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Hybrid ququart-enco...
Hybrid ququart-encoded quantum cryptography protected by Kochen-Specker contextuality
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- Cabello, Adan (författare)
- Stockholms universitet,Fysikum
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D'Ambrosio, Vincenzo (författare)
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Nagali, Eleonora (författare)
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Sciarrino, Fabio (författare)
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(creator_code:org_t)
- 2011
- 2011
- Engelska.
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Ingår i: Physical Review A. Atomic, Molecular, and Optical Physics. - 1050-2947 .- 1094-1622. ; 84:3, s. 030302-
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Quantum cryptographic protocols based on complementarity are not secure against attacks in which complementarity is imitated with classical resources. The Kochen-Specker (KS) theorem provides protection against these attacks, without requiring entanglement or spatially separated composite systems. We analyze the maximum tolerated noise to guarantee the security of a KS-protected cryptographic scheme against these attacks and describe a photonic realization of this scheme using hybrid ququarts defined by the polarization and orbital angular momentum of single photons.
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