News & Views |
Featured
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Review Article |
Physics of highly multimode nonlinear optical systems
Nonlinearities allow the large number of modes in a multimode fibre to interact and create emergent phenomena. This Review presents the breadth of the high-dimensional nonlinear physics that can be studied in this platform.
- Logan G. Wright
- , Fan O. Wu
- & Frank W. Wise
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News & Views |
Clock comparison using black holes
Observing accreting black holes in the early Universe allows precise comparison of clocks over intercontinental distances on Earth. This is achieved with a novel observation strategy using the next generation of very long baseline interferometry systems.
- Rüdiger Haas
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Article |
Intercontinental comparison of optical atomic clocks through very long baseline interferometry
Very long baseline interferometry is used to compare two optical clocks located in Japan and Italy through the observation of extragalactic radio sources. This approach overcomes limitations of the performance of satellite transfer techniques.
- Marco Pizzocaro
- , Mamoru Sekido
- & Tetsuya Ido
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Letter |
Geodesy and metrology with a transportable optical clock
An atomic clock has been deployed on a field measurement campaign to determine the height of a mountain location 1,000 m above sea level, returning a value that is in good agreement with state-of-the-art geodesy.
- Jacopo Grotti
- , Silvio Koller
- & Davide Calonico
Optical Coriolis force guides light along Trojan beams