Ferromagnetic properties of quark matter a microscopic origin of magnetic field in compact stars T. Tatsumi Department of Physics, Kyoto University Introduction and motivation .Relativistic Fermi-liquid theory and magnetic susceptibility I.Screening effects for gluons .Magnetic properties at T=0 Finite temperature effects and Non-Fermi-liquid behavior .Summary and concluding remarks T.T., Proc. of EXOCT07 (arXiv:0711.3348) T.T. and K. Sato., Phys. Lett., B663 (2008) 322. K. Sato and T.T. , Prog. Theor. Phys. Suppl. 174 (2008) 177. T.T. and K. Sato, Phys. Lett. B672(2009) 132. K. Sato and T.T., Nucl. Phys. A (2009) in pres ( arXiv: 0812.1347 ) 30 th anniversary of March 5, 1979 Gamma-ray burst event
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Ferromagnetic properties of quark matter a microscopic origin of magnetic field in compact stars T. Tatsumi Department of Physics, Kyoto University I.Introduction.
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Ferromagnetic properties of quark matter
a microscopic origin of magnetic field in compact stars
T. Tatsumi Department of Physics, Kyoto University
I. Introduction and motivationII. Relativistic Fermi-liquid theory and magnetic susceptibilityIII. Screening effects for gluonsIV. Magnetic properties at T=0V. Finite temperature effects and Non-Fermi-liquid behaviorVI. Summary and concluding remarks
T.T., Proc. of EXOCT07 (arXiv:0711.3348)T.T. and K. Sato., Phys. Lett., B663 (2008) 322. K. Sato and T.T. , Prog. Theor. Phys. Suppl. 174 (2008) 177.
T.T. and K. Sato, Phys. Lett. B672(2009) 132.K. Sato and T.T., Nucl. Phys. A (2009) in press.( arXiv: 0812.1347 )
30 th anniversary of March 5, 1979 Gamma-ray burst event
Origin:(i) Fossil field(ii) Dynamo scenario (crust)(iii)Microscopic origin (core)
(II) Strong magnetic field in compact stars
I. Introduction and motivation
(I) Phase diagram of QCD
In density-temperature plane Hadron
Quark-Gluon Plasma
T
BFerromagnetism ?
Phase diagram of QCD
Compact stars
~150MeV
CSC
Low temperature and moderate densities Magnetars
No possibility for nuclear matter
For recent references,I.Bombaci et al, PLB 632(2006)638G.H. Bordbar and M. Bigdeli, PRC76 (2007)035803
Spontaneous magnetization of quark matter
Is there ferromagnetic instability in QCD?
It is a long-standing problem since the first discoveryof pulsars.
There have been done many calculations of nuclear matter.