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Behaviour of the topological susceptibility in two colour QCD across the finite density transition

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 نشر من قبل Bartolome Alles
 تاريخ النشر 2006
  مجال البحث
والبحث باللغة English
 تأليف B. Alles




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The behaviour of the topological susceptibility chi in QCD with two colours and 8 flavours of quarks is studied at nonzero temperature on the lattice across the finite density transition. It is shown that the signal of chi drops abruptly at a critical chemical potential mu_c, much as it happens at the finite temperature and zero density transition. The Polyakov loop and the chiral condensate undergo their transitions at the same critical value mu_c. At a value mu_s of the chemical potential, called saturation point, which in our case satisfies mu_s > mu_c, Pauli blocking supervenes and consequently the theory becomes quenched.



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