scholarly journals Finite temperature effects on anisotropic pressure and equation of state of dense neutron matter in an ultrastrong magnetic field

2011 ◽  
Vol 84 (6) ◽  
Author(s):  
A. A. Isayev ◽  
J. Yang
Keyword(s):  
Magnetic Field ◽  
Equation Of State ◽  
Finite Temperature ◽  
Temperature Effects ◽  
Neutron Matter ◽  
Anisotropic Pressure

Equation of state for pion-condensed neutron matter at finite temperature

1978 ◽  
Vol 78 (5) ◽  
pp. 547-551 ◽  
Author(s):  
H. Toki ◽  
Y. Futami ◽  
W. Weise
Keyword(s):  
Equation Of State ◽  
Finite Temperature ◽  
Neutron Matter

scholarly journals Temperature effects on the neutron matter equation of state obtained from chiral effective field theory

2020 ◽  
Vol 35 (19) ◽  
pp. 2050156
Author(s):  
Francesca Sammarruca ◽  
R. Machleidt ◽  
R. Millerson
Keyword(s):  
Field Theory ◽  
Equation Of State ◽  
Effective Field Theory ◽  
Temperature Effects ◽  
Chemical Potential ◽  
Effective Field ◽  
Neutron Matter ◽  
Thermodynamic Quantities ◽  
Chiral Effective Field Theory ◽  
Nucleon Force

Temperature effects on the neutron matter equation of state (EoS) are investigated in the framework of chiral effective field theory. Recently, state-of-the-art chiral two-nucleon forces are applied from third to fifth order in the chiral expansion together with chiral three-nucleon forces, allowing for a determination of the truncation error of the theoretical predictions. The thermodynamic quantities considered include the chemical potential, the internal energy, the entropy, and the free energy. In general, good order-by-order convergence of all predictions is observed. As to be expected, temperature effects are largest at low density. The temperature dependence of the chiral three-nucleon force turns out to be weak.

scholarly journals Study of relativistic magnetized outflows with relativistic equation of state

2019 ◽  
Vol 488 (4) ◽  
pp. 5713-5727
Author(s):  
Kuldeep Singh ◽  
Indranil Chattopadhyay
Keyword(s):  
Magnetic Field ◽  
Angular Momentum ◽  
Equation Of State ◽  
Polar Angle ◽  
Relativistic Equation ◽  
Azimuthal Velocity ◽  
Astrophysical Jets ◽  
Composition Parameter ◽  
Field Lines ◽  
Flow Experiences

ABSTRACT We study relativistic magnetized outflows using relativistic equation of state having variable adiabatic index (Γ) and composition parameter (ξ). We study the outflow in special relativistic magnetohydrodynamic regime, from sub-Alfvénic to super-fast domain. We showed that, after the solution crosses the fast point, magnetic field collimates the flow and may form a collimation-shock due to magnetic field pinching/squeezing. Such fast, collimated outflows may be considered as astrophysical jets. Depending on parameters, the terminal Lorentz factors of an electron–proton outflow can comfortably exceed few tens. We showed that due to the transfer of angular momentum from the field to the matter, the azimuthal velocity of the outflow may flip sign. We also study the effect of composition (ξ) on such magnetized outflows. We showed that relativistic outflows are affected by the location of the Alfvén point, the polar angle at the Alfvén point and also the angle subtended by the field lines with the equatorial plane, but also on the composition of the flow. The pair dominated flow experiences impressive acceleration and is hotter than electron–proton flow.

Ferromagnetism in neutron matter and its implication for the neutron star equation of state

2011 ◽  
Author(s):  
J. P. W. Diener ◽  
F. G. Scholtz ◽  
Ersin Göğüş ◽  
Ünal Ertan ◽  
Tomaso Belloni
Keyword(s):  
Neutron Star ◽  
Equation Of State ◽  
Neutron Matter

scholarly journals Finite-temperature effects on interacting bosonic one-dimensional systems in disordered lattices

2016 ◽  
Vol 93 (3) ◽  
Author(s):  
Lorenzo Gori ◽  
Thomas Barthel ◽  
Avinash Kumar ◽  
Eleonora Lucioni ◽  
Luca Tanzi ◽  
...  
Keyword(s):  
Finite Temperature ◽  
Temperature Effects ◽  
One Dimensional
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