Simulation of Bell states with incoherent thermal light
Hui Chen, Tao Peng, Sanjit Karmakar, Yanhua H. Shih · New Journal of Physics · 2011
This paper reports our experimental study of thermal light multi-photon qubits. Taking advantage of two-photon interference, we have successfully observed Bell-type correlation from mutually incoherent and orthogonally polarized thermal fields. The visibilities of the polarization correlation and the temporal anti-correlation both exceed 71%, indicating the behavior of a two-photon Bell state or a two-digit qubit.