from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A topological space in which every small enough neighborhood is homeomorphic to a quotient of real space by the action of a finite group.


from Wiktionary, Creative Commons Attribution/Share-Alike License

Named by William Thurston. From orbit and manifold.


  • It has something to do with maximal supersymmetry, orbifold compactifications, Calabi-Yau spaces and other matters a bit beyond the scope here.

    Telekinesis and Quantum Field Theory

  • Maldecena and Lin conjecture that orbifold solutions in String Theory could decay into these soliton states as tachyons condense.

    Archive 2006-02-12

  • A test against some explicit orbifold calculations works.

    The Reference Frame

  • Did Beethoven’s brain really exhibit patterns of orbifold compactification of D2-branes?

    Do Atheists Exist?

  • Another test passes: a comparison with Wilson loop vevs in a dual large N Chern-Simons theory (on a Z_p orbifold of

    The Reference Frame


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