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The two-way symmetry of electromagnetic wave propagation can be broken effectively in optomechanical systems, enabling new devices that route photons in unconventional ways.
The emergent phenomena that characterize quantum materials have received prominent exposure thanks to experimental techniques based on photoemission. In turn, the challenges and opportunities presented by quantum materials have driven improvements in the photoemission technology itself.
Physicists are accustomed to dealing with large datasets, yet they are fortunate in that the quality of their experimental data is very good. The onset of big data has led to an explosion of datasets with a far more complex structure — a development that requires new tools and a different mindset.
INSPIRE, the central information resource of the high-energy physics community, pioneered the open dissemination of scientific literature. It has been evolving to keep up with the new technologies and it is not slowing down.
That we now live in the grip of post-factualism would seem naturally repellent to most physicists. But in championing theory without demanding empirical evidence, we're guilty of ignoring the facts ourselves.
Introduced originally to mimic the unusual, frustrated behaviour of spin ice pyrochlores, artificial spin ice can be realized in odd, dedicated geometries that open the door to new manifestations of a higher level of frustration.
Secure communication is emerging as a significant challenge for our hyper-connected data-dependent society. The answer may lie in a clever combination of quantum and classical cryptographic techniques.