Dear volunteers,

Your contribution over the last 3 years to the AQUA@home project was critical for us to perform immense computations necessary for the advancement of our science and technology. We have published several scientific papers reporting the results of those computations, including <a href="http://www.nature.com/nature/journal/v473/n7346/full/nature10012.html" rel="nofollow">our recent publication in Nature</a>. We made sure to acknowledge your generous contributions in those papers, as your help was vital. At this time, however, we no longer have large computations requiring the computing power of AQUA@home. We therefore have come to the decision to shut down AQUA for the forseeable future. Thank-you again for the selfless devotion of your time, patience, and computing resources to our effort to progress the field of quantum computing.

Sincerely,
Neil Dickson

A list of the scientific papers you've helped make possible:

<u>Investigating the Performance of an Adiabatic Quantum Optimization Processor</u>, in Quantum Information Processing, preprint available at <a href="http://arxiv.org/abs/1006.4147" rel="nofollow">http://arxiv.org/abs/1006.4147</a>

<u>Robust Parameter Selection for Parallel Tempering</u>, in International Journal of Modern Physics C, Volume 21, issue 5, 2010, preprint available at <a href="http://arxiv.org/abs/1004.2840" rel="nofollow">http://arxiv.org/abs/1004.2840</a>

<u>High-Performance Physics Simulations Using Multi-Core CPUs and GPGPUs in a Volunteer Computing Context</u>, in International Journal of High Performance Computing Applications, Volume 25, No. 1, 2011, preprint available at <a href="http://arxiv.org/abs/1004.0023" rel="nofollow">http://arxiv.org/abs/1004.0023</a>

<u>Importance of Explicit Vectorization for CPU and GPU Software Performance</u>, in Journal of Computational Physics, Volume 230, Issue 13, 2011, preprint available at <a href="http://arxiv.org/abs/1004.0024" rel="nofollow">http://arxiv.org/abs/1004.0024</a>

<u>A Performance Comparison of CUDA and OpenCL</u>, preprint available at <a href="http://arxiv.org/abs/1005.2581" rel="nofollow">http://arxiv.org/abs/1005.2581</a>

<u>Quantum Annealing with Manufactured Spins</u>, in <a href="http://www.nature.com/nature/journal/v473/n7346/full/nature10012.html" rel="nofollow">Nature, Volume 473, Issue 7346, 2011</a>

<u>Algorithmic Approach to Adiabatic Quantum Optimization</u>, preprint available at <a href="http://arxiv.org/abs/1108.3303" rel="nofollow">http://arxiv.org/abs/1108.3303</a>