Work

The physics of no-bit-commitment : Generalized quantum non-locality versus oblivious transfer

Year: 2005

Type: preprint

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.

Source: arXiv (Cornell University)

DOI: 10.48550/arxiv.quant-ph/0504134

Authors: Short, Tony, Gisin, Nicolas, Popescu, Sandu

Institutions: University of Bristol, University of Geneva, Hewlett-Packard (United Kingdom)

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: green

Funders: European Commission, Engineering and Physical Sciences Research Council

OpenAlex ID: W2951489888

Cites:

Cited by: 5

Related to: 10