A comparison of Bose-Einstein condensate (bosons) and fermionic clouds (fermions) of lithium isotopes at decreasing temperatures (810 nK, 510 nK, 240 nK). The bosons clump together, while the fermions maintain distance, demonstrating the Pauli Exclusion Principle.

Astronomy Picture from 19/02/2003

Pauli Exclusion Principle: Why You Don't Implode

Source: https://apod.nasa.gov/apod/ap030219.html


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