Quantum bit commitment under Gaussian constraints
Name
Mandilara-2012-Quantum bit commitment under Gaussian constraints.pdf
Size
533.12 KB
Format
Adobe PDF
Checksum (MD5)
97391c18e6982db076b2473b036b68b5
Author(s)
Cerf, Nicolas J.
Mandilara, Aikaterini
Date Issued
June 2012
Journal
Physical Review A
Publisher
American Physical Society
Citation
Mandilara, Aikaterini, and Nicolas Cerf. “Quantum Bit Commitment Under Gaussian Constraints.” Physical Review A 85.6 (2012): 062310. © 2012 American Physical Society.
Version
Final published version
Abstract
Quantum bit commitment has long been known to be impossible. Nevertheless, just as in the classical case, imposing certain constraints on the power of the parties may enable the construction of asymptotically secure protocols. Here, we introduce a quantum bit commitment protocol and prove that it is asymptotically secure if cheating is restricted to Gaussian operations. This protocol exploits continuous-variable quantum optical carriers, for which such a Gaussian constraint is experimentally relevant as the high optical nonlinearity needed to effect deterministic non-Gaussian cheating is inaccessible.
MIT Department
W. M. Keck Foundation Center for Extreme Quantum Information Theory
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevA.85.062310
