We discuss the implementation of arbitrary precision composite pulses developed using the methods of Brown et al. [K.R. Brown, A.W. Harrow, I.L. Chuang, Arbitrarily accurate composite pulse sequences, Phys. Rev. A 70 (2004) 052318]. We give explicit results for pulse sequences designed to tackle both the simple case of pulse length errors and the more complex case of off-resonance errors. The r...

1 Institute for Pervasive Computing, Johannes Kepler University, Altenberger Strasse 69, 4040 Linz, Austria 2UCT Research & Design Department, University of Applied Sciences Vorarlberg, Hochschulstraße 1, 6850 Dornbirn, Austria 3Department of Broadcasting Telecommunications and Mass Media, Temple University, Room 203B Annenberg Hall, Main Campus, 1801 N. Broad Street, Philadelphia, PA 19122, US...

1. Explore applications of the recent ”Quantum Algorithm for Linear Systems of Equations” by Harrow, Hassidim and Lloyd [5]. This algorithm can solve a linear system of the form Ax = b, in time logarithmic in the dimensions of A, an exponential improvement over classical algorithms. However, the quantum algorithm cannot output the vector solution x explicitly, but only give an approximation to ...

The quality of sugarcane broth can be affected by soil management. In compacted soils the productivity is reduced, and raw material poor. This research aimed to evaluate for four management types: (CT) heavy harrow + light harrow; (CTI) Subsoiler (MT) (NT) no movement. variables investigated were resistance penetration (SPR), chemical (broth) crop yield. rows, SPR did not reach severe levels up...

a one-way moldboard plow turns over soil in only one direction. problems created by this type of tillage in iran include compaction of boundary regions, decreased efficiency of irrigation and disruption of bed leveling, requiring the use of bed-leveling equipment every few years. to overcome these problems, the use of a two-way plow with two harrows which turns over the soil to both the left an...

Dr Gerald Loewi was Senior Research Scientist and Consultant Pathologist at the Medical Research Council (MRC) Rheumatism Research Unit at Taplow, England and subsequently the MRC Clinical Research Centre, Harrow, England. An immunologist with a background in pathology, he made major contributions to our understanding of the immunopathology of rheumatoid arthritis and other rheumatic disorders....