Nature Physics 11, 713-719 (2015) · 13 pages, 6 figures
arxiv created 2014/09/12 · arxiv updated 2016/05/04
The development of quantum information processing has traditionally followed two separate and not immediately connected lines of study. The main line has focused on the implementation of quantum bit (qubit) based protocols whereas the other line has been devoted to implementations based on high-dimensional Gaussian states (such as coherent and squeezed states). The separation has been driven by the experimental difficulty in interconnecting the standard technologies of the two lines. However, in recent years, there has been a significant experimental progress in refining and connecting the technologies of the two fields which has resulted in the development and experimental realization of numerous new hybrid protocols. In this Review, we summarize these recent efforts on hybridizing the two types of schemes based on discrete and continuous variables.