Quantum teleportation [1] faithfully transfers a quantum state between distant nodes in a network, enabling revolutionary information processing applications [2][3][4]. Here we report teleporting quantum states over a 30 km optical fibre network with the input single photon state and the EPR state prepared independently. By buffering photons in 10 km coiled optical fibre, 1
Entanglement swapping entangles two particles that have never interacted [1], which implicitly assumes that each particle carries an independent local hidden variable, i.e., the presence of bilocality [2]. Previous experimental studies of bilocal hidden variable models did not fulfil the central requirement that the assumed two local hidden variable models must be mutually independent [3][4][5]. By harnessing the laser phase randomization [6] rising from the spontaneous emission to the stimulated emission to ensure the independence between entangled photon-pairs created at separate sources and separating relevant events spacelike to satisfy the nosignaling condition, for the first time, we simultaneously close the loopholes of independent source, locality and measurement independence in an entanglement swapping experiment in a network. We measure a bilocal parameter of 1.181 ± 0.004 and the CHSH 1 arXiv:1807.05375v3 [quant-ph]
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