Demonstration of EPR steering using single-photon path entanglement and   displacement-based detection
  We demonstrate the violation of an EPR steering inequality developed for single photon path entanglement with displacement-based detection. We use a high-rate source of heralded single-photon path-entangled states, combined with high-efficiency superconducting-based detectors, in a scheme that is free of any post-selection and thus immune to the detection loophole. This result conclusively demonstrates single-photon entanglement in a one-sided device-independent scenario, and opens the way towards implementations of device-independent quantum technologies within the paradigm of path entanglement. 
T. Guerreiro, F. Monteiro, A. Martin, J. B. Brask, T. V\'ertesi, B.   Korzh, M. Caloz, F. Bussi\`eres, V. B. Verma, A. E. Li...
quant-ph