Abstract
In supernova cores, nuclear "pasta" phases such as a triangular lattice of rodlike nuclei and layered structure of slablike nuclei are considered to exist. However, it is still unclear whether or not they are actually formed in collapsing supernova cores. Using ab initio simulations called quantum molecular dynamics, here we solve this problem by demonstrating that a lattice of rodlike nuclei is formed from a bcc lattice by compression. We also find that, in the transition process, the system undergoes a zigzag configuration of elongated nuclei, which are formed by a fusion of two original spherical nuclei.
| Original language | English |
|---|---|
| Article number | 121101 |
| Journal | Physical Review Letters |
| Volume | 103 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 2009 Sep 14 |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Formation of nuclear "pasta" in supernovae. / Watanabe, Gentaro; Sonoda, Hidetaka; Maruyama, Toshiki; Sato, Katsuhiko; Yasuoka, Kenji; Ebisuzaki, Toshikazu.
In: Physical Review Letters, Vol. 103, No. 12, 121101, 14.09.2009.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Formation of nuclear "pasta" in supernovae
AU - Watanabe, Gentaro
AU - Sonoda, Hidetaka
AU - Maruyama, Toshiki
AU - Sato, Katsuhiko
AU - Yasuoka, Kenji
AU - Ebisuzaki, Toshikazu
PY - 2009/9/14
Y1 - 2009/9/14
N2 - In supernova cores, nuclear "pasta" phases such as a triangular lattice of rodlike nuclei and layered structure of slablike nuclei are considered to exist. However, it is still unclear whether or not they are actually formed in collapsing supernova cores. Using ab initio simulations called quantum molecular dynamics, here we solve this problem by demonstrating that a lattice of rodlike nuclei is formed from a bcc lattice by compression. We also find that, in the transition process, the system undergoes a zigzag configuration of elongated nuclei, which are formed by a fusion of two original spherical nuclei.
AB - In supernova cores, nuclear "pasta" phases such as a triangular lattice of rodlike nuclei and layered structure of slablike nuclei are considered to exist. However, it is still unclear whether or not they are actually formed in collapsing supernova cores. Using ab initio simulations called quantum molecular dynamics, here we solve this problem by demonstrating that a lattice of rodlike nuclei is formed from a bcc lattice by compression. We also find that, in the transition process, the system undergoes a zigzag configuration of elongated nuclei, which are formed by a fusion of two original spherical nuclei.
UR - http://www.scopus.com/inward/record.url?scp=70349108024&partnerID=8YFLogxK
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U2 - 10.1103/PhysRevLett.103.121101
DO - 10.1103/PhysRevLett.103.121101
M3 - Article
VL - 103
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 12
M1 - 121101
ER -