TY - JOUR
T1 - Conformal invariance on a generic Riemann surface in the presence of a non-flat background metric
AU - Bonora, L.
AU - Martellini, M.
AU - Rinaldi, M.
AU - Wu, K.
PY - 1989/2/16
Y1 - 1989/2/16
N2 - 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.
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.
UR - http://www.scopus.com/inward/record.url?scp=45249131162&partnerID=8YFLogxK
U2 - 10.1016/0370-2693(89)91411-1
DO - 10.1016/0370-2693(89)91411-1
M3 - Article
SN - 0370-2693
VL - 218
SP - 153
EP - 161
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 -