Spinors and spin in String Theory.

[Spinnor]

Assume String Theory is headed in the right direction, can one understand electron (or any Standard Model particle spin for that matter) spin roughly in terms of some small spinning string? If so, would you consider that a selling point of the theory as it provides an explanation for intrinsic particle spin?

Do spinors come out of the classical starting point for String Theory; a moving, vibrating, and rotating string, or do we get spinors once the classical string is quantized?

Thanks for any help!

 

[AndyW]

I find the idea of understanding particle spin in terms of small spinning strings intriguing. However, I must caution that while String Theory is a promising approach to unifying quantum mechanics and general relativity, it is still a highly theoretical and unproven concept. Therefore, any claims about its ability to explain intrinsic particle spin should be taken with caution.

That being said, there are some aspects of String Theory that suggest a connection between spinning strings and particle spin. For example, in String Theory, particles are described as vibrations of tiny strings, and the different modes of vibration correspond to different particle properties, such as mass and charge. It is possible that the spin of a particle could also be related to a particular mode of vibration of the string.

However, it is important to note that spin in quantum mechanics is a fundamentally different concept than the classical idea of a spinning object. In quantum mechanics, spin is an intrinsic property of particles and cannot be explained in terms of classical spinning objects. Therefore, even if String Theory does provide some insight into the origin of particle spin, it would not be accurate to say that spinors come directly from the classical starting point of a moving, vibrating, and rotating string. Spinors are a fundamental aspect of quantum mechanics and arise when the classical string is quantized.

In summary, while it is tempting to see a connection between spinning strings and particle spin, it is important to approach this idea with caution and recognize that much more research and experimentation is needed to fully understand the relationship between String Theory and the properties of particles.