Results 11 to 20 of about 3,208,506 (95)

Probing the QCD Equation of State [PDF]

open access: yes, 2002
We propose a novel quasiparticle interpretation of the equation of state of deconfined QCD at finite temperature. Using appropriate thermal masses, we introduce a phenomenological parametrisation of the onset of confinement in the vicinity of the phase ...
A. Polleri   +18 more
core   +3 more sources

Kinetic equation consistent with the equation of state of nuclear matter [PDF]

open access: yes, 1998
A kinetic equation which combines the quasiparticle drift of Landau's equation with a dissipation governed by a nonlocal and noninstant scattering integral in the spirit of Snider's equation for gases is derived.
Alm   +26 more
core   +2 more sources

Equation of state from lattice QCD [PDF]

open access: yes, 2005
Recent results on the equation of state from lattice QCD are reviewed. The lattice technique and previous results are shortly discussed. New results for physical quark masses and two sets of lattice spacings are presented.
Katz, S. D.
core   +3 more sources

Equation of State in Relativistic Magnetohydrodynamics: variable versus constant adiabatic index [PDF]

open access: yes, 2007
The role of the equation of state for a perfectly conducting, relativistic magnetized fluid is the main subject of this work. The ideal constant $\Gamma$-law equation of state, commonly adopted in a wide range of astrophysical applications, is compared ...
A. Mignone   +50 more
core   +3 more sources

Thermal Equation of State of Tantalum

open access: yes, 2000
We have investigated the thermal equation of state of tantalum from first principles using the Linearized Augmented Plane Wave (LAPW) and pseudopotential methods for pressures up to 300 GPa and temperatures up to 10000 K.
A. Bansil   +35 more
core   +1 more source

Interpolation of equation-of-state data

open access: yes, 2019
Aims. We use Hermite splines to interpolate pressure and its derivatives simultaneously, thereby preserving mathematical relations between the derivatives. The method therefore guarantees that thermodynamic identities are obeyed even between mesh points.
Ayukov, S. V.   +4 more
core   +1 more source

On primordial equation of state transitions

open access: yes, 2016
We revisit the physics of transitions from a general equation of state parameter to the final stage of slow-roll inflation. We show that it is unlikely for the modes comprising the cosmic microwave background to contain imprints from a pre-inflationary ...
Aravind, Aditya   +2 more
core   +1 more source

Equation of State in Numerical Relativistic Hydrodynamics [PDF]

open access: yes, 2006
Relativistic temperature of gas raises the issue of the equation of state (EoS) in relativistic hydrodynamics. We study the EoS for numerical relativistic hydrodynamics, and propose a new EoS that is simple and yet approximates very closely the EoS of ...
Dongsu Ryu   +5 more
core   +3 more sources

Constraining the Inflationary Equation of State

open access: yes, 2011
We explore possible constraints on the inflationary equation state: p=w\rho. While w must be close to -1 for those modes that contribute to the observed power spectrum, for those modes currently out of experimental reach, the constraints on w are much ...
  +14 more
core   +1 more source

From Neutron Star Observables to the Equation of State. II. Bayesian Inference of Equation of State Pressures

open access: yes, 2017
One of the key goals of observing neutron stars is to infer the equation of state (EoS) of the cold, ultradense matter in their interiors. We present here a Bayesian statistical method of inferring the pressures at five fixed densities, from a sample of ...
Psaltis, Dimitrios   +2 more
core   +1 more source

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