HTML version of Scripted Foils prepared 15 September 1996

Foil 13 Quantum Computing - II

From CPS615-Lecture on Performance(end) and Computer Technologies(start) Delivered Lectures of CPS615 Basic Simulation Track for Computational Science -- 5 September 96. by Geoffrey C. Fox *
Secs 282.2
1 For a "new technology" computer to be useful, one needs to be able to
  • conveniently prepare inputs,
  • conveniently program,
  • reliably produce answer (quicker than other techniques), and
  • conveniently read out answer
2 Conventional computers are built around bit ( taking values 0 or 1) manipulation
3 One can build arbitarily complex arithmetic if have some way of implementing NOT and AND
4 Quantum Systems naturally represent bits
  • A spin (of say an electron or proton) is either up or down
  • A hydrogen atom is either in lowest or (first) excited state etc.
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