Electrodynamics at non-zero temperature, chemical potential and Bose condensate

被引：10
作者：
Dolgov, Alexander D. [1 ,2 ,3 ]
Lepidi, Angela [1 ,2 ]
Piccinelli, Gabriella [1 ,4 ]
机构：
[1] Ist Nazl Fis Nucl, Sez Ferrara, I-44100 Ferrara, Italy
[2] Univ Ferrara, Dipartimento Fis, I-44100 Ferrara, Italy
[3] Inst Theoret & Expt Phys, Moscow 113259, Russia
[4] Univ Nacl Autonoma Mexico, FES Aragon, Ctr Technol, Nezahualcoytol 57130, Mexico
来源：
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2009年 / 02期
关键词：
big bang nucleosynthesis; baryon asymmetry; neutron stars; cosmological phase transitions; QUARK-GLUON PLASMA; SYMMETRY-BREAKING; OSCILLATIONS; ASYMMETRY;
D O I：
10.1088/1475-7516/2009/02/027
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Electrodynamics of charged scalar bosons and spin 1/2 fermions is studied at non-zero temperature, chemical potentials, and possible Bose condensate of the charged scalars. Debye screening length, plasma frequency, and the photon dispersion relation are calculated. It is found that in presence of the condensate the time-time component of the photon polarization operator in the first order in electric charge squared acquires infrared singular parts proportional to inverse powers of the spatial photon momentum k.
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页数：17
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