Algorithmic cooling
A qubit (or quantum bit) is a unit of information that can be in a superposition of two states, denoted as formula_1 and formula_2. The general superposition can be written as formula_3where formula_4 and formula_5. If one measures the state of the qubit in the orthonormal basis composed of formula_1 and formula_2, one gets the result formula_1 with probability formula_9 and the result formula_2 with probability formula_11.
Quaject
In computer science, a quaject is an object-like data structure containing both data and code (or pointers to code), exposed as an interface in the form of "callentries", and can accept a list of callentries to other quajects for "callbacks" and "callouts". They were developed by Alexia Massalin in 1989 for the "Synthesis kernel", and named for the "Qua! Machine", a unique hardware platform built by Massalin. The origin of the term 'qua' is unclear; Massalin claims humorously that it is a sound made by koalas.