Simulation of Transitions between “Pasta” Phases in Dense Matter

Gentaro Watanabe, Toshiki Maruyama, Katsuhiko Sato, Kenji Yasuoka, and Toshikazu Ebisuzaki
Phys. Rev. Lett. 94, 031101 – Published 25 January 2005

Abstract

Calculations of equilibrium properties of dense matter predict that at subnuclear densities nuclei can be rodlike or slablike. To investigate whether transitions between phases with nonspherical nuclei can occur during the collapse of a star, we perform quantum molecular dynamic simulations of the compression of dense matter. We have succeeded in simulating the transitions between rodlike and slablike nuclei and between slablike nuclei and cylindrical bubbles. Our results strongly suggest that nonspherical nuclei can be formed in the inner cores of collapsing stars.

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  • Received 23 August 2004

DOI:https://doi.org/10.1103/PhysRevLett.94.031101

©2005 American Physical Society

Authors & Affiliations

Gentaro Watanabe1,2,3, Toshiki Maruyama4, Katsuhiko Sato2,5, Kenji Yasuoka6, and Toshikazu Ebisuzaki3

  • 1NORDITA, Blegdamsvej 17, DK-2100 Copenhagen Ø, Denmark
  • 2Department of Physics, University of Tokyo, Tokyo 113-0033, Japan
  • 3The Institute of Chemical and Physical Research (RIKEN), Saitama 351-0198, Japan
  • 4ASRC, Japan Atomic Energy Research Institute, Tokai, Ibaraki 319-1195, Japan
  • 5Research Center for the Early Universe, University of Tokyo, Tokyo 113-0033, Japan
  • 6Department of Mechanical Engineering, Keio University, Yokohama 223-8522, Japan

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Issue

Vol. 94, Iss. 3 — 28 January 2005

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