Figure 2: Emulation of iterative Gaussification protocol.
From: Efficient entanglement distillation without quantum memory
A single, continuously operated source distributes copies of the entangled and decohered states ρ to Alice and Bob. The states’ coherent amplitudes are locally measured with two out-of-phase BHDs each, the so-called eight-port homodyne detectors. By prolonging the measurement time any quantity of copies may be generated. An emulated iterative distillation protocol based on the local operations and classical communication is realized as described in the main text. In the end, Alice and Bob share data that are equivalent to that from measurements on distilled entangled states.
