Details
| Original language | English |
|---|---|
| Pages (from-to) | 097905 |
| Number of pages | 1 |
| Journal | Phys. Rev. Lett. |
| Volume | 89 |
| Issue number | 9 |
| Publication status | Published - 2002 |
Abstract
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In: Phys. Rev. Lett., Vol. 89, No. 9, 2002, p. 097905.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Hiding classical data in multipartite quantum states
AU - Eggeling, T
AU - Werner, R. F.
PY - 2002
Y1 - 2002
N2 - We present a general technique for hiding a classical bit in multipartite quantum states. The hidden bit, encoded in the choice of one of two possible density operators, cannot be recovered by local operations and classical communication without quantum communication. The scheme remains secure if quantum communication is allowed between certain partners, and can be designed for any choice of quantum communication patterns to be secure, but to allow near perfect recovery for all other patterns. No entanglement is needed since the hiding states can be chosen to be separable. A single ebit of prior entanglement is not sufficient to break the scheme.
AB - We present a general technique for hiding a classical bit in multipartite quantum states. The hidden bit, encoded in the choice of one of two possible density operators, cannot be recovered by local operations and classical communication without quantum communication. The scheme remains secure if quantum communication is allowed between certain partners, and can be designed for any choice of quantum communication patterns to be secure, but to allow near perfect recovery for all other patterns. No entanglement is needed since the hiding states can be chosen to be separable. A single ebit of prior entanglement is not sufficient to break the scheme.
U2 - 10.1103/PhysRevLett.89.097905
DO - 10.1103/PhysRevLett.89.097905
M3 - Article
VL - 89
SP - 097905
JO - Phys. Rev. Lett.
JF - Phys. Rev. Lett.
IS - 9
ER -