Results 91 to 100 of about 1,164 (183)

Statistical Thermodynamics of Polymer Quantum Systems

Symmetry, Integrability and Geometry: Methods and Applications, 2011
Polymer quantum systems are mechanical models quantized similarly as loop quantum gravity. It is actually in quantizing gravity that the polymer term holds proper as the quantum geometry excitations yield a reminiscent of a polymer material.
Guillermo Chacón-Acosta, Elisa Manrique, Leonardo Dagdug, Hugo A. Morales-Técotl   +3 more
doaj   +1 more source

Constraints in canonical quantum gravity

, 1998
Imperial Users ...
Markopoulou, Fotini G., Markopoulou, Fotini G.   +1 more
openaire   +1 more source

Quantum Schwarzschild-(A)dS black holes: unitarity and singularity resolution

Journal of High Energy Physics
We consider the canonical quantisation of spherically symmetric spacetimes within unimodular gravity, leaving sign choices in the metric general enough to include both the interior and exterior Schwarzschild-(Anti-)de Sitter spacetime.
Steffen Gielen, Sofie Ried
doaj   +1 more source

Symmetry analysis in multi scalar-torsion cosmological model with quantum description

European Physical Journal C: Particles and Fields
A detailed symmetry analysis has been done for the present multi scalar-torsion gravity theory in the background of flat Friedmann Lema $$\hat{\text{ i }}$$ i ^ tre Robertson Walker (FLRW) space-time.
Shriton Hembrom, Roshni Bhaumik, Sourav Dutta, Subenoy Chakraborty   +3 more
doaj   +1 more source

Canonical Quantum Gravity [PDF]

, 1994
openaire   +1 more source

Time evolution in canonical quantum gravity is trivial

Annals of Physics
The Wheeler-DeWitt (WdW) equation does not describe any explicit time evolution of the wave function, and somehow related to this issue, there is no natural way of defining an invariant inner product that provides a viable probability interpretation.
openaire   +2 more sources

Quantum Gravity Spacetime: Universe vs. Multiverse. [PDF]

Entropy (Basel)
Tessarotto M, Cremaschini C.
europepmc   +1 more source

Entropy of a Quasi-de Sitter Spacetime and the Role of Specific Heat. [PDF]

Entropy (Basel)
Luongo O, Azizinia M, Boshkayev K.
europepmc   +1 more source

Tunneling between Multiple Histories as a Solution to the Information Loss Paradox. [PDF]

Entropy (Basel), 2023
Chen P, Sasaki M, Yeom DH, Yoon J.
europepmc   +1 more source

Master field equations for spherically symmetric gravitational fields beyond general relativity. [PDF]

Nat Commun
Carballo-Rubio R.
europepmc   +1 more source