Sen, Siddhartha and Tuite, Michael P.
(1988)
*A String Motivated Approach to the Relativistic Point Particle.*
(Preprint)

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## 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 Feynman and Schwinger proper time formalisms. 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.

Item Type: | Article |
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Divisions: | School of Theoretical Physics > Preprints |

Date Deposited: | 10 Jul 2018 14:57 |

Last Modified: | 15 Dec 2022 02:28 |

URI: | https://dair.dias.ie/id/eprint/901 |

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