No-go for device independent protocols with Tan-Walls-Collett `nonlocality of a single photon'
arXiv:2102.03254
Abstract
We investigate the interferometric scheme put forward by Tan, Walls and Collett [Phys. Rev. Lett. {\bf 66}, 256 (1991)] that aims to reveal Bell non-classicality of a single photon. By providing a local hidden variable model that reproduces their results, we decisively refute this claim. In particular, this means that the scheme cannot be used in device-independent protocols.
3 + 2 pages, 1 figure. Comments are welcome