169 citations · 2.5k across the 89 of their papers we have counts for
5 papers · 1 filter
Correlation measurements with on-off detectors
J. Sperling, W. Vogel, G. S. Agarwal
We present a general method to detect nonclassical radiation fields with systems of on-off detectors. We especially study higher order correlations for the identification of noncla…
Operational Gaussian Schmidt-Number Witnesses
Farid Shahandeh, Jan Sperling, Werner Vogel
The general class of Gaussian Schmidt-number witness operators for bipartite systems is studied. It is shown that any member of this class is reducible to a convex combination of t…
Multipartite entangled light from driven microcavities
D. Pagel, H. Fehske, J. Sperling +1
The generation and the characterization of multipartite entangled light is an important and challenging task in quantum optics. In this paper the entanglement properties of the lig…
Bipartite bound entanglement in continuous variables through deGaussification
F. E. S. Steinhoff, M. C. de Oliveira, J. Sperling +1
We introduce a class of bipartite entangled continuous variable states that are positive under partial transposition operation, i.e., PPT bound entangled. These states are based on…
Multipartite Entanglement Witnesses
J. Sperling, W. Vogel
We derive a set of algebraic equations, the so-called multipartite separability eigenvalue equations. Based on their solutions, we introduce a universal method for the construction…