b

2007-09-21 15:28:25 UTC

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is there a nice and simple way to see how worldsheet weyl anomalyRaw Message

translates into target spacetime lorentz anomaly, in bosonic string

theory?

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b

2007-09-21 15:28:25 UTC

Permalink

is there a nice and simple way to see how worldsheet weyl anomalyRaw Message

translates into target spacetime lorentz anomaly, in bosonic string

theory?

t***@cc.usu.edu

2007-09-27 11:04:07 UTC

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is there a nice and simple way to see how worldsheet weyl anomaly

translates into target spacetime lorentz anomaly, in bosonic string

theory?

least in part.

The Weyl anomaly implies that the group of conformal transformations

(the group of diffeomorphisms which have the effect of rescaling the

metric)

is no longer a symmetry of the theory. The Lorentz anomaly occurs in

the light

cone gauge (the gauge group is the group conformal transformations).

In the light cone gauge a particular reference frame is singled out.

Under a Lorentz tranformation

this reference frame changes, and you consequently have to make a

gauge

transformation (i.e., a conformal transformation) to stay in the light

cone gauge. Consequently, the

generators of the Lorentz group need to include terms generating

particular conformal transformations.

SInce the conformal symmetry is anomalous this leads to anomalous

Lorentz symmetry.

charlie torre

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