Can a Universal Quantum Computer Be Fully Quantum?
John M. Myers · Physical Review Letters · 1997
A conflict is pointed out in the definition of a universal quantum computer between the need for a halt qubit and the need for operating on superpositions of states of a computational basis.Received 3 December 1996DOI:https://doi.org/10.1103/PhysRevLett.78.1823©1997 American Physical Society