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A graphic representation of the two-photon quantum walk. This unique behavior simulates the quantum walks in more complex spaces. The size, color and intensity of the points corresponds to the likelihood of the two photons appearing each location. The two areas of increased probability is a hallmark of quantum behavior.
The photonic chip next to a UK penny. The chip contains micrometer and sub-micrometer features and guide light using a network of waveguides. The output of this network can be seen on the surface of the chip.
Research physicists Jonathan Matthews (left) and Kostas Poulios aligning the quantum optical chip. The photons are injected into the chip using optical fibre and requires precision alignment.
Research conducted at the University of Bristol means a number of quantum computing algorithms may soon be able to execute calculations of a complexity far beyond what today's computers allow us to do. The breakthrough involves the use of a specially designed optical chip to perform what's known as a "quantum walk" with two particles ... and it suggests the era of quantum computing may be approaching faster than the scientific establishment had predicted.
Read the full article: Two-photon walk a giant stride for quantum computing
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