Abstract
We present a controlled secure quantum dialogue protocol using a non-maximally (pure) entangled Greenberger-Horne-Zeibinger (GHZ) states at first, and then discuss the requirements for a real quantum dialogue. We show that the authorized two users can exchange their secret messages after purifying the non-maximally entangled GHZ states quantum channel unconditionally securely and simultaneously under the control of a third party.
| Original language | English |
|---|---|
| Pages (from-to) | 841-846 |
| Number of pages | 6 |
| Journal | Communications in Theoretical Physics |
| Volume | 48 |
| Issue number | 5 |
| DOIs | |
| State | Published - 15 Nov 2007 |
| Externally published | Yes |
Keywords
- Controlled secure quantum dialogue
- Eavesdropper
- Non-maximally entangled GHZ state
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