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Functional Integral Construction of the BRST Invariant String Ground State

Document Type

Article

Journal/Book Title/Conference

Classical and Quantum Gravity

Volume

4

Issue

5

Publisher

Institute of Physics

Publication Date

1987

First Page

1149

Last Page

1162

Abstract

The authors use the Euclidean functional integral prescription to construct the ground-state wavefunction of the closed bosonic string including ghost contributions. They work in 26 dimensions where the sole contribution to the wavefunction comes from the string and ghost classical actions as well as the tachyonic centre of mass motion. They show that the ghost action must include a surface term to be consistent with the ghost boundary conditions. The result obtained represents the usual string plus ghost ground state and is BRST invariant.

Comments

Originally published by the Institute of Physics. Publisher's PDF available through remote link.
Note: Charles Torre was affiliated with the Imperial College of London at the time of publication.

https://doi.org/10.1088/0264-9381/4/5/016

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