169 citations · 1.3k across the 32 of their papers we have counts for
9 papers · 1 filter
Entanglement and phase properties of noisy N00N states
M. Bohmann, J. Sperling, W. Vogel
Quantum metrology and quantum information necessitate a profound study of suitable states. Attenuations induced by free-space communication links or fluctuations in the generation…
Continuous sampling of the squeezed state nonclassicality
E. Agudelo, J. Sperling, W. Vogel +3
We report the direct -- continuous in phase -- sampling of a regularized function, the so-called nonclassicality quasiprobability, for squeezed light. Through their negativitie…
Balanced homodyne detection with on-off detector systems: Observable nonclassicality criteria
J. Sperling, W. Vogel, G. S. Agarwal
Driven by single photon detection requirements especially for quantum information sciences, the theory of arrays of off-on detectors has been well developed and applied. However fo…
Full multipartite entanglement of frequency comb Gaussian states
S. Gerke, J. Sperling, W. Vogel +4
An analysis is conducted of the multipartite entanglement for Gaussian states generated by the parametric down-conversion of a femtosecond frequency comb. Using a recently introduc…
Structural Quantification of Entanglement
F. Shahandeh, J. Sperling, W. Vogel
We introduce an approach which allows a detailed structural and quantitative analysis of multipartite entanglement. The sets of states with different structures are convex and nest…
Visualizing nonclassical effects in phase space
B. Kühn, W. Vogel
Nonclassicality filters provide a universal method to visualize the nonclassicality of arbitrary quantum states of light through negativities of a regularized Glauber-Sudarshan …