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.
Cobalt Qube
The Cobalt Qube was a computer server appliance product line developed by Cobalt Networks, Inc. (later purchased by Sun Microsystems) featuring a modified Red Hat Linux operating system and a proprietary GUI for server management. The original Qube systems were equipped with RM5230 or RM5231 microprocessors but later models used AMD K6-2 chips. NetBSD operating system has been ported to both the Cobalt Qube and RaQ (see External links).