A one-way quantum computer

Phys Rev Lett. 2001 May 28;86(22):5188-91. doi: 10.1103/PhysRevLett.86.5188.


We present a scheme of quantum computation that consists entirely of one-qubit measurements on a particular class of entangled states, the cluster states. The measurements are used to imprint a quantum logic circuit on the state, thereby destroying its entanglement at the same time. Cluster states are thus one-way quantum computers and the measurements form the program.