# Computing ModelsΒΆ

- Universal quantum computer:
The quantum-circuit or Gate Model will be described in the next chapters.

A variant is the

*measurement-based model*playing a main role in the Photonics Quantum Computer Realization.

- Adiabatic quantum computer:
The major algorithm run on an adiabatic quantum computer is called

**Quantum Annealing**.This computing model has not of universal purpose, but can be used to solved combinatorial optimization problems.

see the chapter devoted to Adiabatic Quantum Computer.

- Topological quantum computer:
a not-so-easy-to-grasp approach based on quantum systems living in a 2-dimensional physical space, that would inherently possess a great stability and resistance to noise,

still not (or at least not conclusively) experimentally verified,

see the chapter devoted to Topological Quantum Computer.