Poincaré sphere
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Poincaré sphere, often spelled Poincare sphere (without the accent) may refer to:
- Poincaré sphere, in optics, is a graphical tool for visualizing different types of polarized light
- Poincaré homology sphere, in mathematics, an example of a homology sphere
In condensed matter physics, the Poincaré sphere is also known as the Bloch sphere.
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