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Remarks on entanglement measures and non-local state distinguishability
J. Eisert, K. Audenaert, M. B. Plenio
We investigate the properties of three entanglement measures that quantify the statistical distinguishability of a given state with the closest disentangled state that has the same…
Driving non-Gaussian to Gaussian states with linear optics
D. E. Browne, J. Eisert, S. Scheel +1
We introduce a protocol that maps finite-dimensional pure input states onto approximately Gaussian states in an iterative procedure. This protocol can be used to distill highly ent…
The entanglement cost under operations preserving the positivity of partial transpose
K. Audenaert, M. B. Plenio, J. Eisert
We study the entanglement cost under quantum operations preserving the positivity of the partial transpose (PPT-operations). We demonstrate that this cost is directly related to th…
The entangling power of passive optical elements
M. M. Wolf, J. Eisert, M. B. Plenio
We investigate the entangling capability of passive optical elements, both qualitatively and quantitatively. We present a general necessary and sufficient condition for the possibi…
Entanglement Properties of the Harmonic Chain
K. Audenaert, J. Eisert, M. B. Plenio +1
We study the entanglement properties of a closed chain of harmonic oscillators that are coupled via a translationally invariant Hamiltonian, where the coupling acts only on the pos…
On the impossibility of distilling Gaussian states with Gaussian operations
J. Eisert, S. Scheel, M. B. Plenio
We show that no distillation protocol for Gaussian quantum states exists that relies on (i) arbitrary local unitary operations that preserve the Gaussian character of the state and…