Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2009-04-03
Phys.Rev.Lett.103:121101,2009
Physics
Nuclear Physics
Nuclear Theory
4 pages, 3 figures, to appear in Phys. Rev. Lett. as an Editors' Suggestion
Scientific paper
10.1103/PhysRevLett.103.121101
In supernova cores, nuclear "pasta" phases such as triangular lattice of rod-like nuclei and layered structure of slab-like nuclei are considered to exist. However, it is still unclear whether or not they are actually formed in collapsing supernova cores. Using {\it ab-initio} numerical simulations called the Quantum Molecular Dynamics (QMD), we here solve this problem by demonstrating that a lattice of rod-like nuclei is formed from a bcc lattice by compression. We also find that, in the transition process, the system undergoes zigzag configuration of elongated nuclei, which are formed by a fusion of two original spherical nuclei.
Ebisuzaki Toshikazu
Maruyama Toshiki
Sato Katsuhiko
Sonoda Hidetaka
Watanabe Gentaro
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