Experimental test of rotational invariance and entanglement of photonic six-qubit singlet state

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dc.creatorRadmark, Magnus
dc.creatorZukowski, Marek
dc.creatorBourennane, Mohamed
dc.date2009-03-18
dc.date.accessioned2026-07-07T12:53:38Z
dc.date.available2026-07-07T12:53:38Z
dc.descriptionWe experimentally test invariance properties of the six-photonic-qubits generalization of a singlet state. Our results clearly corroborate with theory. The invariance properties are useful to beat some types of decoherence. We also experimentally detect entanglement in the state using an appropriate witness observable, composed of local observables. Our results clearly indicate that the tested setup, which is very stable, is a good candidate for realization of various multi-party quantum communication protocols. The estimated fidelity of the produced state is very high: it reveals very strong EPR six-photon correlations of error rate below 6%.
dc.description3 figures
dc.identifierhttps://arxiv.org/abs/0903.3188
dc.identifierhttp://arxiv.org/abs/0903.3188
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/223687
dc.subjectQuantum Physics
dc.titleExperimental test of rotational invariance and entanglement of photonic six-qubit singlet state
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