Quantum key distribution without the wavefunction
arXiv:1611.02515 · doi:10.1142/S0219749917500484
Abstract
A well-known feature of quantum mechanics is the secure exchange of secret bit strings which can then be used as keys to encrypt messages transmitted over any classical communication channel. It is demonstrated that this quantum key distribution allows a much more general and abstract access than commonly thought. The results include some generalizations for the Hilbert space version of quantum key distribution,but base upon a general non-classical extension of conditional probability. A special state-independent conditional probability is identified as origin of the superior security of quantum key distribution and may have more profound implications for the foundations and interpretation of quantum mechanics,quantum information theory, and the philosophical question what actually constitutes physical reality.
16 pages. arXiv admin note: text overlap with arXiv:1502.02151
References in corpus (9)
- Quantum cryptography: Public key distribution and coin tossing
- Characterizing quantum theory in terms of information-theoretic constraints
- A generalized no-broadcasting theorem
- Cloning and Broadcasting in Generic Probabilistic Theories
- Non-Boolean probabilities and quantum measurement
- No-Cloning Theorem on Quantum Logics
- Non-classical conditional probability and the quantum no-cloning theorem
- Imperfect cloning operations in algebraic quantum theory
- Quantum teleportation and Grover's algorithm without the wavefunction