(physics) A mathematical notation using indices to label the components of vectors and tensors.

(quantum mechanics) A process claimed to explain wavefunction collapse and the emergence of classical descriptions of reality from quantum descriptions. In this approach, classicality is described as an emergent property induced in open quantum systems by their environments.

plural of Bose-Einstein condensate

plural of Einstein ring

Synonym of Einsteinianism

The physics of Albert Einstein, including general relativity and concepts that go beyond classical Newtonian mechanics.

(informal) A female Einstein (extremely intelligent, clever person).

Einkorn wheat.

(astronomy) A quadruply replicated image of a quasar, in the configuration of a cross, surrounding a central foreground galaxy which caused the replication through gravitational lensing.

(astronomy, physics) A gravitational lens configuration resulting in four duplicated images of the back ground image around the central gravitationally lensing object, in a cross configuration.