Monday, June 24, 2013

1306.5192 (Sindhu Chitikela)

State Decoding in Multi-Stage Cryptography Protocols    [PDF]

Sindhu Chitikela
This paper presents a practical method of quantum tomography for decoding the state of photons in a multistage cryptography protocol. This method works if the polarization angles are defined on a fixed plane, as is assumed in several quantum cryptography protocols. We show if there are 2m polarization angles in a fixed plane, we need m number of filters and m2 number of photons through each filter.
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