Weyl fermions discovered in another class of materials

A particular kind of elementary particle, the Weyl fermions, were first discovered a few years ago. Their specialty: they move through a material in a well ordered manner that practically never lets them collide with each ...

A quantum simulation of Unruh radiation

Researchers at the University of Chicago (UChicago) have recently reported an experimental observation of a matter field with thermal fluctuations that is in accordance with Unruh's radiation predictions. Their paper, published ...

Fluc­tu­a­tions in the void

In quantum physics, a vacuum is not empty, but rather steeped in tiny fluctuations of the electromagnetic field. Until recently it was impossible to study those vacuum fluctuations directly. Researchers at ETH Zurich have ...

Sun, moon and sea as part of a 'seismic probe'

Looking inside the Earth requires a signal that can penetrate rocks, minerals and other opaque material. Seismic waves represent such a signal. By recording them with a seismometer, researchers can draw conclusions from the ...

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Conjuncture

In general, a conjuncture is a period marked by some watershed event which separates different epochs.

In economics, conjuncture (fluctuation) is a critical combination of events.

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