A SPECIAL FORM OF THE PATH INTEGRAL FOR THE MASTER CONSTRAINT OF LOOP QUANTUM GRAVITY

2019 ◽  
Vol 22 (1) ◽  
pp. 65-72
Author(s):  
Patrick Linker ◽  
Cenap Ozel
Keyword(s):  
Quantum Gravity ◽  
Path Integral ◽  
Special Form ◽  
Loop Quantum Gravity

ONE-LOOP QUANTUM GRAVITY ON DE SITTER SPACE

1993 ◽  
Vol 08 (09) ◽  
pp. 1637-1652 ◽  
Author(s):  
D.V. VASSILEVICH
Keyword(s):  
Quantum Gravity ◽  
Path Integral ◽  
Loop Quantum Gravity ◽  
De Sitter Space ◽  
De Sitter

We demonstrate that being formulated properly all the approaches to de Sitter quantum gravity give the same one-loop path integral as was obtained by Taylor and Veneziano in a framework of the gauge fixed procedure.

scholarly journals NEW SPIN FOAM MODELS OF QUANTUM GRAVITY

2005 ◽  
Vol 20 (17n18) ◽  
pp. 1305-1313
Author(s):  
A. MIKOVIĆ
Keyword(s):  
General Relativity ◽  
Models Of Quantum Gravity ◽  
Quantum Gravity ◽  
Path Integral ◽  
Critical Review ◽  
Loop Quantum Gravity ◽  
Spin Networks ◽  
Spin Foam Models ◽  
Spin Foam Model ◽  
Spin Foam

We give a brief and a critical review of the Barret-Crane spin foam models of quantum gravity. Then we describe two new spin foam models which are obtained by direct quantization of General Relativity and do not have some of the drawbacks of the Barret-Crane models. These are the model of spin foam invariants for the embedded spin networks in loop quantum gravity and the spin foam model based on the integration of the tetrads in the path integral for the Palatini action.

scholarly journals Review on hermiticity of the volume operators in Loop Quantum Gravity

2019 ◽  
Vol 51 (5) ◽  
Author(s):  
S. Ariwahjoedi ◽  
I. Husin ◽  
I. Sebastian ◽  
F. P. Zen
Keyword(s):  
Quantum Gravity ◽  
Loop Quantum Gravity

scholarly journals Quantum gravity: A brief history of ideas and some prospects

2015 ◽  
Vol 24 (11) ◽  
pp. 1530028 ◽  
Author(s):  
Steven Carlip ◽  
Dah-Wei Chiou ◽  
Wei-Tou Ni ◽  
Richard Woodard
Keyword(s):  
Black Hole ◽  
String Theory ◽  
Quantum Gravity ◽  
Loop Quantum Gravity ◽  
Black Hole Thermodynamics ◽  
History Of Ideas ◽  
Foreseeable Future ◽  
Gravitational Effects ◽  
History Of

We present a bird's-eye survey on the development of fundamental ideas of quantum gravity, placing emphasis on perturbative approaches, string theory, loop quantum gravity (LQG) and black hole thermodynamics. The early ideas at the dawn of quantum gravity as well as the possible observations of quantum gravitational effects in the foreseeable future are also briefly discussed.

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