Journal
PHYSICAL REVIEW D
Volume 99, Issue 1, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.99.014046
Keywords
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Funding
- CNPq
- FAPERJ
- INCT-FNA [464898/2014-5]
- CAPES [001]
- CAPES (via INCT-FNA) [88881.133995/2016-01, 88887.185090/2018-00]
- FAPESP [2018/07833-1, 2017/05685-2]
- Science AMP
- Technology Facilities Council (STFC)
- STFC [ST/M005046/1] Funding Source: UKRI
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If a first-order phase transition separates nuclear and quark matter at large baryon density, an interface between these two phases has a nonzero surface tension. WC calculate this surface tension within a nucleon-meson model for domain walls and bubbles. Various methods and approximations are discussed and compared, including a numerical evaluation of the spatial profile of the interface. We also compute the surface tension at the other first-order phase transitions of the model: the nuclear liquid-gas transition and, in the parameter regime where it exists, the direct transition from the vacuum to the (approximately) chirally symmetric phase. identifying the chirally symmetric phase with quark matter-our model does not contain explicit quark degrees of freedom-we find maximal surface tensions of the vacuum-quark transition Sigma(VQ) similar to 15 MeV/fm(2), relevant for the surface of quark stars, and of the nuclear-quark transition Sigma(NQ) similar to 10 MeV/fm(2), relevant for hybrid stars and for quark matter nucleation in supernovae and neutron star mergers.
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