Variational calculation of nuclear matter in a finite particle number approach using the unitary correlation operator and high-momentum pair methods

Variational calculation of nuclear matter in a finite particle number approach using the unitary correlation operator and high-momentum pair methods
复制标题

使用酉相关算子和高动量对方法以有限粒子数方法对核物质进行变分计算

DOI:
10.1103/physrevc.99.024312
复制
发表时间:
2019-01
期刊:
影响因子:
3.1
通讯作者:
Ikeda Kiyomi
Ikeda Kiyomi
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Myo Takayuki;Takemoto Hiroki;Lyu Mengjiao;Wan Niu;Xu Chang;Toki Hiroshi;Horiuchi Hisashi;Yamada Taiichi;Ikeda Kiyomi

文献摘要

参考文献

相似文献

我们提出了一种从核子-核子相互作用描述核物质的新变分方法。我们使用统一相关算子方法(UCOM)来处理中心相关,并进一步包括涉及大相对动量的核子对的两粒子双孔(2p2h)激发,称为“高动量对”(HM)。我们在周期边界条件下描述有限大小、有限粒子数的核物质,并增加2p2h构型,直到得到每粒子总能量的收敛。我们通过将这个“UCOM+HM”框架应用于具有短程斥力的Argonne V4$^\prime$势的对称核和中子物质,证明了它的有效性。在总密度区,UCOM+HM计算得到的核状态方程与Brueckner-Hartree-Fock和辅助场扩散蒙特卡罗等计算结果相当一致。
We propose a new variational method for describing nuclear matter from nucleon-nucleon interaction. We use the unitary correlation operator method (UCOM) for central correlation to treat the short-range repulsion and further include the two-particle two-hole (2p2h) excitations of nucleon pair involving a large relative momentum, which is called 'high-momentum pair'(HM). We describe nuclear matter in finite size with finite particle number on periodic boundary condition and increase the 2p2h configurations until we get the convergence of the total energy per particle. We demonstrate the validity of this 'UCOM+HM' framework by applying it to the symmetric nuclear and neutron matters with the Argonne V4$^\prime$ potential having short-range repulsion. The nuclear equations of state obtained in UCOM+HM are fairly consistent to those of other calculations such as Brueckner-Hartree-Fock and auxiliary field diffusion Monte Carlo in the overall density region.
DOI: 10.1143/ptp.113.763
发表时间: 2004-11
影响因子: --
作者:
T. Myo;K. Katō;K. Ikeda
通讯作者: T. Myo;K. Katō;K. Ikeda
DOI: 10.1140/epja/i2014-14010-5
发表时间: 2013-07
期刊: The European Physical Journal A
影响因子: --
作者:
S. Gandolfi;J. Carlson;S. Reddy;A. Steiner;R. Wiringa
通讯作者: S. Gandolfi;J. Carlson;S. Reddy;A. Steiner;R. Wiringa
DOI: 10.1103/physrevc.79.054005
发表时间: 2009-03
期刊: Physical Review C
影响因子: 3.1
作者:
S. Gandolfi;A. Illarionov;K. Schmidt;F. Pederiva;S. Fantoni
通讯作者: S. Gandolfi;A. Illarionov;K. Schmidt;F. Pederiva;S. Fantoni
DOI: 10.1103/physrevc.84.034315
发表时间: 2011-08
期刊: Physical Review C
影响因子: 3.1
作者:
T. Myo;A. Umeya;H. Toki;K. Ikeda
通讯作者: T. Myo;A. Umeya;H. Toki;K. Ikeda
DOI: 10.1103/physrevlett.89.182501
发表时间: 2002-07
影响因子: 8.6
作者:
R. Wiringa;S. Pieper
通讯作者: R. Wiringa;S. Pieper