John Toner, D.P. Divincenzo
Physical Review B
We present numerical results which show how two-bit logic gates can be used in the design of a quantum computer. We show that the Toffoli gate, which is the universal gate for all classical reversible computation, can be implemented using a particular sequence of exactly five two-bit gates. An arbitrary three-bit unitary gate, which can be used to build up any arbitrary quantum computation, can be implemented exactly with six two-bit gates. The ease of implementation of any particular quantum operation is dependent upon a very nonclassical feature of the operation, its exact quantum phase factor.
John Toner, D.P. Divincenzo
Physical Review B
D.D. Awschalom, D.P. Divincenzo, et al.
Physical Review Letters
R. Landauer
PhysComp 1994
C.H. Bennett, D.P. DiVincenzo, et al.
Physical Review Letters