181 citations · 487 across the 6 of their papers we have counts for
6 papers
Hiding classical data in multi-partite quantum states
T. Eggeling, R. F. Werner
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…
Distillability via protocols respecting the positivity of partial transpose
Tilo Eggeling, Karl Gerd H. Vollbrecht, Reinhard F. Werner +1
We show that all quantum states that do not have a positive partial transpose are distillable via channels, which preserve the positivity of the partial transpose. The question whe…
Semicausal operations are semilocalizable
T. Eggeling, D. Schlingemann, R. F. Werner
We prove a conjecture by DiVincenzo, which in the terminology of Preskill et al. [quant-ph/0102043] states that ``semicausal operations are semilocalizable''. That is, we show that…
Comment on: Necessary and sufficient condition of separability of any system
T. Eggeling, K. G. H. Vollbrecht, M. M. Wolf
In a recent paper (quant-ph/0102133) Chen, Liang, Li and Huang suggest a necessary and sufficient separability criterion, which is supposedly practical in judging the separability…
Separability properties of tripartite states with UxUxU-symmetry
T. Eggeling, R. F. Werner
We study separability properties in a 5-dimensional set of states of quantum systems composed of three subsystems of equal but arbitrary finite Hilbert space dimension d. These are…
Separability properties of tripartite states with UxUxU-symmetry
T. Eggeling, R. F. Werner
We study separability properties in a 5-dimensional set of states of quantum systems composed of three subsystems of equal but arbitrary finite Hilbert space dimension. These are t…