Found 1152 results, showing the newest relevant preprints. Sort by relevancy only.Update me on new preprints

Nonsingular bouncing cosmology from general relativity

A possibly more realistic model has an equation-of-state parameter which is different before and after the bounce. Expand abstract.
234 days ago
4/10 relevant
arXiv

The Chaplygin gas as a model for modified teleparallel gravity?

This paper explores the possibility of treating the exotic Chaplygin-gas (CG) fluid model as some manifestation of an $f(T)$ gravitation. Expand abstract.
234 days ago
5/10 relevant
arXiv

Nuclear matter properties at finite temperatures from effective interactions

In the mean-field approximation, we evaluate the equation of state and the single-nucleon potential for nuclear matter at finite temperatures and compare them to those from the SCGF approach. Expand abstract.
235 days ago
4/10 relevant
arXiv

Revisiting equation of state for white dwarfs within finite temperature quantum field theory

After reviewing the existing literature, here we employ the techniques of finite temperature relativistic quantum field theory to compute the equation of state of degenerate matter in the white dwarfs. Expand abstract.
237 days ago
7/10 relevant
arXiv

Two-flavor chiral perturbation theory at nonzero isospin: Pion condensation at zero temperature

In this paper, we calculate the equation of state of two-flavor finite isospin chiral perturbation theory at next-to-leading order in the pion-condensed phase at zero temperature. Expand abstract.
248 days ago
7/10 relevant
arXiv

Implications of the mass $M=2.17^{+0.11}_{-0.10}$M$_\odot$ of PSR~J0740+6620 on the Equation of State of Super-Dense Neutron-Rich Nuclear Matter

We study implications of the very recently reported mass $M=2.17^{+0.11}_{-0.10}$M$_\odot$ of PSR~J0740+6620 on the Equation of State (EOS) of super-dense neutron-rich nuclear matter with respect to existing constraints on the EOS based on the mass $M=2.01\pm 0.04$M$_\odot$ of PSR~J0348+0432, the maximum tidal deformability of GW170817 and earlier results... Expand abstract.
256 days ago
4/10 relevant
arXiv

Superconductivity and Equation of State of Distorted fcc-Lanthanum above Megabar Pressures

Le Bail refinement of experimental XRD patterns indicated that above 130 GPa orthorhombically distorted fcc-La(Fm3m-Fmmm) phase emerges with the fitted parameters of 3rd order Birch-Murnaghan equation of state: V(100)= 16.48(7) A^3, B(100)=208(26) GPa and B(100)'=9(1) in the range of 100-160 GPa. Expand abstract.
256 days ago
7/10 relevant
arXiv

Gravitational Merging as a Possible Source for the Cosmological Accelerating

Gravitational merging (or clustering) of cosmic objects is regarded as a possible source of the extra-acceleration of the universe at large scale. Expand abstract.
256 days ago
4/10 relevant
arXiv

Burst particle creation in gravitational collapse to a horizonless compact object

Second, we introduce two different collapse dynamics to an ultracompact object and specify the corresponding matter equations of state. Expand abstract.
256 days ago
7/10 relevant
arXiv

Fourier-series expansion of the dark-energy equation of state

The dark energy component of the universe still remains as a mystery, however, several papers based on observational data have shown that its equation of state may have an oscillatory behaviour. Expand abstract.
256 days ago
6/10 relevant
arXiv