scholarly journals Reduced phase space formalism for spherically symmetric geometry with a massive dust shell

1997 ◽  
Vol 56 (12) ◽  
pp. 7674-7691 ◽  
Author(s):  
John L. Friedman ◽  
Jorma Louko ◽  
Stephen N. Winters-Hilt
Keyword(s):  
Phase Space ◽  
Spherically Symmetric ◽  
Dust Shell ◽  
Symmetric Geometry ◽  
Space Formalism

PROBLEMS WITH THE PATH-INTEGRAL DESCRIPTION OF THE TEMPORAL, LIGHT-CONE AND FOCK-SCHWINGER GAUGES

1992 ◽  
Vol 07 (03) ◽  
pp. 219-224 ◽  
Author(s):  
MARTIN LAVELLE ◽  
DAVID McMULLAN
Keyword(s):  
Phase Space ◽  
Path Integral ◽  
Light Cone ◽  
Space Formalism

Simple arguments are presented to show that the standard Faddeev-Popov formulations of the temporal, light-cone and Fock-Schwinger gauges are not unitary. We also demonstrate that the phase space formalism of these theories provide three counterexamples to the Fradkin-Vilkovisky theorem.

Stability of charged neutron star in Palatini f(R) gravity

2019 ◽  
Vol 34 (31) ◽  
pp. 1950252 ◽  
Author(s):  
M. Z. Bhatti ◽  
Z. Yousaf ◽  
Zarnoor
Keyword(s):  
Chemical Composition ◽  
Neutron Star ◽  
Modified Gravity ◽  
Equilibrium Equation ◽  
Hydrostatic Equilibrium ◽  
Spherically Symmetric ◽  
Field Equations ◽  
Symmetric Geometry ◽  
The Stability ◽  
Tov Equation

In this work, we discuss the stability of charged neutron star in the background of [Formula: see text] gravity and construct the generalized Tolman–Oppenheimer–Volkoff (TOV) equations. For this, we consider static spherically symmetric geometry to construct the hydrostatic equilibrium equation and deduce TOV equations from modified field equations with electromagnetic effects. We conclude that the generalized TOV equation depicts the stable stars configuration independent of the generic function of the modified gravity if the condition of uniform entropy and chemical composition is assumed.

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