Universal quantum computation using only projective measurement, quantum memory, and preparation of the 0 state

Details Universal quantum computation using only projective measurement, quantum memory, and preparation of the 0 state Universal quantum computation using only projective measurement, quantum memory, and preparation of the 0 state

2001-08-06

arxiv.org/abs/quant-ph/0108020v1

Phys. Lett. A. 308 (2-3): 96-100 (2003)

Physics

Quantum Physics

4 pages

Scientific paper

10.1016/S0375-9601(02)01803-0

What resources are universal for quantum computation? In the standard model, a quantum computer consists of a sequence of unitary gates acting coherently on the qubits making up the computer. This paper shows that a very different model involving only projective measurements, quantum memory, and the ability to prepare the |0> state is also universal for quantum computation. In particular, no coherent unitary dynamics are involved in the computation.

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