dorsal/arxiv
View SchemaThe physics of no-bit-commitment : Generalized quantum non-locality versus oblivious transfer
| Authors | Tony Short, Nicolas Gisin, Sandu Popescu |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0504134 |
| URL | https://arxiv.org/abs/quant-ph/0504134 |
Abstract
We show here that the recent work of Wolf and Wullschleger (quant-ph/0502030) on oblivious transfer apparently opens the possibility that non-local correlations which are stronger than those in quantum mechanics could be used for bit-commitment. This is surprising, because it is the very existence of non-local correlations which in quantum mechanics prevents bit-commitment. We resolve this apparent paradox by stressing the difference between non-local correlations and oblivious transfer, based on the time-ordering of their inputs and outputs, which prevents bit-commitment.
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"abstract": "We show here that the recent work of Wolf and Wullschleger (quant-ph/0502030)\non oblivious transfer apparently opens the possibility that non-local\ncorrelations which are stronger than those in quantum mechanics could be used\nfor bit-commitment. This is surprising, because it is the very existence of\nnon-local correlations which in quantum mechanics prevents bit-commitment. We\nresolve this apparent paradox by stressing the difference between non-local\ncorrelations and oblivious transfer, based on the time-ordering of their inputs\nand outputs, which prevents bit-commitment.",
"arxiv_id": "quant-ph/0504134",
"authors": [
"Tony Short",
"Nicolas Gisin",
"Sandu Popescu"
],
"categories": [
"quant-ph"
],
"title": "The physics of no-bit-commitment : Generalized quantum non-locality versus oblivious transfer",
"url": "https://arxiv.org/abs/quant-ph/0504134"
},
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