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Deployed trusted-node quantum key distribution over 300 km with a multi-core fiber access link
Announce Type: cross Abstract: Quantum key distribution (QKD) is increasingly considered for deployment in realistic communication networks, where long distances, heterogeneous fiber infrastructure, and coexistence with classical traffic present substantial challenges. Here, we demonstrate trusted-node QKD between Link\"oping University and the Stockholm hub of the Swedish national quantum communication infrastructure over 270 km of deployed single-mode fiber, extended by a 33 km multi-core...
Deployed trusted-node quantum key distribution over 300 km with a multi-core fiber access link
Announce Type: cross Abstract: Quantum key distribution (QKD) is increasingly considered for deployment in realistic communication networks, where long distances, heterogeneous fiber infrastructure, and coexistence with classical traffic present substantial challenges. Here, we demonstrate trusted-node QKD between Link\"oping University and the Stockholm hub of the Swedish national quantum communication infrastructure over 270 km of deployed single-mode fiber, extended by a 33 km multi-core...
Buoys track ocean waves across 14,000 km, from storms in Antarctica to ripples in Alaska
Buoys track ocean waves across 14,000 km, from storms in Antarctica to ripples in Alaska Lisa Lock Scientific Editor Robert Egan Associate Editor For the first time, mighty ocean waves generated in the Southern Ocean have been accurately measured all the way to the tiny ripples they form on the shores of Alaska. Professor Ian Young, from the University of Melbourne's Department of Infrastructure Engineering, is lead author on a landmark study that analyzed data from 300 drifting ocean buoys...
A 170 km journey by a freshwater stingray challenges long-held conservation assumptions
June 8, 2026 dialog A 170 km journey by a freshwater stingray challenges long-held conservation assumptions Lisa Lock Scientific Editor Robert Egan Associate Editor Most sharks and rays inhabit the oceans, but a small proportion thrive in freshwater. Approximately 4% to 5% of all shark and ray species live in tropical and subtropical rivers around the world. Two main ecological strategies can be distinguished among freshwater sharks and rays.
Portable UV spectrometer can detect air pollutants across 2.5 km with high precision
Portable UV spectrometer can detect air pollutants across 2.5 km with high precision Sadie Harley Scientific Editor Robert Egan Associate Editor Birgitta Schultze-Bernhardt and her team at the Institute of Experimental Physics at Graz University of Technology (TU Graz) have developed a new type of UV dual-comb spectrometer that detects gaseous air pollutants with unrivaled accuracy and sensitivity. Using ultraviolet double laser light, the device measures the concentration of harmful gases...
Bihar's 220-km Riverfront Expressway plan may open next real estate hotspots in the state
This news is a game changer in Bihar’s infrastructure history. In a recent development, the government of Bihar has shared plans for three new riverfront expressways across 220 kilometres along the Ganga and Gandak rivers. The project is aimed at improving transportation and regional connectivity, but in the long-run, it may have a significant impact on the real estate sector in the state.
'Every red light was making my heart race': 61 km, two exams, and a father’s X post
On Sunday, Shailendra Sharma turned to X to describe what he and his daughter went through in a single afternoon, two national-level entrance exams, two different centres, and a 61-kilometre stretch of Delhi-NCR traffic in between. His post wasn’t written like a complaint at first. It read more like disbelief mixed with exhaustion, the kind that comes only after you’ve lived through something and are still trying to make sense of it.
Hitler's 70 km ghost motorway: Germany's longest abandoned autobahn
Route 46 is Germany’s longest abandoned motorway project. It owes less to transport efficiency than to Nazi-era construction ideology and propaganda. Route 46 is 70 kilometres long and is considered Germany’s longest officially registered motorway ruin.
Jewar airport corridor: Infrastructure project that could boost nearby property markets
As the Jewar international airport is set to host commercial flights by June 15, the Yamuna Industrial Development Authority is building a 15.1 kilometer long and 120 meter wide corridor that will improve connectivity of the upcoming airport with the Yamuna expressway. The project is a part of the overall ‘YEIDA master plan 2041’. Around 8 km of the project has already been constructed, the other 2 km is currently under construction near sector 22E, and the process of land acquisition for...