Lowest order constrained variational calculation of polarized neutron matter at finite temperature

被引：31

作者：

Bordbar, G. H. ^{[1
,3
]}

Bigdeli, M. ^{[2
,3
]}

机构：

[1] Shiraz Univ, Dept Phys, Shiraz 71454, Iran

[2] Zanjan Univ, Dept Phys, Zanjan, Iran

[3] Res Inst Astron & Astrophys Maragha, Maragha, Iran

来源：

PHYSICAL REVIEW C | 2008年 / 78卷 / 05期

关键词：

D O I：

10.1103/PhysRevC.78.054315

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Some properties of polarized neutron matter at finite temperature have been studied using the lowest order constrained variational (LOCV) method with the Argonne V18 (AV18) potential. Our results indicate that a spontaneous transition to the ferromagnetic phase does not occur. Effective mass, free energy, magnetic susceptibility, entropy, and the equation of state of polarized neutron matter at finite temperature are also calculated. A comparison is also made between our results and those of other many-body techniques.

引用

页数：6

共 47 条

[1] Equation of state of nucleon matter and neutron star structure [J].

Akmal, A ;

Pandharipande, VR ;

Ravenhall, DG .

PHYSICAL REVIEW C, 1998, 58 (03) :1804-1828

[2] CALCULATION OF LANDAUS FERMI-LIQUID PARAMETERS IN PURE NEUTRON MATTER [J].

BACKMAN, SO ;

KALLMAN, CG ;

SJOBERG, O .

PHYSICS LETTERS B, 1973, B 43 (04) :263-266

[3] MAGNETIC-PROPERTIES OF STRONGLY ASYMMETRIC NUCLEAR-MATTER IN A DIRAC-HARTREE-FOCK APPROACH [J].

BERNARDOS, P ;

MARCOS, S ;

NIEMBRO, R ;

QUELLE, ML .

PHYSICS LETTERS B, 1995, 356 (2-3) :175-180

[4] Microscopic calculations of spin polarized neutron matter at finite temperature [J].

Bombaci, I ;

Polls, A ;

Ramos, A ;

Rios, A ;

Vidaña, I .

PHYSICS LETTERS B, 2006, 632 (5-6) :638-643

[5] Lowest order constrained variational calculation of polarized nuclear matter with the modern AV18 potential [J].

Bordbar, G. H. ;

Bigdeli, M. .

PHYSICAL REVIEW C, 2007, 76 (03)

[6] Spin polarized asymmetric nuclear matter and neutron star matter within the lowest order constrained variational method [J].

Bordbar, G. H. ;

Bigdeli, M. .

PHYSICAL REVIEW C, 2008, 77 (01)

[7] Polarized neutron matter: A lowest order constrained variational approach [J].

Bordbar, G. H. ;

Bigdeli, M. .

PHYSICAL REVIEW C, 2007, 75 (04)

[8] Lowest order constrained variational calculation for asymmetrical nuclear matter with the new Argonne potential [J].

Bordbar, GH ;

Modarres, M .

PHYSICAL REVIEW C, 1998, 57 (02) :714-721

[9] LOCV calculation of nuclear matter with phenomenological two-nucleon interaction operators [J].

Bordbar, GH ;

Modarres, M .

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 1997, 23 (11) :1631-1646

[10] FERROMAGNETIC TRANSITION IN SUPERDENSE MATTER AND NEUTRON STARS [J].

BROWNELL, DH ;

CALLAWAY, J .

NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA B-GENERAL PHYSICS RELATIVITY ASTRONOMY AND MATHEMATICAL PHYSICS AND METHODS, 1969, 60 (01) :169-&

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