1303.6522 (Nicolas Brunner et al.)

Proposal for a loophole-free Bell test based on spin-photon interactions
in cavities    [PDF]

Nicolas Brunner, Andrew B. Young, Chengyong Hu, John G. Rarity

We present a scheme to demonstrate loophole-free Bell inequality violation where the entanglement between photon pairs is transferred to solid state (spin) qubits mediated by cavity QED interactions. As this transfer can be achieved in a heralded way, our scheme is basically insensitive to losses on the channel. This makes it appealing for the implementation of quantum information protocols based on nonlocality, such as device-independent quantum key distribution. We consider potential experimental realisations of our scheme using single atom, colour centre and quantum dot cavity systems.

View original: http://arxiv.org/abs/1303.6522