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  1. Quantum computer that ‘computes without running’ sets efficiency record

    This came out so many months ago, I can’t for the life of me remember if I posted it before:

    NOAA Fiddles With Climate Data To Erase The 15-Year Global Warming ‘Hiatus’
    Daily Caller | 06/04/2015 | Michael Bastasch

    National Oceanic and Atmospheric Administration scientists have found a solution to the 15-year “pause” in global warming: They “adjusted” the hiatus in warming out of the temperature record.

    New climate data by NOAA scientists doubles the warming trend since the late 1990s by adjusting pre-hiatus temperatures downward and inflating temperatures in more recent years.

    “Newly corrected and updated global surface temperature data from NOAA’s [National Centers for Environmental Information] do not support the notion of a global warming ‘hiatus,’” wrote NOAA scientists in their study presenting newly adjusted climate data.

    Pffft. At least they did beat the egghead physicists to one discovery: counterfactual computation:

    Quantum computer that ‘computes without running’ sets efficiency record
    PhysOrg | 8/31/15 | Lisa Zyga

    Due to quantum effects, it’s possible to build a quantum computer that computes without running –or as the scientists explain, “the result of a computation may be learned without actually running the computer.”

    So far, however, the efficiency of this process, which is called counterfactual computation (CFC), has had an upper limit of 50%, limiting its practical applications.

    Now in a new paper, scientists have experimentally demonstrated a slightly different version called a “generalized CFC” that has an efficiency of 85% with the potential to reach 100%. /blockquote cite=””>

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