- #36
petm1
- 399
- 1
As far as I understand m theory, a string is a one-dimensional object. As to its size I once read that it was so small that it was able to wrap itself around a zero-dimensional elementary particle.
Demystifier said:Yet another argument that particles are more fundamental than fields:
http://xxx.lanl.gov/abs/0705.3542
Practically measurable quantities resulting from quantum field theory are not described by hermitian operators, contradicting one of the cornerstone axioms of orthodox quantum theory. This could be a sign that some of the axioms of orthodox quantum theory should be reformulated. A nonorthodox reformulation of quantum theory based on integral curves of particle currents is advocated and possible measurable manifestations are discussed. The consistency with particle creation and destruction requires particles to be extended objects, which can be viewed as a new derivation of string theory. Within this reformulation, an indirect low-energy test of string theory is also possible.
Demystifier said:In your opinion, what are more fundamental objects: particles or fields?
Buy a dictionnary. You have vocabulary issues.rewebster said:when I see the 'term'/'label'--"metaphysics"---my first thought is "THE PARANORMAL"
google said:Definitions of metaphysics on the Web:
- the philosophical study of being and knowing
wordnet.princeton.edu/perl/webwn[/URL]
[*]Metaphysics (Greek words meta = after/beyond and physics = nature) is a branch of philosophy concerned with the study of "first principles" and "being" (ontology).
[url=en.wikipedia.org/wiki/Metaphysics][B][color=blue][U]link to wiki[/U][/color][/B][/url]
[/list][/quote]
:rofl:Fra said:He is not alone. With metaphysics I think "strings" I guess I need a dictionary too
Demystifier said:In your opinion, what are more fundamental objects: particles or fields?
In other words, is QFT just a convenient mathematical way to calculate the properties of particles,
or
are particles just specific states of quantum fields?