Quantum Computation and Learning : Proc. Int. Workshop, September 1999, Riga

Richard Bonner

Richard Bonner, Rūsiņš Freivalds

Quantum Computation and Learning : Third International Workshop, QCL 2002Riga, Latvia, Revised Proceedings

Simon Perdrix

We improve the upper bound on the minimal resources required for measurement-only quantum computation (M A Nielsen 2003 Phys. Rev. A 308 96–100; D W Leung 2004 Int. J. Quantum Inform. 2 33; S Perdrix 2005 Int. J. Quantum Inform. 3 219–23). Minimizing the resources required for this model is a key issue for experimental realization of a quantum computer based on projective measurements. This new upper bound also allows one to reply in the negative to the open question presented by Perdrix (2004 Proc. Quantum Communication Measurement and Computing ) about the existence of a trade-off between observable and ancillary qubits in measurement-only QC.

James Taylor Lewis Grimmelmann

Jeffrey Yepez, Timothy F. Havel

This workshop focused on the development of prototype quantum information processors, quantum algorithms used for physical modeling applications, and efficient numerical simulations. The Air Force Research Laboratory hosted the Quantum Computation for Physical Modeling (QCPM) Workshop 2004 on 12-15 September 2004, our third bi-annual workshop on quantum computation for physical modeling held at The Harbor View Hotel on Martha's Vineyard. The workshop was hosted by our laboratory and sponsored by the Air Force Office of Scientific Research (AFOSR). The three day workshop comprised six sessions spanning the following research areas: (1) quantum algorithms; (2) quantum effects and devices; (3) superconductive quantum information processing; (4) nuclear magnetic resonance quantum information processing; (5) quantum information, quantum cryptography and quantum communication. We reviewed the research progress carried out by our extramural university research programs following our laboratory's in-house basic research mission and funded through confederated AFOSR grants. Our workshop focused on the development of prototype quantum information processors and quantum algorithms used for physical modeling applications and efficient numerical simulations. The workshop was an outstanding and unqualified success and represents a new milestone in our progress toward achieving a practical quantum computer using state-of-the-art nanotechnology.

Thierry Paul

This special issue of Mathematical Structures in Computer Science contains several contributions to the Workshop 3 corps, classique-quantique, discret-continu. The Workshop was held at the Ecole Normale Supérieure, Paris on 28–29 September 2004 in the framework of the Collectif Histoire Philosophie Sciences. The Workshop was organised by Giuseppe Longo and Thierry Paul with the aim of bringing together mathematicians, physicists, computer scientists and philosophers.