Super controlled gates and controlled gates in two-qubit gate simulations

Details Super controlled gates and controlled gates in two-qubit gate simulations Super controlled gates and controlled gates in two-qubit gate simulations

2004-07-15

arxiv.org/abs/quant-ph/0407108v1

Physics

Quantum Physics

4 pages, no figures

Scientific paper

In two-qubit gate simulations an entangling gate is used several times together with single qubit gates to simulate another two-qubit gate. We show how a two-qubit gate's simulation power is related to the simulation power of its mirror gate. And we show that an arbitrary two-qubit gate can be simulated by three applications of a super controlled gate together with single qubit gates. We also give the gates set that can be simulated by n applications of a controlled gate in a constructive way. In addition we give some gates which can be used four times to simulate an arbitrary two-qubit gate.

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