Doubt About D0 Branes: Point Particle & String Theory

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SUMMARY

A D0 brane is indeed equivalent to a point particle, which contradicts the foundational principles of string theory that reject 0-dimensional objects. The discussion highlights concerns regarding D0-D0 brane interactions potentially causing divergences similar to those encountered in traditional quantum field theory with point particles. Additionally, the concept of T-duality in string theory suggests a pathway to eliminate these particle-like D0 branes by transforming them into D-Strings, thereby aligning with the theoretical framework of string theory.

PREREQUISITES
  • Understanding of D0 branes and their properties in string theory
  • Familiarity with the principles of string theory and its dimensionality
  • Knowledge of quantum field theory and its divergence issues
  • Concept of T-duality in string theory
NEXT STEPS
  • Research the implications of D0 branes in string theory
  • Explore the mathematical framework of T-duality and its applications
  • Study the divergences in quantum field theory related to point particles
  • Investigate the transformation of D0 branes into D-Strings and its significance
USEFUL FOR

The discussion is beneficial for theoretical physicists, string theorists, and students of advanced quantum mechanics who are exploring the complexities of branes and their interactions within string theory.

arroy_0205
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As far as I know a D0 brane is same as a point particle. If that is true then its presence in string theory would go against the very philosophy on which string theory is based (due to presence of 0-dimensional objects). Is my understanding correct? Also it seems to me that D0-D0 brane interactions may lead to divergences in the same way as we face divergences due to point particle interactions under certain circumstances in ordinary quantum field theory. Am I right?
 
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arroy_0205 said:
As far as I know a D0 brane is same as a point particle. If that is true then its presence in string theory would go against the very philosophy on which string theory is based (due to presence of 0-dimensional objects). Is my understanding correct? Also it seems to me that D0-D0 brane interactions may lead to divergences in the same way as we face divergences due to point particle interactions under certain circumstances in ordinary quantum field theory. Am I right?

I do not have an answer to this, but I think since different string theories are related by T-duality, one could get rid of those "particle-like" Branes, turning it into D-Strings.
 

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