| Issue |
EPL
Volume 125, Number 2, January 2019
|
|
|---|---|---|
| Article Number | 21001 | |
| Number of page(s) | 6 | |
| Section | The Physics of Elementary Particles and Fields | |
| DOI | https://doi.org/10.1209/0295-5075/125/21001 | |
| Published online | 25 February 2019 | |
Conformal to harmonic gauge for bosonic strings
Department of Physics, Banaras Hindu University - Varanasi-221005, India
(a) vipulvaranasi@gmail.com
(b) bhabani.mandal@gmail.com
Received: 21 November 2018
Accepted: 18 January 2019
We consider the Polyakov theory of bosonic strings in conformal gauge which are used to study the conformal anomaly. However, it exhibits ghost number anomaly. We show how this anomaly can be avoided by connecting this theory to that of in background covariant harmonic gauge which is known to be free from conformal and ghost number current anomaly, by using suitably constructed finite-field-dependent BRST transformation.
PACS: 11.15.-q – Gauge field theories / 11.30.-j – Symmetry and conservation laws
© EPLA, 2019
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