# Influence of finite chemical potential on the critical number of fermion flavors in QED{sub 3}

## Abstract

Based on the rainbow approximation of Dyson-Schwinger equation and the assumption that the inverse dressed fermion propagator at finite chemical potential is analytic in the neighborhood of {mu}=0, A new method for calculating the dressed fermion propagator at finite chemical potential in QED{sub 3} is developed. From this the effects of the chemical potential on the critical number of the fermion flavors is evaluated.

- Authors:

- Department of Physics, Nanjing University, Nanjing 210093 (China)
- Joint Center for Particle, Nuclear Physics and Cosmology, Nanjing 210093 (China)
- (China)
- CCAST (World Laboratory), P.O. Box 8730, Beijing 100080 (China)

- Publication Date:

- OSTI Identifier:
- 20774646

- Resource Type:
- Journal Article

- Resource Relation:
- Journal Name: Physical Review. D, Particles Fields; Journal Volume: 73; Journal Issue: 1; Other Information: DOI: 10.1103/PhysRevD.73.016004; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)

- Country of Publication:
- United States

- Language:
- English

- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; APPROXIMATIONS; FERMIONS; FLAVOR MODEL; POTENTIALS; PROPAGATOR; QUANTUM ELECTRODYNAMICS; SCHWINGER FUNCTIONAL EQUATIONS; SCHWINGER SOURCE THEORY; SYMMETRY BREAKING

### Citation Formats

```
Feng Hongtao, Hou Fengyao, He Xiang, Sun Weimin, Department of Physics, Nanjing University, Nanjing 210093, Zong Hongshi, Department of Physics, Nanjing University, Nanjing 210093, and Joint Center for Particle, Nuclear Physics and Cosmology, Nanjing 210093.
```*Influence of finite chemical potential on the critical number of fermion flavors in QED{sub 3}*. United States: N. p., 2006.
Web. doi:10.1103/PhysRevD.73.016004.

```
Feng Hongtao, Hou Fengyao, He Xiang, Sun Weimin, Department of Physics, Nanjing University, Nanjing 210093, Zong Hongshi, Department of Physics, Nanjing University, Nanjing 210093, & Joint Center for Particle, Nuclear Physics and Cosmology, Nanjing 210093.
```*Influence of finite chemical potential on the critical number of fermion flavors in QED{sub 3}*. United States. doi:10.1103/PhysRevD.73.016004.

```
Feng Hongtao, Hou Fengyao, He Xiang, Sun Weimin, Department of Physics, Nanjing University, Nanjing 210093, Zong Hongshi, Department of Physics, Nanjing University, Nanjing 210093, and Joint Center for Particle, Nuclear Physics and Cosmology, Nanjing 210093. Sun .
"Influence of finite chemical potential on the critical number of fermion flavors in QED{sub 3}". United States.
doi:10.1103/PhysRevD.73.016004.
```

```
@article{osti_20774646,
```

title = {Influence of finite chemical potential on the critical number of fermion flavors in QED{sub 3}},

author = {Feng Hongtao and Hou Fengyao and He Xiang and Sun Weimin and Department of Physics, Nanjing University, Nanjing 210093 and Zong Hongshi and Department of Physics, Nanjing University, Nanjing 210093 and Joint Center for Particle, Nuclear Physics and Cosmology, Nanjing 210093},

abstractNote = {Based on the rainbow approximation of Dyson-Schwinger equation and the assumption that the inverse dressed fermion propagator at finite chemical potential is analytic in the neighborhood of {mu}=0, A new method for calculating the dressed fermion propagator at finite chemical potential in QED{sub 3} is developed. From this the effects of the chemical potential on the critical number of the fermion flavors is evaluated.},

doi = {10.1103/PhysRevD.73.016004},

journal = {Physical Review. D, Particles Fields},

number = 1,

volume = 73,

place = {United States},

year = {Sun Jan 01 00:00:00 EST 2006},

month = {Sun Jan 01 00:00:00 EST 2006}

}

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