Classical simulation of limited-width cluster-state quantum computation

Details Classical simulation of limited-width cluster-state quantum computation Classical simulation of limited-width cluster-state quantum computation

2006-01-26

arxiv.org/abs/quant-ph/0601178v1

Physics

Quantum Physics

4 pages, 1 figure

Scientific paper

10.1103/PhysRevLett.96.170503

We present a classical protocol, using the matrix product state representation, to simulate cluster-state quantum computation at a cost polynomial in the number of qubits in the cluster and exponential in d -- the width of the cluster. We use this result to show that any log-depth quantum computation in the gate array model, with gates linking only nearby qubits, can be simulated efficiently on a classical computer.

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