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Critical behavior of QED3 at finite temperature and density

  • Hong-tao FengEmail author
  • Bin Wang
  • Wei-min Sun
  • Hong-shi Zong
Regular Article - Theoretical Physics

Abstract

Within a range of fermion masses and taking into account the influence of the chemical potential on the boson propagator, the dependence of the chiral susceptibility on temperature and chemical potential is investigated to gain insight in the phase transition of QED3. We show that, at high temperature, the system demonstrates a second-order phase transition characteristic in the chiral limit and illustrates a crossover beyond the chiral limit, while in the high density region it exhibits a first-order transition when the fermion mass is small but always reveals a crossover when the fermion mass exceeds a critical value m c .

Keywords

Finite Temperature Fermion Mass Chiral Limit Fermion Propagator Wave Function Renormalization 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

We are grateful to Prof. J.P. Blaizot and Y. Jiang for their useful and enlightening discussions and for thoughtful comments from Dr. L. Chang. This work was funded by the National Natural Science Foundation of China under Contract Nos. 11047005, 11105029, 10935001, and 11075075.

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Copyright information

© Springer-Verlag Berlin Heidelberg and Società Italiana di Fisica 2013

Authors and Affiliations

  • Hong-tao Feng
    • 1
    • 4
    Email author
  • Bin Wang
    • 2
  • Wei-min Sun
    • 2
    • 3
    • 4
  • Hong-shi Zong
    • 2
    • 3
    • 4
  1. 1.Department of PhysicsSoutheast UniversityNanjingChina
  2. 2.Department of PhysicsNanjing UniversityNanjingChina
  3. 3.Joint Center for Particle, Nuclear Physics and CosmologyNanjingChina
  4. 4.State Key Laboratory of Theoretical Physics, Institute of Theoretical PhysicsCASBeijingChina

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