Sverker Fredriksson
Luleå University of Technology
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Publication
Featured researches published by Sverker Fredriksson.
Physical Review D | 2005
D. Blaschke; Sverker Fredriksson; H. Grigorian; A.M. Öztas; Fredrik Sandin
The phase diagram of three-flavor quark matter under compact star constraints is investigated within a Nambu--Jona-Lasinio model. Global color and electric charge neutrality is imposed for
EPL | 2002
Jean-Jacques Dugne; Sverker Fredriksson; Johan Hansson
\ensuremath{\beta}
Micron | 1994
Nils Almqvist; Lars Bäckman; Sverker Fredriksson
-equilibrated superconducting quark matter. The constituent quark masses and the diquark condensates are determined self-consistently in the plane of temperature and quark chemical potential. Both strong and intermediate diquark coupling strengths are considered. We show that in both cases, gapless superconducting phases do not occur at temperatures relevant for compact star evolution, i.e., below
Thin Solid Films | 1995
Nils Almqvist; M. Rubel; P. Wienhold; Sverker Fredriksson
T\ensuremath{\sim}50\text{ }\text{ }\mathrm{MeV}
Journal of Nuclear Materials | 1995
Nils Almqvist; M. Rubel; Sverker Fredriksson; B. Emmoth; P. Wienhold; L. Ilyinsky
. The stability and structure of isothermal quark star configurations are evaluated. For intermediate coupling, quark stars are composed of a mixed phase of normal (NQ) and two-flavor superconducting (2SC) quark matter up to a maximum mass of
Nuclear Physics | 2004
D. Blaschke; Sverker Fredriksson; H. Grigorian; A.M. Öztas
1.21\text{ }\text{ }{M}_{\ensuremath{\bigodot}}
arXiv: High Energy Physics - Phenomenology | 2004
Sverker Fredriksson
. At higher central densities, a phase transition to the three-flavor color flavor locked (CFL) phase occurs and the configurations become unstable. For the strong diquark coupling we find stable stars in the 2SC phase, with masses up to
ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels | 2010
Martin Johansson; John Sheridan; Sverker Fredriksson
1.33\text{ }\text{ }{M}_{\ensuremath{\bigodot}}
Astronomy and Astrophysics | 2008
Erik Elfgren; Sverker Fredriksson
. A second family of more compact configurations (twins) with a CFL quark matter core and a 2SC shell is also found to be stable. The twins have masses in the range
arXiv: High Energy Physics - Phenomenology | 2002
Erik Elfgren; G. Azuelos; Gilles Couture; Sverker Fredriksson
1.30\dots{}1.33\text{ }\text{ }{M}_{\ensuremath{\bigodot}}