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The objective of this work is to define the parameters of the three-term equation of state for uranium and plutonium, appropriate for conditions in which these materials are subjected to strong shock compressions, as in cylindrical and…

Materials Science · Physics 2015-10-23 Dalton Ellery Girão Barroso

The equation of state for dense fluids has been derived within the framework of the Sutherland and Katz potential models. The equation quantitatively agrees with experimental data on the isothermal compression of water under extrapolation…

Chemical Physics · Physics 2012-03-15 V. Yu. Bardik , D. Nerukh , E. V. Pavlov , I. V. Zhyganiuk

We develop a deep variational free energy framework to compute the equation of state of hydrogen in the warm dense matter region. This method parameterizes the variational density matrix of hydrogen nuclei and electrons at finite…

Strongly Correlated Electrons · Physics 2026-01-26 Zihang Li , Hao Xie , Xinyang Dong , Lei Wang

We present a description of the equation of state of strongly interacting matter within a quasi-particle model. The model is adjusted to lattice QCD data near the deconfinement temperature $T_c$. We compare in detail the excess pressure at…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. Bluhm , B. Kampfer , G. Soff

We use a two-fluid model combining the quantum Green's function technique for the electrons and a classical HNC description for the ions to calculate the high-density equation of state of hydrogen. This approach allows us to describe fully…

Plasma Physics · Physics 2011-08-25 J. Vorberger , D. O. Gericke , W. -D. Kraeft

Nuclear collisions can compress nuclear matter to densities achieved within neutron stars and within core-collapse supernovae. These dense states of matter exist momentarily before expanding. We analyzed the flow of matter to extract…

Nuclear Theory · Physics 2009-11-07 P. Danielewicz , R. Lacey , W. G. Lynch

The QCD equation of state at finite temperature and densities of conserved charges is considered in the framework of a Hagedorn bag-like model, incorporating both the finite sizes of hadrons as well as their exponential mass spectrum.…

Nuclear Theory · Physics 2019-11-18 Volodymyr Vovchenko , Mark I. Gorenstein , Carsten Greiner , Horst Stoecker

Using density functional theory molecular dynamics simulations, we predict shock Hugoniot curves of precompressed methane up to 75000 K for initial densities ranging from 0.35 to 0.70 g/cc. At 4000 K, we observe the transformation into a…

Materials Science · Physics 2015-06-05 Benjamin L. Sherman , Hugh F. Wilson , Dayanthie Weeraratne , Burkhard Militzer

We establish the ultimate limits to the compression of sequences of identically prepared qubits. The limits are determined by Holevo's information quantity and are attained through use of the optimal universal cloning machine, which finds…

Quantum Physics · Physics 2016-12-02 Yuxiang Yang , Giulio Chiribella , Masahito Hayashi

We extend the data compression theorem to the case of ergodic quantum information sources. Moreover, we provide an asymptotically optimal compression scheme which is based on the concept of high probability subspaces. The rate of this…

Quantum Physics · Physics 2007-05-23 Igor Bjelakovic , Arleta Szkola

The proposed earlier relativistic mean-field model with hadron masses and coupling constants depending on the $\sigma$-meson field is generalized to finite temperatures. Within this approach we simulate the in-medium behavior of the hadron…

Nuclear Theory · Physics 2008-11-26 A. S. Khvorostukhin , V. D. Toneev , D. N. Voskresensky

We provide an equation of state for high density supernova matter by applying a momentum-dependent effective interaction. We focus on the study of the equation of state of high-density and high-temperature nuclear matter containing leptons…

Nuclear Theory · Physics 2009-09-22 Ch. C. Moustakidis

This thesis addresses problems in the field of quantum information theory. The first part of the thesis is opened with concrete definitions of general quantum source models and their compression, and each subsequent chapter addresses the…

Quantum Physics · Physics 2020-12-29 Zahra Baghali Khanian

The equation of state for a two-dimensional hard-sphere gas is difficult to calculate by usual methods. In this paper we develop an approach for calculating the equation of state of hard-sphere gases, both for two- and three-dimensional…

Statistical Mechanics · Physics 2009-11-11 Wu-Sheng Dai , Mi Xie

We investigate via quantum molecular-dynamics simulations the thermophysical properties of shocked liquid ammonia up to the pressure 1.3 TPa and temperature 120000 K. The principal Hugoniot is predicted from wide-range equation of state,…

Materials Science · Physics 2015-06-16 Dafang Li , Ping Zhang , Jun Yan

A Lorentz covariant kinetic equation for bound states and their constituents is presented and solved exactly in closed form. It describes in a unified way dynamical formation and dissociation of states such as quarkonia and (anti)-deuterons…

Nuclear Theory · Physics 2007-05-23 Alberto Polleri

In this paper, based on the effective intermolecular potential with well separated density and configuration contributions and the definition of the isothermal bulk modulus, we derive two similar equations of state dedicated to describe…

Soft Condensed Matter · Physics 2015-07-06 Andrzej Grzybowski , Kajetan Koperwas , Marian Paluch

We provide a rate distortion interpretation of the problem of quantum data compression of ensembles of mixed states with commuting density operators. There are two versions of this problem. In the visible case the sequence of states is…

Quantum Physics · Physics 2007-05-23 Gerhard Kramer , Serap A. Savari

This letter examines the consequences of a recently proposed modification of the postulate of equal {\it a priori} probability in quantum statistical mechanics. This modification, called the {\it quantum microcanonical postulate} (QMP),…

Quantum Physics · Physics 2007-05-23 Carl M Bender , Dorje C Brody , Daniel W Hook

We present a four-dimensional equation of state for strongly interacting matter at finite temperature and conserved charge densities, constructed using a deep neural network. It is designed for direct use in hybrid models of relativistic…

High Energy Physics - Phenomenology · Physics 2026-05-22 Musfer Adzhymambetov