QFT

QFT is a three-letter abbreviation with multiple meanings, as described below:

• quantitative feedback theory.
• quantum field theory, the theory of quantum mechanics for field-like systems.
• the quantum Fourier transform, a discrete Fourier transform.
• Queen's Film Theatre, a cinema in Northern Ireland.
• "QFT", internet slang usually meaning "quoted from truth". This term applies on forums and posting boards where users can edit their posts, and describes a re-posting of another user's statement in order to counteract subsequent changes. Since the repost is not made by the original author, it can not be edited by him and will always preserve an unaltered copy of his initial contribution. Thus the QFT holds the poster to his original statement. It is also used - in the form of the slightly-altered "quoted for truth" - to express agreement with a previous poster's statement and validate its veracity. Other variations include "quoted for truthiness," "quoted for truthery," and "quite fucking true". QFT can also mean "quit fucking talking".