dorsal/arxiv
View SchemaBit Commitment from Weak Non-Locality
| Authors | Stefan Wolf, Juerg Wullschleger |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0508233 |
| URL | https://arxiv.org/abs/quant-ph/0508233 |
Abstract
So-called non-local boxes, which have been introduced as an idealization-in different respects-of the behavior of entangled quantum states, have been known to allow for unconditional bit commitment between the two involved parties. We show that, actually, any possible non-local correlation which produces random bits on both sides can be used to implement bit commitment, and that this holds even when the parties are allowed to delay their inputs to the box. Since a particular example is the behavior of an EPR pair, this resource allows for implementing unconditionally secure bit commitment as long as the parties cannot entangle their Qbits with any other system.
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"abstract": "So-called non-local boxes, which have been introduced as an idealization-in\ndifferent respects-of the behavior of entangled quantum states, have been known\nto allow for unconditional bit commitment between the two involved parties. We\nshow that, actually, any possible non-local correlation which produces random\nbits on both sides can be used to implement bit commitment, and that this holds\neven when the parties are allowed to delay their inputs to the box. Since a\nparticular example is the behavior of an EPR pair, this resource allows for\nimplementing unconditionally secure bit commitment as long as the parties\ncannot entangle their Qbits with any other system.",
"arxiv_id": "quant-ph/0508233",
"authors": [
"Stefan Wolf",
"Juerg Wullschleger"
],
"categories": [
"quant-ph"
],
"title": "Bit Commitment from Weak Non-Locality",
"url": "https://arxiv.org/abs/quant-ph/0508233"
},
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