A quantum computer with fixed interaction is universal
Yuri Ozhigov, Leonid Evgenevich Fedichkin · Journal of Experimental and Theoretical Physics Letters · 2003
It is proved that a quantum computer with fixed and permanent interaction of diagonal type between qubits proposed in the work quant-ph/0201132 is universal. Such a computer is controlled only by one-qubit quick transformations, and this makes it feasible.