Improvement on teleportation of continuous variables by photon subtraction via conditional measurement

By T. Opatrný, Gershon Kurizki, D. Welsch. 2000

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Hybrid discrete- and continuous-variable quantum information (2014, background): “…noisy Gaussian entanglement [72–74], but by introducing local non-Gaussian elements such as photon subtraction (via photon counting) the entanglement of the state can be eﬀectively enhanced [75–78] and the process can be further improved using squeezing, displacements and atomic memories [79–82].”
Entanglement distillation from Gaussian input states (2010, unknown): “An improvement on the EPR correlation gives us an operational measure of success of the two-photon subtracted distillation in terms of the fidelity of CV quantum teleportation [5].”