518 citations · 2.8k across the 54 of their papers we have counts for
4 papers · 1 filter
The power of random measurements: measuring Tr(ρ^n) on single copies of ρ
S. J. van Enk, C. W. J. Beenakker
While it is known that Tr(ρ^n) can be measured directly (i.e., without first reconstructing the density matrix) by performing joint measurements on n copies of the same state rho,…
Information criteria for efficient quantum state estimation
J. O. S. Yin, S. J. van Enk
Recently several more efficient versions of quantum state tomography have been proposed, with the purpose of making tomography feasible even for many-qubit states. The number of st…
Detecting drift of quantum sources: not the de Finetti theorem
Lucia Schwarz, S. J. van Enk
We propose and analyze a method to detect and characterize the drift of a nonstationary quantum source. It generalizes a standard measurement for detecting phase diffusion of laser…
Verifying entanglement in the Hong-Ou-Mandel dip
Megan R. Ray, Steven J. van Enk
The Hong-Ou-Mandel interference dip is caused by an entangled state, a delocalized bi-photon state. We propose a method of detecting this entanglement by utilizing inverse Hong-Ou-…