Scaling Considerations in Ground State Quantum Computation

Details Scaling Considerations in Ground State Quantum Computation Scaling Considerations in Ground State Quantum Computation

2000-07-02

arxiv.org/abs/quant-ph/0007001v1

Physics

Quantum Physics

14 pages, 1 figure

Scientific paper

We study design challenges associated with realizing a ground state quantum computer. In such a computer, the energy gap between the ground state and first excited state must be sufficiently large to prevent disruptive excitations. Here, an estimate is provided of this gap as a function of computer size. We then address the problem of detecting the output of a ground state quantum computer. It is shown that the exponential detection difficulties that appear to be present at first can be overcome in a straightforward manner by small design changes.

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