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A string motivated approach to the relativistic point particle

Tuite, Michael P.
Sen, Siddhartha
Repository DOI
Publication Date
2003-11-20
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Article
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Citation
Tuite, Michael; Sen, Siddhartha (2003). A string motivated approach to the relativistic point particle. Modern Physics Letters A 18 (33), 2483-2490
Abstract
Using concepts developed in string theory, Cohen, Moore, Nelson and Polchinski calculated the propagator for a relativistic point particle. Following these authors we extend the technique to include the case of closed world lines. The partition function found corresponds to the Feynmann and Schwinger proper time formalism. We also explicitly verify that the partition function is equivalent to the usual path length action partition function. As an example of a sum over closed world lines, we compute the Euler-Heisenberg effective Lagrangian in a novel way.
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Publisher
World Scientific Pub Co Pte Lt
Publisher DOI
10.1142/s0217732303012726
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Attribution-NonCommercial-NoDerivs 3.0 Ireland