Provably Secure Experimental Quantum Bit-String Generation
arXiv:quant-ph/0408121 · doi:10.1103/PhysRevLett.94.050503
Abstract
Coin tossing is a cryptographic task in which two parties who do not trust each other aim to generate a common random bit. Using classical communication this is impossible, but non trivial coin tossing is possible using quantum communication. Here we consider the case when the parties do not want to toss a single coin, but many. This is called bit string generation. We report the experimental generation of strings of coins which are provably more random than achievable using classical communication. The experiment is based on the ``plug and play'' scheme developed for quantum cryptography, and therefore well suited for long distance quantum communication.
4 pages, 3 figures. Submitted to Phys. Rev. Lett. A complete security analysis for the experiment is given in quant-ph/0408120
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- Measurement-Device-Independent Quantum Coin Tossing
- A family of loss-tolerant quantum coin flipping protocols
- Entanglement Verification of Hyperentangled Photon Pairs
- Would one rather store squeezing or entanglement in continuous variable quantum memories?
- Unconditionally secure relativistic multi-party biased coin flipping and die rolling