Ising Analogue to Compact-Star Matter

Journal Article · Fri Mar 30 00:00:00 EDT 2007 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.98.131102· OSTI ID:20951173

Napolitani, P ^[1]; Chomaz, Ph; Hasnaoui, K H. O. ^[2]; Gulminelli, F ^[3]

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1. GANIL (DSM-CEA/IN2P3-CNRS), Boulevard H. Becquerel, F-14076 Caen cedex (France) and LPC - IN2P3-CNRS/Ensicaen et Universite, F-14076 Caen cedex (France)
2. GANIL (DSM-CEA/IN2P3-CNRS), Boulevard H. Becquerel, F-14076 Caen cedex (France)
3. LPC - IN2P3-CNRS/Ensicaen et Universite, F-14076 Caen cedex (France)

By constructing an Ising analogue of compact-star matter at subsaturation density we explored the effect of Coulomb frustration on the nuclear liquid-gas phase transition. Our conclusion is twofold. First, the range of temperatures where inhomogeneous phases form expands with increasing Coulomb-field strength. Second, within the approximation of uniform electron distribution, the limiting point upon which the phase-coexistence region ends does not exhibit any critical behavior. Possible astrophysics consequences and thermodynamical connections are discussed.

• OSTI ID: 20951173
• Journal Information: Physical Review Letters, Vol. 98, Issue 13; Other Information: DOI: 10.1103/PhysRevLett.98.131102; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
36 MATERIALS SCIENCE
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
APPROXIMATIONS
ASTROPHYSICS
COULOMB FIELD
ELECTRONS
ISING MODEL
PHASE TRANSFORMATIONS
STARS