dorsal/arxiv
View SchemaA local variable model for entanglement swapping exploiting the detection loophole
| Authors | N. Gisin, B. Gisin |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0201077 |
| URL | https://arxiv.org/abs/quant-ph/0201077 |
| DOI | 10.1016/S0375-9601(02)00428-0 |
| Journal | Physics Letters A, 297, 279-284, 2002 |
Abstract
In an entanglement swapping process two initially uncorrelated qubits become entangled, without any direct interaction. We present a model using local variables aiming at reproducing this remarkable process, under the realistic assumption of finite detection efficiencies. The model assumes that the local variables describing the two qubits are initially completely uncorrelated. Nevertheless, we show that once conditioned on the Bell measurement result, the local variables bear enough correlation to simulate quantum measurement results with correlation very close to the quantum prediction. When only a partial Bell measurement is simulated, as carried out is all experiments so far, then the model recovers analytically the quantum prediction.
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"abstract": "In an entanglement swapping process two initially uncorrelated qubits become\nentangled, without any direct interaction. We present a model using local\nvariables aiming at reproducing this remarkable process, under the realistic\nassumption of finite detection efficiencies. The model assumes that the local\nvariables describing the two qubits are initially completely uncorrelated.\nNevertheless, we show that once conditioned on the Bell measurement result, the\nlocal variables bear enough correlation to simulate quantum measurement results\nwith correlation very close to the quantum prediction. When only a partial Bell\nmeasurement is simulated, as carried out is all experiments so far, then the\nmodel recovers analytically the quantum prediction.",
"arxiv_id": "quant-ph/0201077",
"authors": [
"N. Gisin",
"B. Gisin"
],
"categories": [
"quant-ph"
],
"doi": "10.1016/S0375-9601(02)00428-0",
"journal_ref": "Physics Letters A, 297, 279-284, 2002",
"title": "A local variable model for entanglement swapping exploiting the detection loophole",
"url": "https://arxiv.org/abs/quant-ph/0201077"
},
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