scholarly journals Vacuum Polarization Effect on the Chiral Bag Model with ω Meson

1987 ◽  
Vol 78 (6) ◽  
pp. 1392-1404 ◽  
Author(s):  
Shin-ichi Yoro ◽  
Toshitaka Tatsumi
Keyword(s):  
Polarization Effect ◽  
Vacuum Polarization ◽  
Bag Model

Vacuum polarization effect in intense laser fields

2011 ◽  
Vol 23 (1) ◽  
pp. 217-220
Author(s):  
任娜 Ren Na ◽  
王加祥 Wang Jiaxiang ◽  
李安康 Li Ankang ◽  
李桂波 Li Guibo
Keyword(s):  
Polarization Effect ◽  
Vacuum Polarization ◽  
Intense Laser ◽  
Intense Laser Fields ◽  
Laser Fields

scholarly journals ENTROPY OF SCALAR FIELD NEAR A SCHWARZSCHILD BLACK HOLE HORIZON

2006 ◽  
Vol 21 (30) ◽  
pp. 6183-6190 ◽  
Author(s):  
M. R. SETARE
Keyword(s):  
Black Hole ◽  
Scalar Field ◽  
Spherical Shell ◽  
Polarization Effect ◽  
Vacuum Polarization ◽  
Mixed Boundary Condition ◽  
Mixed Boundary ◽  
Massive Scalar ◽  
Schwarzschild Black Hole ◽  
Massive Scalar Field

In this paper we compute the correction to the entropy of Schwarzschild black hole due to the vacuum polarization effect of massive scalar field. The Schwarzschild black hole is supposed to be confined in spherical shell. The scalar field obeying mixed boundary condition on the spherical shell.

Extraordinary and upper-hybrid waves in spin quantum magnetoplasmas with vacuum polarization effect

2021 ◽  
Vol 87 (4) ◽  
Author(s):  
Jun Zhu ◽  
Xiaoshan Liu ◽  
Yuee Luo
Keyword(s):  
Polarization Effect ◽  
Vacuum Polarization ◽  
Spin Current ◽  
Extraordinary Wave ◽  
Polarization Current ◽  
Relativistic Degeneracy ◽  
Bohm Potential ◽  
Spin Quantum ◽  
Degeneracy Pressure ◽  
Hybrid Waves

The propagation of extraordinary and upper-hybrid waves in spin quantum magnetoplasmas with vacuum polarization effect is investigated. Based on the quantum magnetohydrodynamics model including Bohm potential, arbitrary relativistic degeneracy pressure and spin force, and Maxwell's equations modified by the spin current and vacuum polarization current, the dispersion relations of extraordinary and upper-hybrid waves are derived. The analytical and numerical results show that quantum effects (Bohm potential, degeneracy pressure and spin magnetization energy) and the vacuum polarization effect modify the propagation of the extraordinary wave. Under the action of a strong magnetic field, the plasma frequency is obviously increased by the vacuum polarization effect.

THE SKYRMION AND ANTI-SKYRMION CHIRAL BAG MODEL FOR THE NUCLEON

1988 ◽  
Vol 03 (06) ◽  
pp. 1413-1421 ◽  
Author(s):  
ATSUSHI HOSAKA ◽  
HIROSHI TOKI
Keyword(s):  
Hybrid Model ◽  
Vacuum Polarization ◽  
Casimir Effect ◽  
Simplified Model ◽  
Bag Model

We study a simplified model for the chiral bag plus Skyrmion hybrid model (CSH) in which the vacuum polarization due to the chiral Casimir effect is approximated by the anti-Skyrmion configuration. We closely investigate to what extent this model is available and find it provides a very similar result to those of the CSH model for the bag radius R≳0.4 fm.

scholarly journals VACUUM POLARIZATION IN THE SPACE–TIME OF A SCALAR–TENSOR COSMIC STRING

2001 ◽  
Vol 16 (24) ◽  
pp. 1565-1571 ◽  
Author(s):  
V. B. BEZERRA ◽  
R. M. TEIXEIRA FILHO ◽  
G. GREBOT ◽  
M. E. X. GUIMARÃES
Keyword(s):  
Cosmic String ◽  
Polarization Effect ◽  
Vacuum Polarization ◽  
Energy Momentum Tensor ◽  
Vacuum Expectation ◽  
Momentum Tensor ◽  
Space Time ◽  
Scalar Tensor Theory ◽  
Expectation Values ◽  
Tensor Theory

We study the vacuum polarization effect in the space–time generated by a magnetic flux cosmic string in the framework of a scalar–tensor theory of gravity. The vacuum expectation values of the energy–momentum tensor of a conformally coupled scalar field are calculated and the dilaton's contribution to the vacuum polarization effect is shown.

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