How does M theory describe fermions?

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SUMMARY

M-theory describes fermions, such as electrons, as open strings attached to various branes, specifically D2/M2, D4, or M5 branes. Unlike gravitons, which are represented as closed strings, fermions are fundamentally different in their string representation. The discussion emphasizes that M-theory does not inherently include strings, directing readers to string theory for a more comprehensive understanding. For foundational knowledge, Zwiebach's text is recommended for its clear introduction to phenomenology in string theory.

PREREQUISITES
  • Understanding of M-theory and its implications in theoretical physics
  • Familiarity with string theory concepts and terminology
  • Knowledge of brane dynamics, specifically D2, D4, and M5 branes
  • Basic grasp of fermions and their role in particle physics
NEXT STEPS
  • Study Zwiebach's book for an introduction to phenomenology in string theory
  • Research the differences between open and closed strings in string theory
  • Explore the role of D-branes in M-theory and string theory
  • Investigate the implications of fermions in the context of quantum field theory
USEFUL FOR

Theoretical physicists, students of advanced physics, and anyone interested in the intersection of M-theory and string theory, particularly regarding fermions and brane dynamics.

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How are fermions, like electrons, described by m theory? Are they closed strings like gravitons, or are they open strings attached to a D2/M2, D4, or M5 branes?
 
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To my knowledge m-theory does not contain strings, so i think you should look for the answer in string theory. Zwiebach contains a very nice introduction to phenomenology in string theory :)
 

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