Superluminal communication is the term used to describe the hypothetical process by which one might send information at faster-than-light (FTL) speeds. Scientific investigation has thus far produced no empirical evidence for superluminal communication.
Some theories and experiments include:
- Group velocity > c experiments
- evanescent wave coupling
- Tachyons
- Quantum non-locality
See also: Ansible, Faster-than-light, light, Speed of light, Quantum teleportation