D-Wave Slides from SC07 progress in quantum computing panel

[Tyler Durden]

Sorry...I'm just a little sceptical...'faster' and 'reversible' don't really
go together in quantum computation as the power of a quantum computer derives
directly from wavefunction collapse. Sounds a little perpetual motion
machine-ish.

-TD> Date: Sat, 1 Dec 2007 17:33:54 -0800> From: coderman at gmail.com> To:
cypherpunks at al-qaeda.net> Subject: D-Wave Slides from SC07 progress in quantum
computing panel> CC: cypherpunks at jfet.org> >
http://dwave.wordpress.com/2007/11/26/slides-from-sc07-progress-in-quantum-co
mputing-panel/> > click on Mr. T for the power point file. (hah!)> > i love
the prominent featuring of Google partnership on this project.> surely Google
/ In-Q-Tel dollars will surge through the floodgates of> measured skepticism
shortly...> > some highlights:> > ---> > D-Wave approach: Superconducting
adiabatic quantum computer> > - Extremely fast: Special purpose processor;
superconducting> electronics are naturally fast (700+ GHz)> > - Extremely low
power: In principle reversible (zero heat generation);> in practice power
consumption & heat generation drastically reduced> (factors of millions)> > -
At the limits of physics: Universal quantum computer can't do better> > --->
> slides 14-21 are nice visualizations of the adiabatic QC implementation and
use.> > ---> > adiabatic quantum computation model:> > - Computer initialized
in "easy to reach" (convex) ground state> > - Answer encoded in final state> >
- All currents adjusted slowly enough so that system remains in ground> state
at all times> > - AQC can be universal for QC [ed: this is the crux,
algorithms to> express some problems in AQC model difficult (right now)]> > -
AQC is exact by definition> > ---> > quantum annealing computation model:> > -
Computer initialized in ground state> > - Answer encoded in final state> > -
All currents adjusted over period of time fixed by user [ed: key> difference
wrt AQC]> > - QA is a heuristic algorithm [ed: key difference wrt AQC]> > --->
> D-Wave processors can implement either AQC or QA models of computation.> >
---> > Summary of preliminary result> > - A set of progressively more powerful
superconducting quantum> processors have been built [ed: 28 qubits in demo]> >
- Next generation Q3/2008 targets competition with incumbent QUBO> solver
methods (500+ qubits)> > - Web services architecture operational at several
levels of> abstraction from hardware; APIs documented and available
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