Results 11 to 20 of about 4,107,153 (300)
Inverse Heat Conduction and Heat Exchangers, 2020 An equation of state (EOS) is a thermodynamic expression that relates pressure (P), temperature (T), and volume (V). This equation is used to describe the state of reservoir fluids at given conditions. The cubic equations of state (CEOS) such as Van der Waals, Redlich-Kwong, Soave, and Peng-Robinson are simple models that have been widely used in the ...
E. M. Mansour
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Probing the equation of state of the early Universe with pulsar timing arrays [PDF]
Journal of Cosmology and Astroparticle Physics, 2023 The recently released data by pulsar timing array (PTA) collaborations have amassed substantial evidence corroborating the existence of a stochastic signal consistent with a gravitational-wave background at frequencies around the nanohertz regime.
Lang Liu, Zu-Cheng Chen, Q. Huang
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The state of the dark energy equation of state circa 2023 [PDF]
Journal of Cosmology and Astroparticle Physics, 2023 We critically examine the state of current constraints on the dark energy (DE) equation of state (EoS) w. Our study is motivated by the observation that, while broadly consistent with the cosmological constant value w = -1, several independent probes ...
Luis A. Escamilla +4 more
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Simultaneously probing the sound speed and equation of state of the early Universe with pulsar timing arrays [PDF]
Journal of Cosmology and Astroparticle Physics, 2023 Recently, several major pulsar timing array (PTA) collaborations have assembled strong evidence for the existence of a gravitational-wave background at frequencies around the nanohertz regime.
Lang Liu, You Wu, Zu-Cheng Chen
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Bayesian uncertainty quantification of perturbative QCD input to the neutron-star equation of state [PDF]
Journal of High Energy Physics, 2023 The equation of state of neutron-star cores can be constrained by requiring a consistent connection to the perturbative Quantum Chromodynamics (QCD) calculations at high densities.
Tyler Gorda +3 more
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Neural network reconstruction of the dense matter equation of state from neutron star observables [PDF]
Journal of Cosmology and Astroparticle Physics, 2022 The Equation of State (EoS) of strongly interacting cold and hot ultra-dense QCD matter remains a major challenge in the field of nuclear astrophysics. With the advancements in measurements of neutron star masses, radii, and tidal deformabilities, from ...
Shriya Soma +4 more
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Equation of state and speed of sound of isospin-asymmetric QCD on the lattice [PDF]
Journal of High Energy Physics, 2022 We determine the QCD equation of state at nonzero temperature in the presence of an isospin asymmetry between the light quark chemical potentials on the lattice.
B. Brandt, F. Cuteri, G. Endrődi
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Equation of state for hot hyperonic neutron star matter [PDF]
Monthly notices of the Royal Astronomical Society, 2022 The FSU2H equation of state model, originally developed to describe cold neutron star matter with hyperonic cores, is extended to finite temperature.
Hristijan Kochankovski +2 more
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Equation of state of hard-disk fluids under single-file confinement. [PDF]
Journal of Chemical Physics, 2022 The exact transfer-matrix solution for the longitudinal equilibrium properties of the single-file hard-disk fluid is used to study the limiting low- and high-pressure behaviors analytically as functions of the pore width.
Ana M. Montero, Andrés Santos
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Lattice Study of the Equation of State of a Rotating Gluon Plasma
JETP Letters : Journal of Experimental And Theoretical Physics Letters, 2023 The effect of uniform rotation on the equation of state of gluodynamics has been studied in lattice simulation. To this end, the system has been considered in the corotating reference frame, where the rotation can be modeled as an external gravitational ...
V. Braguta +4 more
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