- #1
- 14,255
- 6,738
In your opinion, what theorethical objects are the most likely to represent the most fundamental constituents of nature?
Thomas Larsson said:I'm missing one alternative: none of the above...
Maybe I should slightly reformulate the question:Thomas Larsson said:I'm missing one alternative: none of the above.
This, indeed, is how LQG is usually formulated. Such a formulation assumes that continuous topology is prior to fields, metric, and spin networks.marcus said:I agree. And I would say that "fields" and "spin networks" are essentially the same option, because a spin network is just a way to describe a field without committing to a prior choice of background geometry.
Demystifier said:This, indeed, is how LQG is usually formulated. ...
In the not-so-new lectures written by Thiemann (gr-qc/0210094), at page 44 he writes: "One may spaculate that the discrete structure is fundamental and that the analiticity assumptions that we began with should be unimportant, in the final picture everything should be only combinatorical."marcus said:Do you mean some new papers by Thiemann where he uses the term "algebraic quantum gravity"? That is interesting, but it was just last year and i haven't had enough time to assimilate the new direction. Perhaps the AQG approach really does describe fields, but in a new way, so that it has the same basic ontology.
It seems to be more related to the interpretations of QM (see the poll inwilliam donnelly said:I would like to suggest a write in candidate: bits.
Demystifier said:In your opinion, what theorethical objects are the most likely to represent the most fundamental constituents of nature?
In your opinion, what theorethical objects are the most likely to represent the most fundamental constituents of nature?
The world is made of matter, which is anything that has mass and takes up space. This includes elements, compounds, and mixtures.
The smallest unit of matter is an atom, which is made up of even smaller particles called protons, neutrons, and electrons.
The building blocks of the world are elements, which are substances that cannot be broken down into simpler substances by chemical means. There are 118 known elements, each with its own unique properties.
Elements are arranged on the periodic table, which is a chart that organizes them based on their atomic structure and properties. Elements in the same row have similar properties, while elements in the same column have similar chemical behaviors.
Atoms are the building blocks of all matter and are essential for the formation of everything in the world. They combine to form molecules, which in turn make up all the substances and materials we see around us.