Can cold quark matter be solid?

Abstract

The state of cold quark matter really challenges both astrophysicists and particle physicists, even many-body physicists. It is conventionally suggested that BCS-like color superconductivity occurs in cold quark matter; however, other scenarios with a ground state rather than of Fermi gas could still be possible. It is addressed that quarks are dressed and clustering in cold quark matter at realistic baryon densities of compact stars, since a weakly coupling treatment of the interaction between constituent quarks would not be reliable. Cold quark matter is conjectured to be in a solid state if thermal kinematic energy is much lower than the interaction energy of quark clusters, and such a state could be relevant to different manifestations of pulsar-like compact stars.

Proceedings of IWARA2009 (IJMP D)

References in corpus (13)

• Infrared Properties of QCD from Dyson-Schwinger equations
• A Neutron Star with a Carbon Atmosphere in the Cassiopeia A Supernova Remnant
• Spin-down Measurement of PSR J1852+0040 in Kesteven 79: Central Compact Objects as Anti-Magnetars
• On the running coupling constant in QCD
• Precise Timing of the X-ray Pulsar 1E 1207.4-5209: A Steady Neutron Star Weakly Magnetized at Birth
• A dedicated Chandra ACIS observation of the central compact object in the Cassiopeia A supernova remnant
• 1E 1207.4-5209: a low-mass bare strange star?
• AXPs/SGRs: Magnetars or Quark-stars?
• Formation of Sub-millisecond Pulsars and Possibility of Detection
• The Birth of Quark Stars: Photon-driven Supernovae?
• Pulsar slow glitches in a solid quark star model
• X-Ray Flares of Gamma-Ray Bursts: Quakes of Solid Quark Stars?
• Torsional nodeless vibrations of quaking neutron star restored by combined forces of shear elastic and magnetic field stresses

Cited by in corpus (14)

• Thermodynamic consistency, quark mass scaling, and properties of strange matter
• Two types of glitches in a solid quark star model
• Strange matter and strange stars in a thermodynamically self-consistent perturbation model with running coupling and running strange quark mass
• A note on the discovery of a 2M_\odot pulsar
• H-cluster stars
• The magnetospheric activity of bare strange quark stars
• A solution of the puzzling symbiotic X-ray system 4U 1700+24
• Gravitational Microlensing by Neutron Stars and Radio Pulsars: Event Rates, Timescale Distributions, and Mass Measurements
• Strangelets at finite temperature in an equivparticle model
• Pulsars: Gigantic Nuclei
• Strange quark matter and proto-strange stars in an equivaparticle model
• Strangelets formation in high energy heavy-ion collisions
• Quark-cluster Stars: the structure
• Quark-cluster Stars: hints from the surface