An Overview of HP's Research Towards Optical Quantum Information Processing

Quantum Information Science is an emerging discipline with the potential to revolutionize computation and communication, but with an extremely high barrier to realizing practical results. After describing a framework for performing optical quantum information processing [1], we will outline a set of key scientific and engineering challenges which must be met before a quantum information technology industry can materialize. As a first step toward developing scalable systems, we will describe experiments showing coherent population trapping in nitrogen- vacancy centers in diamond under optical excitation at zero magnetic field. [2] In addition, we will describe experiments demonstrating fabrication of massive photonic crystals using nanoimprint lithography, and the construction of an all-fiber self-calibrating random number generator based on polarization-entangled photons that generates high-quality cryptographic random numbers and is immune to back-door attacks. \newline \newline [1] W.\ J.\ Munro, et al., J. Opt. B: Quant.\ Semiclass.\ Opt.\ \textbf{7}, S135--S140 (2005). \newline [2] C.\ Santori et. al., arXiv:cond-mat/0602573 (2006).