217 research outputs found

    Vacuum thermal conductivity measurements of NASA E4A1 elastomeric heat shield material

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    Line source vacuum thermal conductivity measures for elastomeric heat shield materia

    Time-of-Flight Measurements as a Possible Method to Observe Anyonic Statistics

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    We propose a standard time-of-flight experiment as a method for observing the anyonic statistics of quasiholes in a fractional quantum Hall state of ultracold atoms. The quasihole states can be stably prepared by pinning the quasiholes with localized potentials and a measurement of the mean square radius of the freely expanding cloud, which is related to the average total angular momentum of the initial state, offers direct signatures of the statistical phase. Our proposed method is validated by Monte Carlo calculations for ν=1/2\nu=1/2 and 1/31/3 fractional quantum Hall liquids containing a realistic number of particles. Extensions to quantum Hall liquids of light and to non-Abelian anyons are briefly discussed.Comment: Title change, enhanced Supplemental Material, almost published version (to appear in Phys. Rev. Lett.

    Analytical investigation of side jet supersonic stream interaction including vortex flow in rocket nozzles for thrust vector control

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    Analytical investigation of side jet supersonic stream interaction including vortex flow in rocket nozzles for thrust vector contro
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