387 citations · 780 across the 11 of their papers we have counts for
11 papers
Mixed State Entanglement Measures for Intermediate Separability
Tsubasa Ichikawa, Marcus Huber, Philipp Krammer +1
To determine whether a given multipartite quantum state is separable with respect to some partition we construct a family of entanglement measures R_m. This is done utilizing gener…
Multipartite entanglement detection via structure factors
Philipp Krammer, Hermann Kampermann, Dagmar Bruss +3
We establish a relation between entanglement of a many-body system and its diffractive properties, where the link is given by structure factors. Based on these, we provide a genera…
Two computable sets of multipartite entanglement measures
Beatrix C. Hiesmayr, Marcus Huber, Philipp Krammer
We present two sets of computable entanglement measures for multipartite systems where each subsystem can have different degrees of freedom (so-called qudits). One set, called 'sep…
Entanglement witnesses and geometry of entanglement of two--qutrit states
Reinhold A. Bertlmann, Philipp Krammer
We construct entanglement witnesses with regard to the geometric structure of the Hilbert--Schmidt space and investigate the geometry of entanglement. In particular, for a two--par…
A simplex of bound entangled multipartite qubit states
B. C. Hiesmayr, F. Hipp, M. Huber +2
We construct a simplex for multipartite qubit states of even number n of qubits, which has the same geometry concerning separability, mixedness, kind of entanglement, amount of ent…
Characterizing entanglement with geometric entanglement witnesses
Philipp Krammer
We show how to detect entangled, bound entangled, and separable bipartite quantum states of arbitrary dimension and mixedness using geometric entanglement witnesses. These witnesse…