Graduate Can String Theory Explain Fundamental Particles Through Standing Waves?

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String theory posits that fundamental particles are manifestations of one-dimensional strings vibrating in specific patterns, with different vibrations corresponding to different particles. Initially focused on one-dimensional strings, the theory has evolved to include two-dimensional branes. For fermionic strings, string theory requires ten dimensions, while M-theory simplifies this to ten dimensions for branes. Notably, standard model particles correspond to zero modes in this ten-dimensional framework, suggesting they behave more like "elastic rods" than traditional strings. The discussion emphasizes the complexity of string theory and its implications for understanding fundamental particles.
alantheastronomer
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I've heard in a general way that string theory can describe the properties of the fundamental particles through standing waves or resonances of strings. Is this in fact the case, and if so, can someone provide a link to the relevant research papers?
 
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Here at PF we do encourage some activity from posters; a simple google search, for instance. If you then ask more specific questions we can provide specific help. Asking for 'Relevant research papers' is a bit moot :rolleyes: .
 
Yes, that's the case. In string theory it suggests that one dimensional vibrating string produces fundamental particle. Different pattern in vibration produces different pattern. Firstly it was suggested 1d strings but now replacing string there is 2 dimensional branes which are like loop structure. According to string theory, we need 10 dimensions for fermionic strings and more than 20 dimension for bosonic string to exist. But now from M theory we all need is 10 dimensions for these branes to exist. You can view this in Wikipedia..
 
No resonance or higher mode of a string is expected to correspond to a standard model particle.

What happens is that the fundamental particles we know will correspond to zero modes in the 10D theory, or equivalently to particles produced in some extreme limit of the string tension. So the particles we know are actually "elastic rods" more than "strings".
 
"Supernovae evidence for foundational change to cosmological models" https://arxiv.org/pdf/2412.15143 The paper claims: We compare the standard homogeneous cosmological model, i.e., spatially flat ΛCDM, and the timescape cosmology which invokes backreaction of inhomogeneities. Timescape, while statistically homogeneous and isotropic, departs from average Friedmann-Lemaître-Robertson-Walker evolution, and replaces dark energy by kinetic gravitational energy and its gradients, in explaining...

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