# Parallel Transport on a 2-Sphere

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In a manifold, vector bundles can be defined as parallel [1]. This Demonstration shows how parallel transport approximately appears on a sphere (a 2-manifold). The idea behind parallel transport is that a vector can be transported about the geometric surface while remaining parallel to an affine connection, a geometrical object that connects two tangent spaces on the surface. This is shown as two vectors starting at the same point on the sphere, ; then one is transported along the geodesic (the shortest line on a surface connecting two points) from to , while the other vector is shown traveling from to , then from to . Now the formerly parallel vectors are perpendicular, having moved on different paths on the surface, but remaining parallel to their respective connections along the way.

Contributed by: Jay Hebert (January 2013)

Open content licensed under CC BY-NC-SA

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Reference

[1] Wikipedia. "Parallel Transport." (Sept 15, 2012) en.wikipedia.org/wiki/Parallel_transport.

## Permanent Citation

"Parallel Transport on a 2-Sphere"

http://demonstrations.wolfram.com/ParallelTransportOnA2Sphere/

Wolfram Demonstrations Project

Published: January 25 2013