Conformal invariance on a generic Riemann surface in the presence of a non-flat background metric

L. Bonora; M. Martellini; M. Rinaldi; K. Wu

doi:10.1016/0370-2693(89)91411-1

Conformal invariance on a generic Riemann surface in the presence of a non-flat background metric

L. Bonora
, M. Martellini
, M. Rinaldi
, K. Wu

Research output: Contribution to journal › Article › peer-review

Abstract

By using bases of meromorphic differentials, recently proposed by Krichever and Novikov, we calculate the brackets of the moments of the energy-momentum tensor of a bosonic string theory in the presence of a generic target metric. To do this we expand the target metric in normal coordinates. To the lowest perturbative order we find that the BRST operator is nilpotent if we impose the condition that the Ricci tensor of the target metric vanish.

Original language	English
Pages (from-to)	153-161
Number of pages	9
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	218
Issue number	2
DOIs	https://doi.org/10.1016/0370-2693(89)91411-1
Publication status	Published - 16 Feb 1989
Externally published	Yes

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10.1016/0370-2693(89)91411-1

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abstract = "By using bases of meromorphic differentials, recently proposed by Krichever and Novikov, we calculate the brackets of the moments of the energy-momentum tensor of a bosonic string theory in the presence of a generic target metric. To do this we expand the target metric in normal coordinates. To the lowest perturbative order we find that the BRST operator is nilpotent if we impose the condition that the Ricci tensor of the target metric vanish.",

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AU - Martellini, M.

AU - Rinaldi, M.

AU - Wu, K.

PY - 1989/2/16

Y1 - 1989/2/16

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AB - By using bases of meromorphic differentials, recently proposed by Krichever and Novikov, we calculate the brackets of the moments of the energy-momentum tensor of a bosonic string theory in the presence of a generic target metric. To do this we expand the target metric in normal coordinates. To the lowest perturbative order we find that the BRST operator is nilpotent if we impose the condition that the Ricci tensor of the target metric vanish.

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JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 2

ER -

Conformal invariance on a generic Riemann surface in the presence of a non-flat background metric

Abstract

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