A measurement operation is denoted by a meter symbol and always takes as input a qubit register denoted by a solid line and outputs classical information denoted by a double line. Polyacetylene was chosen because it's a well-known model and could therefore be used to prove that the computer was correctly simulating the movement of electrons through the molecule. This follows by applying the Chernoff bound. Quantum teleportation is a method for moving data within a quantum computer or even between distant quantum computers in a quantum network through the use of entanglement and measurement. Putting them together means producing a new circuit by connecting some set of k outputs of f to some set of k inputs of g as in the figure below. For quantum circuits a similar composition of qubit gates can be defined. Why not quantum computing? Using Dirac ket notation, if x 1 , x 2 ,