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June 19, 2021 at 1:27 pm
The interpretation of experimental results is very important. Other situations are: 1) build models in LQG and make the limit where the space-time is classical and the fields are quantum and comparing specific models in LQG with the corresponding models build in semi-classical context. If both result are very similars the consistency of the LQG model in the respective limit can be taken seriously.
June 19, 2021 at 12:56 pmYes, I think that the time is a label that describes a cronological order of events, but this order is not fundamental. In the probabilistic view (second law of th.) the entropy grows as the time goes on, but this assertion is statistical only. In a fundamental way, we can not build a clock to stablish a temporal order in the cosmos. But this label is usueful when we split the behavior of systems in order to describe them. The dynamical systems are good examples of these.
June 18, 2021 at 3:58 pmI imagine that processes and events are fundamental, and the emergence of time and space can be extract from them.
May 26, 2021 at 10:14 amYes. Black holes are important solutions and their behavior may bring several clues about the marriage between quantum mechanics and gravity.
April 21, 2021 at 3:36 pmI think that other approaches such as Loop Quantum Gravity must be included in efforts to a unified theory. But the richness of these theories may lead to new chalenges and possibly, new ideas and concepts.
April 21, 2021 at 3:29 pmThe link between geometry and quantum theory is very rich and it I think that it may elucidate some problems in formulating a version of quantum gravity.
April 21, 2021 at 3:25 pmIn science, the ultimate theory brings new ideas and concepts, leading to new theories. I think that is endless.
April 20, 2021 at 11:20 amA possible marriage between string theory and loop quantum gravity may bring some surprises or new concepts.
April 19, 2021 at 11:59 amThe cyclic model is an interesting idea and it must be extracted from first principles and models suchs as String Cosmology or Loop Quantum Gravity. We launch the questions? Are there other versions of this picture?
April 19, 2021 at 11:56 amI think that we must concentrate efforts in order to understand the vacuum properties, from experiment and theory.
