Parallel Univ erses

• mémoire

To appear in Science and Ultimate Reality: From Quantum to Cosmos, honoring John Wheeler's 90th birthday, J.D. Barrow, P.C.W. Davies, & C.L. Harper eds., Cambridge University Press (2003) Parallel Universes Max Tegmark Dept. of Physics, Univ. of Pennsylvania, Philadelphia, PA 19104; (January 23 2003.) Abstract: I survey physics theories involving parallel universes, which form a natural four-level hierarchy of multiverses allowing progressively greater diversity.

• ours
• quantum fluctuations
• verse square law to an inverse cube law
• space
• physics
• theory
• model