Is it a solid but flows like a liquid? Success of supersolid two-dimensionalization

It is common knowledge that matter exists in three states, solid, liquid, and gas, in the world as we know it, but it has been confirmed that a state called supersolid that is both solid and liquid in the special environment of cryogenic temperature and high pressure exists. A research team at the Austrian Academy of Sciences Quantum Research Institute reported that they had successfully two-dimensionalized a new supersolid state.

Substances undergo a phase transition due to temperature or pressure. For example, liquid water transitions from solid to liquid at 0 degrees and from liquid to gas at 100 degrees. In response to such a phase transition, when cooled to near absolute zero of helium 4, a set of helium atoms exhibits wave response behavior, and it has been confirmed that the property of superfluidity appears in a fluid even though it is a solid.

What the new research team has achieved this time is supersolid two-dimensionalization. In 2017, a research team from the Zurich Institute of Technology and a research team from the MIT University of Technology reported that they each achieved a supersolid using cryogenic quantum gas, but the droplets formed by the supersolid atoms created by these experiments were one-dimensional in a row.

This research team cooled the 164 sets of dysprosium suspended with optical tweezers to near absolute zero by laser cooling, then loosened the optical tweezers a little, created a supersolid state with the highest energy atomic flow, and achieved supersolid two-dimensionalization.

Until now, there has been a problem in that it is difficult to determine whether a one-dimensional supersolid is actually in a supersolid state. However, two-dimensional supersolids can adopt a judgment method that investigates problems that were not possible in a one-dimensional state, so it is expected to develop related research by leaps and bounds. Related information can be found here.



Through the monthly AHC PC and HowPC magazine era, he has watched 'technology age' in online IT media such as ZDNet, electronic newspaper Internet manager, editor of Consumer Journal Ivers, TechHolic publisher, and editor of Venture Square. I am curious about this market that is still full of vitality.

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