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PI Physik Instrumente - Revolution In Photonics Align LW LB 3/24

A Quantum Pen for Single Atoms

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MUNICH, Germany, March 21, 2011 — The ability to observe and control single atoms individually in a lattice of light, to change their spin states and to arrange them in arbitrary patterns has been demonstrated – a discovery that scientists say will advance quantum information processing. Using a microscope, Stefan Kuhr and Immanuel Bloch at Max Planck Institute of Quantum Optics focused a laser beam down to a diameter of about 600 nm, which is just above the lattice spacing, and directed it at individual atoms with high precision. With the help of a laser beam, the scientists could address single atoms in...Read full article

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    Published: March 2011
    Glossary
    nano
    An SI prefix meaning one billionth (10-9). Nano can also be used to indicate the study of atoms, molecules and other structures and particles on the nanometer scale. Nano-optics (also referred to as nanophotonics), for example, is the study of how light and light-matter interactions behave on the nanometer scale. See nanophotonics.
    Basic ScienceChristof Weitenbergelectron shellEuropeGermanyImmanuel BlochLaser Beamlattice of lightMax Planck Institute of Quantum OpticsMicroscopymicrowave photonnanoquantum bitsquantum gatesquantum information processingquantum penResearch & Technologysingle atomsspin statesStefan Kuhrtunneling effectLasers

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