Abstract
Single-photon subtracting operation plays important roles in photonic quantum information processing. For example, it enables distillation of entanglement, noiseless amplification of a quantum state, and enhancement of measurement precision. In particular, the non-Gaussian characteristic of the operation is essential for genuine speed-up and universality of continuous-variable quantum computing. Until now, implementation of single-photon subtraction has been limited on a single-mode or a two-mode quantum state, but recently, extension to multiple modes attracts attention [1, 2] in accordance with the availability of multimode quantum states [3].
© 2017 IEEE
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