I show that quantum theory is the only probabilistic framework that permits arbitrary processes to be emulated by sequences of local measurements. This supports the view that, contrary to conventional wisdom, measurement should not be regarded as a complex phenomenon in need of a dynamical explanation but rather as a primitive – and perhaps the only primitive – operation of the theory. ∗email: ...

We present a new image-based process for measuring surface reflectance rapidly, completely, and accurately. Requiring only a digital camera, a light source, and a convex curved test sample, our method can measure the BRDF with high resolution and accuracy over a very large domain of illumination and reflection directions. We have verified our measurements both by tests of internal consistency a...

Generating entanglement between more parties is one of the central tasks and challenges in backdrop building quantum technologies. Here we propose a measurement-based protocol for producing multipartite entangled states which can be later fed into some network realizing suitable protocols. We consider weak entangling measurement on two as basic unit operation to create starting from an state wi...

GIS designs have evolved over the past 30 years, and once adopted a design tends to persist as a legacy despite progress in fundamental research. A feature of most GIS designs is the representation of position by derived coordinates, rather than by original measurements. In such coordinate-based GIS it is impossible to apply traditional error analysis, or to estimate uncertainties in derived pr...

The measurement of image disparity is a fundamental precursor to binocular depth estimation. Recently, Jenkin and Jepson (1988) and Sanger (1988) described promising methods based on the output phase behaviour of band-pass Gabor lters. Here we discuss further justiication for such techniques based on the stability of band-pass phase behaviour as a function of typical distortions that exist betw...

References: A. M. Childs, D. W. Leung and M. A. Nielsen, “Unified deprivations of measurement-based schemes for quantum computation,” Phys. Rev. A 71 (2005) 032318; arXiv:quant-ph/0404132. D. E. Browne and H. J. Briegel, “One-way Quantum Computation,” arXiv:quant-ph/0603226 M. A. Nielsen, “Cluster-state quantum computation,” Reports on Mathematical Physics 57 (2006) 141; arXiv:quant-ph/0504097v...