Phys. Rev. A 71, 060309(R) (2005) [4 pages]Efficiency of the ground-state quantum computer
The energy gap is calculated for a ground-state quantum computer circuit. It is found that, when implementing a quantum algorithm by Hamiltonians containing only pairwise interaction, the inverse of energy gap is proportional to N4k, where N is the number of bits involved in the problem, and Nk is the number of control operations performed in a standard quantum paradigm. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.71.060309
DOI:
10.1103/PhysRevA.71.060309
PACS:
03.67.Lx
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