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
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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
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发表时间:
2019-01
影响因子:
3.1
通讯作者:
Ikeda Kiyomi
中科院分区:
文献类型:
--
作者:
Myo Takayuki;Takemoto Hiroki;Lyu Mengjiao;Wan Niu;Xu Chang;Toki Hiroshi;Horiuchi Hisashi;Yamada Taiichi;Ikeda Kiyomi
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.
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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
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
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
影响因子:
8.6
作者:
R. Wiringa;S. Pieper
通讯作者:
R. Wiringa;S. Pieper