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    Category Physics

    Findings could spur Energy-Saving Electronics, Quantum Computing

    June 5, 2018, Categories  Physics, Technology/Electronics

    An exotic magnetic insulator conducts electricity along its edges without energy loss. The M stands for magnetization of the magnet, and this GIF shows the magnetization reversal process (red to blue and vice versa). Image: Wenbo Wang/Rutgers University-New Brunswick

    An exotic magnetic insulator conducts electricity along its edges without energy loss. The M stands for magnetization of the magnet, and this GIF shows the magnetization reversal process (red to blue and vice versa). Image: Wenbo Wang/Rutgers University-New Brunswick

     
    A Rutgers-led team of physicists has demonstrated a way to conduct electricity between transistors without energy loss, opening the door to low-power electronics and, potentially, quantum computing that would be far faster than today’s computers. Their findings, which involved using a special mix of materials with magnetic and insulator properties, are published online in Nature Physics.
     
    “This material, although it’s much diluted in terms of magnetic properties, can still behave like a magnet and conducts elec...
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    XENON1T experimental data establishes most stringent Limit on Dark Matter

    May 31, 2018, Categories  Physics, Astronomy/Space

    Experimental results from the XENON1T dark matter detector limit the effective size of dark matter particles to 4.1X10-47 square centimeters--one-trillionth of one-trillionth of a centimeter squared--the most stringent limit yet determined for dark matter as established by the world's most sensitive detector. Credit: XENON Collaboration

    Experimental results from the XENON1T dark matter detector limit the effective size of dark matter particles to 4.1X10-47 square centimeters–one-trillionth of one-trillionth of a centimeter squared–the most stringent limit yet determined for dark matter as established by the world’s most sensitive detector. Credit: XENON Collaboration

    Analysis scours 276 days of data from world’s most sensitive detector. Experimental results from the XENON1T dark matter detector limit the effective size of dark matter particles to 4.1 x 10-47 square centimeters – one-trillionth of one-trillionth of a centimeter squared – the most stringent limit yet determined for dark matter as established by the world’s most sensitive detector.

    The results, presented Monday in a seminar in Italy at the Gran Sasso Undergr...

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    Black Holes from an Exacomputer

    May 30, 2018, Categories  Physics, Technology/Electronics

    Black Holes From an Exacomputer

    Time evolution of the contour surfaces of the lapse α and the shift vector βi for the head-on collision of two puncture black holes of equal mass M=1 at times t=0,5,7,8,10M and t=15M, from top left to bottom right. Phys. Rev. D 97, 084053, 2018; doi:10.1103/PhysRevD.97.084053

    Scientists develop simulation code for new generation of supercomputers. What happens when two black holes merge, or when stars collide with a black hole? This has now been simulated using a novel numerical method. The simulation code ‘ExaHyPE’ is designed in such a way that it will be able to calculate gravitational waves on the future generation of ‘exascale’ supercomputers.

    The challenge in simulating black holes lies in the necessity of solving the complex Einstein system of equations...

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    Scientists Shrink Chemistry Lab to seek evidence of Life on Mars

    May 28, 2018, Categories  Physics, Technology/Electronics

    This is a close-up of the MOMA instrument. Credit: NASA

    This is a close-up of the MOMA instrument. Credit: NASA

    An international team of scientists has created a tiny chemistry lab for a rover that will drill beneath the Martian surface looking for signs of past or present life. The toaster oven-sized lab, called the Mars Organic Molecule Analyzer or MOMA, is a key instrument on the ExoMars Rover, a joint mission between the European Space Agency and the Russian space agency Roscosmos, with a significant contribution to MOMA from NASA. It will be launched toward the Red Planet in July 2020...

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