Hamiltonians for Quantum Computing

Details Hamiltonians for Quantum Computing Hamiltonians for Quantum Computing

1997-05-13

arxiv.org/abs/quant-ph/9705026v1

Proc. SPIE 3076, 84-96 (1997)

Physics

Quantum Physics

13 pages in LaTeX

Scientific paper

10.1117/12.277664

We argue that the analog nature of quantum computing makes the usual design approach of constructing complicated logical operations from many simple gates inappropriate. Instead, we propose to design multi-spin quantum gates in which the input and output two-state systems (spins) are not necessarily identical. We outline the design criteria for such devices and then review recent results for single-unit Hamiltonians that accomplish the NOT and XOR functions.

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