学術雑誌論文 Polyakov loop fluctuations in the Dirac eigenmode expansion

Doi, Takahiro M.  ,  Redlich, Krzysztof  ,  Sasaki, Chihiro  ,  Suganuma, Hideo

92 ( 9 ) 2015-11-03 , American Physical Society
ISSN:1550-7998
NII書誌ID(NCID):AA00773624
内容記述
We investigate correlations of the Polyakov loop fluctuations with eigenmodes of the lattice Dirac operator. Their analytic relations are derived on the temporally odd-number size lattice with the normal nontwisted periodic boundary condition for the link variables. We find that the low-lying Dirac modes yield negligible contributions to the Polyakov loop fluctuations. This property is confirmed to be valid in confined and deconfined phases by numerical simulations in SU(3) quenched QCD. These results indicate that there is no direct, one-to-one correspondence between confinement and chiral symmetry breaking in QCD in the context of different properties of the Polyakov loop fluctuation ratios.
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http://repository.kulib.kyoto-u.ac.jp/dspace/bitstream/2433/200847/1/PhysRevD.92.094004.pdf

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