136 citations · 248 across the 4 of their papers we have counts for
5 papers
Classical Fisher Information in Quantum Metrology -- Interplay of Probe, Dynamics and Measurement
Gabriel A. Durkin
We introduce a positive Hermitian operator, the Fisher operator, and use it to examine a measurement process incorporating unitary dynamics and complete measurements. We develop th…
Local and Global Distinguishability in Quantum Interferometry
Gabriel A. Durkin, Jonathan P. Dowling
A statistical distinguishability based on relative entropy characterises the fitness of quantum states for phase estimation. This criterion is employed in the context of a Mach-Zeh…
Multi-Partite Entanglement Inequalities via Spin Vector Geometry
Gabriel A. Durkin, Christoph Simon
We introduce inequalities for multi-partite entanglement, derived from the geometry of spin vectors. The criteria are constructed iteratively from cross and dot products between th…
Quantum entanglement of a large number of photons
H. S. Eisenberg, G. Khoury, G. A. Durkin +2
A bipartite multiphoton entangled state is created through stimulated parametric down-conversion of strong laser pulses in a nonlinear crystal. It is shown how detectors that do no…
Resilience of multi-photon entanglement under losses
G. A. Durkin, C. Simon, J. Eisert +1
We analyze the resilience under photon loss of the bi-partite entanglement present in multi-photon states produced by parametric down-conversion. The quantification of the entangle…