scholarly journals Emergent four-dimensional linearized gravity from a spin foam model

2019 ◽  
Vol 100 (2) ◽  
Author(s):  
Muxin Han ◽  
Zichang Huang ◽  
Antonia Zipfel
Keyword(s):  
Linearized Gravity ◽  
Foam Model ◽  
Spin Foam Model ◽  
Spin Foam

scholarly journals MEASUREMENTS AND INFORMATION IN SPIN FOAM MODELS

2012 ◽  
Vol 27 (28) ◽  
pp. 1250164
Author(s):  
J. MANUEL GARCÍA-ISLAS
Keyword(s):  
Information Theory ◽  
Quantum Gravity ◽  
Cosmological Constant ◽  
Shannon Entropy ◽  
Three Dimensional ◽  
Spin Network ◽  
Spin Foam Models ◽  
Foam Model ◽  
Spin Foam Model ◽  
Spin Foam

In the three-dimensional spin foam model of quantum gravity with a cosmological constant, there exists a set of observables associated with spin network graphs. A set of probabilities is calculated from these observables, and hence the associated Shannon entropy can be defined. We present the Shannon entropy associated with these observables and find some interesting bounded inequalities. The problem relates measurements, entropy and information theory in a simple way which we explain.

scholarly journals A spin foam model without bubble divergences

2001 ◽  
Vol 599 (1-2) ◽  
pp. 255-282 ◽  
Author(s):  
Alejandro Perez ◽  
Carlo Rovelli
Keyword(s):  
Foam Model ◽  
Spin Foam Model ◽  
Spin Foam

scholarly journals Spin-foam model for gravity coupled to massless scalar field

2019 ◽  
Vol 36 (7) ◽  
pp. 075006 ◽  
Author(s):  
Marcin Kisielowski ◽  
Jerzy Lewandowski
Keyword(s):  
Scalar Field ◽  
Massless Scalar ◽  
Massless Scalar Field ◽  
Foam Model ◽  
Spin Foam Model ◽  
Spin Foam

scholarly journals Spin foam model for Lorentzian general relativity

2001 ◽  
Vol 63 (4) ◽  
Author(s):  
Alejandro Perez ◽  
Carlo Rovelli
Keyword(s):  
General Relativity ◽  
Foam Model ◽  
Spin Foam Model ◽  
Spin Foam

scholarly journals The Holst spin foam model via cubulations

2012 ◽  
Vol 14 (10) ◽  
pp. 103054 ◽  
Author(s):  
Aristide Baratin ◽  
Cecilia Flori ◽  
Thomas Thiemann
Keyword(s):  
Foam Model ◽  
Spin Foam Model ◽  
Spin Foam
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