Poincaré sphere

Poincaré sphere may refer to:

• Poincaré sphere (optics), a graphical tool for visualizing different types of polarized light
  • Bloch sphere, a related tool for representing states of a two-level quantum mechanical system
• Poincaré homology sphere, in mathematics, an example of a homology sphere

This disambiguation page lists articles associated with the title Poincaré sphere.
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