Physics – Quantum Physics
Scientific paper
2003-07-25
Phys. Rev. A 68, 052311 (2003)
Physics
Quantum Physics
6 pages
Scientific paper
10.1103/PhysRevA.68.052311
We give a simple proof of a formula for the minimal time required to simulate
a two-qubit unitary operation using a fixed two-qubit Hamiltonian together with
fast local unitaries. We also note that a related lower bound holds for
arbitrary n-qubit gates.
Childs Andrew M.
Haselgrove Henry L.
Nielsen Michael A.
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