Formation of Nuclear "Pasta" in Supernovae

Abstract

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.

4 pages, 3 figures, to appear in Phys. Rev. Lett. as an Editors' Suggestion

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Cited by in corpus (63)

• Equations of state for supernovae and compact stars
• Neutron star radii and crusts: uncertainties and unified equations of state
• Symmetry energy of dilute warm nuclear matter
• Unified treatment of sub-saturation stellar matter at zero and finite temperature
• Unified equation of state for neutron stars on a microscopic basis
• Nuclear Pasta Formation
• Astromaterial Science and Nuclear Pasta
• Phases of dense matter in compact stars
• Twist-averaged boundary conditions for nuclear pasta Hartree-Fock calculations
• The Vlasov formalism for extended relativistic mean field models: the crust-core transition and the stellar matter equation of state
• Statistical description of complex nuclear phases in supernovae and proto-neutron stars
• Nuclear Equation of state for Compact Stars and Supernovae
• Nuclear Waffles
• Impact of the neutron star crust on the tidal polarizability
• Nuclear "pasta" structures in low-density nuclear matter and neutron star crust
• The Nuclear Matter Symmetry Energy at $0.03\le \rho /{\rho }_0\le 0.2$
• Unified equations of state for cold non-accreting neutron stars with Brussels-Montreal functionals. II. Pasta phases in semi-classical approximation
• Quantum Nuclear Pasta and Nuclear Symmetry Energy
• Topological characterization of neutron star crusts
• Dependence of fusion on isospin dynamics
• Three dimensional structure of low-density nuclear matter
• The equation of state and symmetry energy of low density nuclear matter
• Impact of the neutron-star deformability on equation of state parameters
• Neutron stars and the dense matter equation of state: from microscopic theory to macroscopic observations
• $\alpha$ particles and the pasta phase
• Sensitivity of the fusion cross section to the density dependence of the symmetry energy
• Transport properties of nuclear pasta phase with quantum molecular dynamics
• Structure and composition of inner crust of neutron stars from Gogny interactions
• Clusterized nuclear matter in the (proto-)neutron star crust and the symmetry energy
• Quantum Simulations of Nuclei and Nuclear Pasta with the Multi-resolution Adaptive Numerical Environment for Scientific Simulations
• The pasta phase and its consequences on neutrino opacities
• Domains and defects in nuclear "pasta"
• Neutron stars: from the inner crust to the core with the (Extended) Nambu-Jona-Lasinio model
• Low density nuclear matter with quantum molecular dynamics : The role of the symmetry energy
• Swallowtail Band Structure of the Superfluid Fermi Gas in an Optical Lattice
• Proton fraction in the inner neutron-star crust
• Curvature effect on nuclear pasta: Is it helpful for gyroid appearance?
• Pasta phases within the QMC model
• Ensemble in-equivalence in supernova matter within a simple model
• Nucleation and cluster formation in low-density nucleonic matter: A mechanism for ternary fission
• Molecular Dynamics for Dense Matter
• Constraints on Skyrme Equations of State from Doubly Magic Nuclei, Ab-Initio Calculations of Low-Density Neutron Matter, and Neutron Stars
• Structure formation during phase transitions in strongly interacting matter
• Shear modulus of the hadron-quark mixed phase
• Effects of periodic potentials on the critical velocity of superfluid Fermi gases in the BCS-BEC crossover
• Nuclear pasta and symmetry energy in the relativistic point-coupling model
• Effect of the Coulomb interaction on the liquid-gas phase transition of nuclear matter
• Neutrino diffusion in the pasta phase matter within the Thomas-Fermi approach
• Nuclear pasta in hot and dense matter and its influence on the equation of state for astrophysical simulations
• Charged Ising Model of Neutron Star Matter
• Towards a quantal dynamical simulation of the neutron-star crust
• Boundary conditions for star matter and other periodic fermionic systems
• Pairing effects in nuclear pasta phase within the relativistic Thomas-Fermi formalism
• A new probe to study symmetry energy at low density by deuteron breakup reaction
• Multiple period states of the superfluid Fermi gas in an optical lattice
• Pygmies, giants, and skins as laboratory constraints on the equation of state of neutron-rich matter
• Simulating pasta phases by molecular dynamics and cold atoms --- Formation in supernovae and superfluid neutrons in neutron stars
• Fully antisymmetrised dynamics for bulk fermion systems
• Characterization of the inner edge of the neutron star crust
• Pygmies, Giants, and Skins
• Inner crust equations of state for CompOSE
• Fine structure of giant resonances: What can be learned
• Towards a novel energy density functional for beyond-mean-field calculations with pairing and deformation