A connection between quantum theory and information theory proved

EurekAlert  December 6, 2024 Wave-particle duality is one of the most notable and counterintuitive features of quantum mechanics, illustrating that two incompatible observables cannot be measured simultaneously with arbitrary precision. An international team of researchers (Sweden, Chile, Poland) experimentally demonstrated the equivalence of wave particle duality and entropic uncertainty relations using orbital angular momentum states of light. Their experiment used a reconfigurable platform composed of a few-mode optical results providing fundamental insights into the complementary principle from an informational perspective, with implications for the broader field of quantum technologies… read more. Open Access TECHNICAL ARTICLE

New 3D-printed microscale photonic lantern opens opportunities for spatial mode multiplexing

Phys.org  June 3, 2024 Photonic lantern (PL) spatial multiplexers enable efficient conversion between multiple single-mode (SM) sources and a multimode (MM) waveguide of the same dimension. PL multiplexers operate by facilitating adiabatic transitions between the SM arrayed space and the single MM space. However, current fabrication methods are forcing the size of these devices to multi-millimeters, making integration with micro-scale photonic systems quite challenging. A team of researchers (Israel, USA – industry) presented the design, fabrication, and characterization of a 6-mode mixing, 375 µm long PL that enabled the conversion between six single-mode inputs and a single six-mode waveguide. The PL […]