Time-dependent generator coordinate method for many-particle tunneling

Hasegawa, N., 萩野, 浩一, Tanimura, Y.

説明

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.

収録刊行物

Physics Letters B

Physics Letters B 808 2020-09-10

Elsevier BV

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詳細情報詳細情報について

CRID: 1050848249893658752

NII論文ID: 120006878514

ISSN: 03702693; 18732445

HANDLE: 2433/253921

本文言語コード: en

資料種別: journal article

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