dorsal/arxiv
View SchemaDynamics of few-body states in a medium
| Authors | M. Beyer, S. Mattiello, S. Strauss, T. Frederico, H. J. Weber, P. Schuck, S. A. Sofianos |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0410008 |
| URL | https://arxiv.org/abs/nucl-th/0410008 |
| DOI | 10.1063/1.1932976 |
Abstract
Strongly interacting matter such as nuclear or quark matter leads to few-body bound states and correlations of the constituents. As a consequence quantum chromodynamics has a rich phase structure with spontaneous symmetry breaking, superconductivity, condensates of different kinds. All this appears in many astrophysical scenarios. Among them is the formation of hadrns during the early stage of the Universe, the structure of a neutron star, the formation of nuclei during a supernova explosion. Some of these extreme conditions can be simulated in heavy ion colliders. To treat such a hot and dense system we use the Green function formalism of many-body theory. It turns out that a systematic Dyson expansion of the Green functions leads to modified few-body equations that are capable to describe phase transitions, condensates, cluster formation and more. These equations include self energy corrections and Pauli blocking. We apply this method to nonrelativistic and relativistic matter. The latter one is treated on the light front. Because of the medium and the inevitable truncation of space, the few-body dynamics and states depend on the thermodynamic parameters of the medium.
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"abstract": "Strongly interacting matter such as nuclear or quark matter leads to few-body\nbound states and correlations of the constituents. As a consequence quantum\nchromodynamics has a rich phase structure with spontaneous symmetry breaking,\nsuperconductivity, condensates of different kinds. All this appears in many\nastrophysical scenarios. Among them is the formation of hadrns during the early\nstage of the Universe, the structure of a neutron star, the formation of nuclei\nduring a supernova explosion. Some of these extreme conditions can be simulated\nin heavy ion colliders. To treat such a hot and dense system we use the Green\nfunction formalism of many-body theory. It turns out that a systematic Dyson\nexpansion of the Green functions leads to modified few-body equations that are\ncapable to describe phase transitions, condensates, cluster formation and more.\nThese equations include self energy corrections and Pauli blocking. We apply\nthis method to nonrelativistic and relativistic matter. The latter one is\ntreated on the light front. Because of the medium and the inevitable truncation\nof space, the few-body dynamics and states depend on the thermodynamic\nparameters of the medium.",
"arxiv_id": "nucl-th/0410008",
"authors": [
"M. Beyer",
"S. Mattiello",
"S. Strauss",
"T. Frederico",
"H. J. Weber",
"P. Schuck",
"S. A. Sofianos"
],
"categories": [
"nucl-th"
],
"doi": "10.1063/1.1932976",
"title": "Dynamics of few-body states in a medium",
"url": "https://arxiv.org/abs/nucl-th/0410008"
},
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