5,065 research outputs found
A thermodynamically consistent quasi-particle model without density-dependent infinity of the vacuum zero point energy
In this paper, we generalize the improved quasi-particle model proposed in J.
Cao et al., [ Phys. Lett. B {\bf711}, 65 (2012)] from finite temperature and
zero chemical potential to the case of finite chemical potential and zero
temperature, and calculate the equation of state (EOS) for (2+1) flavor Quantum
Chromodynamics (QCD) at zero temperature and high density. We first calculate
the partition function at finite temperature and chemical potential, then go to
the limit and obtain the equation of state (EOS) for cold and dense QCD,
which is important for the study of neutron stars. Furthermore, we use this EOS
to calculate the quark-number density, the energy density, the quark-number
susceptibility and the speed of sound at zero temperature and finite chemical
potential and compare our results with the corresponding ones in the existing
literature
Asymptotic in a class of network models with an increasing sub-Gamma degree sequence
For the differential privacy under the sub-Gamma noise, we derive the
asymptotic properties of a class of network models with binary values with
general link function. In this paper, we release the degree sequences of the
binary networks under a general noisy mechanism with the discrete Laplace
mechanism as a special case. We establish the asymptotic result including both
consistency and asymptotically normality of the parameter estimator when the
number of parameters goes to infinity in a class of network models. Simulations
and a real data example are provided to illustrate asymptotic results.Comment: arXiv admin note: text overlap with arXiv:2002.12733 by other author
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