Scientists have demonstrated for the first time that atoms can be guided in a laser beam and possess the same properties as light guided in an optical communications fiber.
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Check out the resources section for a link where you can find resources aligned to the Australian National Science Curriculum. There is some great stuff there if you have a good dig around.
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Jolicloud connects you to all of your favorite online apps, social media, videos, photos and files from any computer in the world. http://ictmagic.wikispaces.com/ -
Jolicloud - Virtual Desktop http://bit.ly/jBLZjh #cloud #edtech #elearning #bookmark #share #collaborate #tech
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We are hoping to go the Jolicloud route this coming school year. Is anyone out there using it? Comments, critiques and suggestions welcome.
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Awards and Contests posted on Tech&Learning- Apply quickly-
Scientists make quantum breakthrough - 25 views
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Abstract
Speckle patterns produced by multiple independent light sources are a manifestation of the coherence of the light field. Second-order correlations exhibited in phenomena such as photon bunching, termed the Hanbury Brown–Twiss effect, are a measure of quantum coherence. Here we observe for the first time atomic speckle produced by atoms transmitted through an optical waveguide, and link this to second-order correlations of the atomic arrival times. We show that multimode matter-wave guiding, which is directly analogous to multimode light guiding in optical fibres, produces a speckled transverse intensity pattern and atom bunching, whereas single-mode guiding of atoms that are output-coupled from a Bose–Einstein condensate yields a smooth intensity profile and a second-order correlation value of unity. Both first- and second-order coherence are important for applications requiring a fully coherent atomic source, such as squeezed-atom interferometry. -
Australian National University
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Today I'm thinking about something I hear a lot: "we have so much to cover" is something I hear in many, many meetings and "there's not enough time to cover it all."
