Fig. 4: Noise performance of the single-photon isolator. | Communications Physics

Fig. 4: Noise performance of the single-photon isolator.

From: Noiseless single-photon isolator at room temperature

Fig. 4

a The measured second-order cross-correlated function \({g}_{s,as}^{(2)}(\tau )\) of heralded single photons after propagating through the atomic vapour in the forward (red) and backward (blue) directions. b The measured second order cross-correlated function \({g}_{s,as}^{(2)}(\tau )\) of the input single photons (red) before the atomic vapour and the noise by blocking the signal while keeping the pump field on.

Back to article page