Exotic Energy

Exotic Energy
Image from Steve Bowers

The common term for averaged null energy condition (ANEC)-violating negative energy, also sometimes known as phantom energy. Technically known as negative stress-energy tensor fields.

Exotic energy is used to keep traversable wormholes open. Macroscale traversable wormholes use a relatively small quantity of exotic energy, but need to be located in a region of asymptotically flat space at least 327 AU in radius. Microscale Hayward wormholes have a much less restrictive requirement for a flatspace environment, but require considerably greater amounts of exotic energy.

Exotic energy is also required for the operation of reactionless drives, as the void bubbles used in such propulsion systems are stabilized using negative energy.

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Development Notes
Text by Steve Bowers
Initially published on 22 February 2010.

FAQs about Exotic Matter and Energy here and here.