Abstract
A sharp estimate is given for the amount of Shannon information and expected collision probability. This estimate is valid for all eavesdropping strategies described by a generalized measurement and restricted to the Hilbert space of the one-photon state. The optimal generalized measurement is explicitly given.
| Original language | English |
|---|---|
| Pages (from-to) | 97-111 |
| Number of pages | 14 |
| Journal | Physical Review A |
| Volume | 54 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Jul 1996 |
Keywords
- physics
- quantum
- measurement
- collision probability
- eavesdropping
- security
- photon
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