correlator

In quantum field theory a *correlator* is an assignment of probability amplitudes to a collection of incoming and outgoing states. In FQFT a correlator is simply the value of the theory on a given (class of) cobordisms.

**holographic principle in quantum field theory**

bulk field theory | boundary field theory |
---|---|

dimension $n+1$ | dimension $n$ |

field | source |

wave function | correlation function |

space of quantum states | conformal blocks |

Revised on September 12, 2013 23:31:48
by Urs Schreiber
(145.116.131.249)