scholarly journals Vacuum polarization of a massless spinor field in global monopole spacetime

1999 ◽  
Vol 60 (6) ◽  
Author(s):  
E. R. Bezerra de Mello ◽  
V. B. Bezerra ◽  
N. R. Khusnutdinov
Keyword(s):  
Spinor Field ◽  
Vacuum Polarization ◽  
Global Monopole ◽  
Massless Spinor

VACUUM POLARIZATION IN THE GLOBAL MONOPOLE SPACETIME AT FINITE TEMPERATURE

2002 ◽  
Vol 17 (06n07) ◽  
pp. 879-884 ◽  
Author(s):  
E. R. BEZERRA DE MELLO ◽  
F. C. CARVALHO
Keyword(s):  
High Temperature ◽  
Numerical Analysis ◽  
Finite Temperature ◽  
Vacuum Polarization ◽  
Temperature Limit ◽  
Massless Scalar ◽  
Green Functions ◽  
Global Monopole ◽  
Thermal Average ◽  
High Temperature Limit

In this paper we calculate the thermal Green functions associated with massless scalar and spin-1/2 fields in the pointlike global monopole spacetime. The thermal average values of their respective energy-momentum tensors are formally presented and explicit calculations are performed for specific values of the parameter α which codify the presence of the monopole. Moreover their high-temperature limit behaviors are explicitly exhibited by numerical analysis.

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