Gyroid Phase in Nuclear Pasta

Ken'Ichiro Nakazato, Kazuhiro Oyamatsu, Shoichi Yamada

    Research output: Contribution to journalArticle

    41 Citations (Scopus)

    Abstract

    Nuclear matter is considered to be inhomogeneous at subnuclear densities that are realized in supernova cores and neutron star crusts, and the structures of nuclear matter change from spheres to cylinders, slabs, cylindrical holes, and spherical holes as the density increases. In this Letter, we discuss other possible structures, that is, gyroid and double-diamond morphologies, which are periodic bicontinuous structures discovered in a block copolymer. Utilizing the compressible liquid drop model, we show that there is a chance of gyroid appearance near the transition point from a cylinder to a slab and the volume fraction at this point is also similar for nuclear and polymer systems. Although the five shapes listed initially have been long thought to be the only major constituents of so-called nuclear pasta at subnuclear densities, our findings imply that this belief needs to be reconsidered.

    Original languageEnglish
    Article number132501
    JournalPhysical Review Letters
    Volume103
    Issue number13
    DOIs
    Publication statusPublished - 2009 Sep 21

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    slabs
    transition points
    block copolymers
    neutron stars
    supernovae
    crusts
    diamonds
    stars
    polymers

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

    Cite this

    Gyroid Phase in Nuclear Pasta. / Nakazato, Ken'Ichiro; Oyamatsu, Kazuhiro; Yamada, Shoichi.

    In: Physical Review Letters, Vol. 103, No. 13, 132501, 21.09.2009.

    Research output: Contribution to journalArticle

    Nakazato, Ken'Ichiro ; Oyamatsu, Kazuhiro ; Yamada, Shoichi. / Gyroid Phase in Nuclear Pasta. In: Physical Review Letters. 2009 ; Vol. 103, No. 13.
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