Global symmetry

(physics) A type of symmetry of the Hamiltonian of a physical system, specifying that the system must obey some general conservation law.

A global symmetry is a symmetry that holds at all points in the spacetime under consideration, as opposed to a local symmetry which varies from point to point.

Global symmetries require conservation laws, but not forces, in physics.

See also

• Field (physics)
• Global spacetime structure
• Local spacetime structure

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