Dual fermion condensate and phase transition in QED3
Dual fermion condensate and phase transition in QED3
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DOI：
10.1007/s11433-013-5084-7
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发表时间：
2013-05
期刊：
影响因子：
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通讯作者：
H. Feng;P. Yin;Wei-Min Sun;H. Zong
中科院分区：
文献类型：
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作者：
H. Feng;P. Yin;Wei-Min Sun;H. Zong
本文研究了QED 3中双费米子凝聚在温度变化下的行为。利用费米子传播子的Dyson-Schwinger方程，提取了对偶费米子凝聚，并将其行为与普通手征费米子凝聚及手征磁化率进行了比较。结果表明，双费米子凝聚不能作为QED 3中禁闭-解除禁闭相变的序参量。此外，在目前的工作中观察到的手征相变点附近的双费米子凝聚的变化，因此必须解释为单独诱导的手征过渡。
In this paper, we investigate the behaviors of dual fermion condensate in QED3under variation of temperature. By means of Dyson-Schwinger equation for the fermion propagator, we extract the dual fermion condensate and compare its behavior with the ordinary chiral fermion condensate and the chiral susceptibility. It is found that the dual fermion condensate cannot be regarded as the order parameter for the confinement-deconfinement phase transition in QED3. Furthermore, the change of the dual fermion condensate around the chiral phase transition point observed in the present work must therefore be interpreted as solely induced by the chiral transition.