Conveners
Quark Matter in Astrophysics
- Bikash Sinha (Variable Energy Cyclotron Centre, Kolkata (IN))
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Atsushi Nakamura (RCNP, Osaka Univ)30/09/2015, 09:00Quark Matter in AstrophysicsContributed talkLattice QCD is believed to have limited power for baryon rich QCD matter because of the notorious sign problem. There have been several approaches to circumvent the problem, such as the multi-parameter reweighting method and the pure imaginary chemical potential approach, which can not provide us information beyond $\mu/T=1$ where $\mu$ is the quark baryon chemical potential and $T$ is...Go to contribution page
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Eduardo Fraga (Universidade Federal do Rio de Janeiro)30/09/2015, 09:20Quark Matter in AstrophysicsContributed talkIn recent years, there have been several successful attempts to constrain the equation of state of neutron star matter using input from low-energy nuclear physics and observational data. We demonstrate that significant further restrictions can be placed by additionally requiring the pressure to approach that of deconfined quark matter at high densities. Remarkably, the new constraints turn out...Go to contribution page
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Kota Masuda (The Univ. of Tokyo / RIKEN)30/09/2015, 09:40Quark Matter in AstrophysicsContributed talkRecent observations of 2-solar-mass neutron stars (NSs) give us the problem, ''to be or not to be" for the exotic components such as deconfined quarks in dense matter of NS cores. This is because the first-order phase transition to exotic matter leads to a softening of the equation of state (EOS) so that 2-solar-mass NSs cannot be sustained. In our previous works [1,2], we have constructed...Go to contribution page
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Toru Kojo (University of Illinois, Urbana-Champaign)30/09/2015, 10:00Quark Matter in AstrophysicsContributed talkWe construct an equation of state for massive neutron stars based on QCD phenomenology, with special attention to the behavior at density larger than twice of saturation density. Our primary purpose is to delineate the relevant ingredients of equations of state that simultaneously have the required stiffness and satisfy constraints from thermodynamics and causality. We construct the equations...Go to contribution page