Heralded amplification of nonlocality via entanglement swapping
Heralded amplification of nonlocality via entanglement swapping
Abstract To observe the loophole-free violation of the Clauser–Horne–Shimony–Holt (CHSH) inequality between distant two parties, i.e. the CHSH value <?CDATA $S\gt 2$?> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mi>S</mml:mi> <mml:mo>></mml:mo> <mml:mn>2</mml:mn> </mml:math> , the main limitation of distance stems from the loss in the transmission channel. The entanglement swapping relay (ESR) is a …