Quantum waveguide array generator for performing Fourier transforms: Alternate route to quantum computing

Recently, quantum computing has gained attention as a possible means of gre atly increasing the speed of certain calculations when compared with tradit ional, binary computing. A key part of many quantum computing algorithms is the performance of a Fourier transform. In this letter, we propose a quant um waveguide array device that can perform such operations quickly with a p arallel approach that uses the analog properties of waves and rather than t he qubit concept. (C) 2001 American Institute of Physics.