Propagating Quantum Microwaves: Dual-path State Reconstruction and Path Entanglement
E. P. Menzel · 2013
Propagating quantum microwaves are promising for quantum communication and information processing protocols. In this thesis, we reconstruct the state of quantum microwaves with the dual-path method based on a beam splitter, off-the-shelf linear amplifiers and cross-correlation signal recovery techniques. Furthermore, making use of non-classical squeezed states produced by a Josephson parametric amplifier, we generate and detect continuous-variable frequency-degenerate path entanglement.