Time-dependent generator coordinate method for many-particle tunneling

N. Hasegawa, K. Hagino, Y. Tanimura

Research output: Contribution to journalArticlepeer-review

Abstract

It has been known that the time-dependent Hartree-Fock (TDHF) method, or the time-dependent density functional theory (TDDFT), fails to describe many-body quantum tunneling. We overcome this problem by superposing a few time-dependent Slater determinants with the time-dependent generator coordinate method (TDGCM). We apply this method to scattering of two α particles in one dimension, and demonstrate that the TDGCM method yields a finite tunneling probability even at energies below the Coulomb barrier, at which the tunneling probability is exactly zero in the TDHF. This is the first case in which a many-particle tunneling is simulated with a microscopic real-time approach.

Original languageEnglish
Article number135693
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume808
DOIs
Publication statusPublished - 2020 Sep 10

Keywords

  • Density functional theory
  • Fission
  • Fusion
  • Nuclear reactions
  • Quantum tunneling

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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