Microscopic Study of Slablike and Rodlike Nuclei: Quantum Molecular Dynamics Approach

Details Microscopic Study of Slablike and Rodlike Nuclei: Quantum Molecular Dynamics Approach Microscopic Study of Slablike and Rodlike Nuclei: Quantum Molecular Dynamics Approach

2002-05-14

arxiv.org/abs/nucl-th/0205037v2

Phys.Rev. C66 (2002) 012801

Physics

Nuclear Physics

Nuclear Theory

6 pages, 4 figures, RevTex4; to be published in Phys. Rev. C Rapid Communication (accepted version)

Scientific paper

10.1103/PhysRevC.66.012801

Structure of cold dense matter at subnuclear densities is investigated by quantum molecular dynamics (QMD) simulations. We succeeded in showing that the phases with slab-like and rod-like nuclei etc. can be formed dynamically from hot uniform nuclear matter without any assumptions on nuclear shape. We also observe intermediate phases, which has complicated nuclear shapes. Geometrical structures of matter are analyzed with Minkowski functionals, and it is found out that intermediate phases can be characterized as ones with negative Euler characteristic. Our result suggests the existence of these kinds of phases in addition to the simple ``pasta'' phases in neutron star crusts.

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