Experimental demonstration of superresolution of partially coherent light sources using parity sorting

no code implementations • 2 Feb 2021 • S. A. Wadood, Yiyu Zhou, Jing Yang, Kevin Liang, M. A. Alonso, X. -F. Qian, T. Malhotra, S. M. Hashemi Rafsanjani, Andrew N. Jordan, Robert W. Boyd, A. N. Vamivakas

Analyses based on quantum metrology have shown that the ability to localize the positions of two incoherent point sources can be significantly enhanced through the use of mode sorting.

Optics Quantum Physics

Coherence effects on estimating two-point separation

no code implementations • 9 Dec 2020 • Kevin Liang, S. A. Wadood, A. N. Vamivakas

The quantum Fisher information (FI), when applied to the estimation of the separation of two point sources, has been shown to be non-zero in cases where the coherence between the sources are known.

Optics

Quantification and observation of genuine three-party coherence: A solution based on classical optics

no code implementations • 7 Jul 2020 • X. -F. Qian, S. A. Wadood, A. N. Vamivakas, J. H. Eberly

The constraint relations can be geometrically interpreted and visualized as tetrahedra nested within a coherence cube.

Quantum Physics Optics